Best Practices for securing Oracle FLEXCUBE Universal Banking
Contents
1. Create minimal writable file systems esp system files directories Limit user file writes to their own directories and tmp Add directories for specific groups Limit important file access to authorized personnel Use setuid setgid only where absolutely necessary Maintenance Good security practice does not end after installation Continued maintenance tasks include e Install the latest software patches e Install latest operating system patches e Verify user accounts delete or lock accounts no longer required e Run security software and review output e Keep up to date on security issues by subscribing to security mailing lists reading security news groups and following the latest security procedures e Implement trusted file systems like NIS NIS or others such as HP UX trusted system e Test the system with tools like NESSUS network security and CRACK password checker e Install Tripwire to detect changes to files e Monitor log files including btmp wtmp syslog sulog etc Consider setting up automatic email or paging to warn system administrators of any suspicious behaviour Also check the snort logs The environment in which Oracle Applications run contributes to or detracts from overall system security This section contains security recommendations for tightening Oracle file system security along with more general advice for overall system hardening 4 3 ORACLE 5 1 5 2 5 3 5 Application S2. Dweblogic security SSL enforceConstraints off Also verify if any messages have been logged at WebLogic server boot providing information about the presence of certificates that could be rejected by clients Ensure that Host Name Verification is Enabled Oracle WebLogic Server implements host name verification when it acts as a SSL client this prevents main in the middle attacks from being performed against SSL itself It should be noted that the Oracle FLEXCUBE Investor Servicing application deployed on WebLogic Server will establish outbound SSL connections in certain scenarios for instance when requests are made to the Oracle BI Publisher server In such an event Oracle WebLogic Server will behave as a SSL client Oracle WebLogic Server will behave as a SSL client in several scenarios besides the outbound SSL requests made by applications deployed on Oracle WebLogic Server For instance managed servers will establish SSL connections with the Admin server at boot time Hence it is recommended to ensure that host name verification is enabled in Oracle WebLogic Server which happens to be the secure default Oracle Financial Services highly recommends the usage of certificates that will pass verification Oracle Financial Services also recommends against the usage of demonstration certificates in production It should be noted that usage of demonstration certificates in a testing or development environment containing a multi server WebLogi
3. On UNIX systems Set the permissions on SORACLE HOME bin to 0751 or less Set all other directories in ORACLE_HOME to 0750 or less Note this limits access to the Oracle user and its groups probably DBA Set file permissions for listener ora and sqinet ora to 0600 Set file permissions for tnsnames ora to 0644 Ensure that the owner group and modes of the Oracle files created upon installation are set to allow minimum privilege The following commands make this change Note the group and owner are for illustration only the correct group and owner should be substituted chgrp R lt dba gt SORACLE HOME chown lt oracle gt ORACLE_HOME Review owners and groups when cloning a database Protect the SORACLE HOME rdbms admin directory including catalog sqi catproc sql and backup scripts Secure scripts containing usernames and passwords Verify that set user id SUID and set group id SGID are not set on binaries In general Oracle recommends that the SUID and SGID bits to be removed from binaries shipped by Oracle On windows systems NTFS must be used The FAT FAT32 file system provides no security The database and applications require that the underlying operating system provide certain services Electronic Mail 4 1 ORACLE 4 3 5 require access to SMTP Mail Transfer Agent SMTP MTA tvpicallv send mail This is required for outbound emails tvpicallv notifications from FCIS if this feature is
4. license transmit distribute exhibit perform publish or display any part in any form or by any means Reverse engineering disassembly or decompilation of this software unless required by law for interoperability is prohibited The information contained herein is subject to change without notice and is not warranted to be error free If you find any errors please report them to us in writing This software or hardware and documentation may provide access to or information on content products and services from third parties Oracle Corporation and its affiliates are not responsible for and expressly disclaim all warranties of any kind with respect to third party content products and services Oracle Corporation and its affiliates will not be responsible for any loss costs or damages incurred due to your access to or use of third party content products or services
5. should be enforced by the operating system for instance via the pam configuration in UNIX Passwords should not be easy to guess and neither should they be stored in an insecure media or written down for easy remembrance Passwords should be set to expire periodically 60 90 days is the recommended period Passwords for privileged accounts may have a shorter lifecycle Restrict File System Access It is recommended to use a file system that allows maintenance of access rights 2 1 ORACLE 2 6 2 7 2 8 2 9 2 10 In Windows 5 allows for ACLs to maintained at the most granular level however due care should be exercised when granting file svstem privileges to the Evervone group Similariv in UNIX like operating systems privileges should not be granted to the Nobody user and group unless absolutely required Network Perimeter Protection Firewall rules should be established to ensure that only a required set of services is accessible to machines outside the data center Network access can be further restricted to ensure that only certain subnets with trusted machines and not all machines can access machines in the data center Oracle Financial Services does not recommend exposing the application server hosting Oracle FLEXCUBE Investor Servicing to the Internet Network Service Protection Network services installed on the server should be enabled only to serve the primary business function s that t
6. CLE 5 5 5 5 1 5 5 2 Securing the Oracle FLEXCUBE Investor Servicing Application The following guidelines serve to secure the Oracle FLEXCUBE Investor Servicing application deployed on Oracle WebLogic Server Enforce the Usage of SSL The FLEXCUBE UBS Installer allows a deployer to configure FLEXCUBE UBS such that all HTTP connections to the FLEXCUBE UBS application are over SSL TLS In other words all HTTP traffic in the clear will be prohibited only HTTPS traffic will be allowed It is highly recommended to enable this option is a production environment especially when WebLogic Server acts as the SSL terminator Ensure that the following snippet of code is present in the web xml file of the FLEXCUBE UBS web module i e in FCJNeoWeb war lt security constraint gt lt web resource collection gt lt web resource name gt FLEXCUBE UBS lt web resource name gt lt description gt All endpoints secured lt description gt lt url pattern gt lt url pattern gt lt web resource collection gt lt user data constraint gt lt transport guarantee gt CONFIDENTIAL lt transport guarantee gt lt user data constraint gt lt security constraint gt Ensure the Serviet Serviet is Disabled Oracle FLEXCUBE Investor Servicing does not use the ServletServlet to create default mappings for servlets All servlets are directly mapped to the required URLs Ensure that the following code snippet or a similar one that uses the weblogic s
7. ODUCTION 2 2 2 10 SOFTWARE UPDATES AND PATCHES cccccccececececececececececececececececececececececececececececececececececececececeseceeeeeeeeeeess 2 2 2 11 USAGE OF SECURITY APPLIANCES AND SOFTWARE cccccecesececececececececececececececececececececececececececececeeeeeeseeeess 2 3 2 12 CONFIGURE SECURITY AUDITING ccccccecccececececececececececececececececececececececececececececececesecesecececeeeeeseceeeeeeeeeeess 2 3 2 13 SEPARATION OF CONCERNS ccccccccccececececececececececececececececececececececececececececececeeecececececececesececesececeseceeeceeeeeeess 2 3 214 BACRUP ONTROLS pa 2 3 ORACLE DATABASE SECURITY 3 1 3 1 OVERVIEW i ii i A Savane a 3 1 3 2 HARDENING i i i 3 1 3 3 AUTHENTICATION i ii e 3 1 3 4 AUTHORI ATION iii si ccd ibnu des notes Cou og aa codes B u 3 1 3 5 BNIE 3 2 3 6 SECURE DATABASE BACKUPS JI 3 4 3 7 SEPARATION OF Gadag 3 4 3 8 SECURING AUDIT INFORMATION ccccccecececececececececececececececseecececececececececececseeesesceeseeeecececececeeeceeececeeeeeeeeess 3 4 3 9 ADVANCED SECURITY bed a ta 3 4 DATABASE OPERATING ENVIRONMENT SECURITY ssscccsssssces
8. ORACLE 5 4 2 5 4 3 Oracle WebLogic Server includes demonstration private keys certificates and trusted certificate authorities that are not intended for use in production Usage of these keys in production is a security risk due to the free availability of private keys anyone who has a copy of the WebLogic Server has knowledge of the private keys and can compromise SSL TLS traffic Therefore e Use a local CA to issue certificates or e Use a root or intermediate CA like VeriSign Thawte etc to issue certificates Oracle Financial Services does not recommend the use of self signed certificates in production Consider avoiding the use of certificates with a MD5 signature usage of certificates with SHA 1 signatures is recommended Most root and intermediate CAs have begun phasing out the use of MD5 for signing certificates Enforce Security Constraints on Digital Certificates Oracle WebLogic Server performs certificate validation whenever it establishes an outbound SSL connection or when a two way SSL connection is established As part of certificate validation WebLogic Server checks if the certificate contains the Basic Constraints extension Ensuring the presence of the Basic Constraints extension will prevent attackers from generating new certificates to aid in website spoofing Ensure the check for Basic Constraints extension is enabled by verifying whether the following line is absent in the WebLogic Server startup command
9. SWITCH INTEGRATION GATEWAY 6 1 6 2 1 Usage of a Dedicated Channel ss 6 1 6 2 2 Usage of a Dedicated Server E EN EAE 6 1 6 3 SECURING THE LINK TO THE INTEGRATION GATEWAY 6 1 6 3 1 Usage of a se ure channel 6 1 DESKTOP SECURIT 7 1 7 1 APPLICATION OF SECURITY PATCHES poeta 7 1 7 2 THE BROWSER cicon ieee ia Oea ep eranen E EEI p aeaea S N Ea e ES 7 1 7 2 1 Hardening Internet Explorer i N EEE IN EEEE NEA 7 1 1 3 TERMINAL LOCKOUT POLICY 1 c ccsscees sseseebentenesatersuocsutsensvsdoresttestvseseshotessentsviesnesbeeatdensteonesnvenenssensebesdss 7 2 ORACLE FLEXCUBE INVESTOR SERVICING 5 8 1 8 1 OVERVIEW iii b a 8 1 SZ DISABLE LOGGING ii a 8 1 8 35 TRAIL REPORT i a a 8 1 SA SECURITY VIOLATION REPORT 8 1 8 4 1 Sieh on nonren E a A E T aa a 8 2 8 95 DISPLAY PRINT USER PROFLE p e 8 2 86 CLEAR USER PROFILE vere i A f 8 2 CHANGE USER PASSWORD a 8 2 8 8 LISTOFLOGGED INJUSERS xiii ii sa
10. Security Practices Guide Oracle FLEXCUBE Investor Servicing Release 12 0 3 0 0 April 2014 Part No E53392 01 ORACLE FINANCIAL SERVICES ORACLE Securitv Practices Guide 1 Ai mn Table of Contents ABOUT THIS MANDAL l 1 1 1 INTRODUCTION 1 1 1 1 1 Pa OTETA E AIRE PETEN EN l 1 1 1 2 Organization Of the document s issi iii iri se l 1 1 1 3 Glossary of sd 1 2 DATA CENTER PRACTICES 2 1 2 1 OVERVIEW sidi 2 1 2 2 PHY SICAL lt SYSTEM SECURITY a 2 1 2 3 MINIMIZE THE SERVER FOOTPRINT cccccccecececesecececesecececececcsecesscececesscssecessecsseesecesacesesssesesseseeeesseseeeeeeness 2 1 2 4 OPERATING SYSTEM USERS AND GROUPS 2 1 2 5 RESTRICT FILE SYSTEM ACCESS cccccccccccccscesecesecececececececesecesecesscecscesecscecesececsesseceescsseceesssuseesesesseeeeeeeaeeds 2 1 2 6 NETWORK PERIMETER PROTECTION ccccccccececesecececesecesecesecesecesscesseeseccseceseecssessacesecesecesssesseesesesesseeeeeeeess 2 2 2 1 NETWORK SERVICE PROTECTION cccccccccccccececesecececececesecssecececesscsescesecesesesecsssessesssasesesessususeeseseseeseeeeseeess 2 2 2 8 USAGE OF PROTECTED PORTS 2 2 2 9 INSTALLATION OF SOFTWARE IN PR
11. Users and Groups It is highly recommended to run the WebLogic Server as a limited user process The root user account in Unix Linux and the Administrator account in Windows should not be used to run WebLogic Server since they are privileged user accounts Other privileged accounts should also not be used to run the WebLogic server Hence it is preferable to create a limited user account say WebLogic Owner for running the application server Additional user accounts are not recommended in the eventuality that an additional account is required say if the WebLogic owner account is locked out one of the system administrator accounts can be used to remedy the situation Having two system administrator accounts is recommended as it always ensures backup 5 1 ORACLE 5 3 3 File Svstem Access to 5 Users 5 3 4 5 3 5 Access rights to the Oracle Home WebLogic Server product directory and the WebLogic domain directories should be provided only to the WebLogic Owner user Privileged users will anyway have access to the WebLogic Server installation by default Users in the Others category can be restricted from reading the afore mentioned directories Ensure that the following files in the WebLogic installation are available only to the WebLogic owner e security LDAP database which is usually located in the WL_HOME user_projects domains DOMAIN_NAME servers SERVER_NAME data ldap Idapfiles directory e The key
12. aa 8 2 8 9 CHANGE TIME LEVEL idrat a a 8 3 ORACLE 1 1 1 About this Manual Introduction This document describes the various measures and practices to be adopted with a deplovment of Oracle FLEXCUBE Investor Servicing to aid in securing the dav to dav operations of the svstem The document also describes in detail the security and audit features of Oracle FLEXCUBE Investor Servicing Audience The document is a prescriptive guide for application implementers system administrators and related IT personnel Organization of the document The document addresses the areas of installation configuration deployment and operation of Oracle FLEXCUBE Investor Servicing in the below described manner Chapter 1 About this Manual gives information on the intended audience It also lists the various chapters covered in this User Manual Chapter 2 Data Center Practices prescribes generally accepted practices for installing configuring and operating the software components of Oracle FLEXCUBE Investor Servicing in a data center Chapter 3 Oracle Database Security describes the measures to be undertaken to harden and secure the Oracle Database Server in the Oracle FLEXCUBE Investor Servicing installation Chapter 4 Database Operating Environment Security gives security recommendations for tightening Oracle file system security along with more general advice for ove
13. ackup of the Oracle directory excluding the database related files to be taken once in a month This media can be recycled bimonthly e When the database is huge incremental exports and on line tablespace backups are recommended The above strategy may be improvised by the Oracle DBA depending on the local needs The backup operations are to be logged and tapes to be archived in fireproof storages 2 3 ORACLE 3 1 3 2 3 3 3 4 3 Oracle Database Securitv Overview This section contains securitv recommendations for the Database Hardening Review database links in both production and development environments Unwanted links need to be dropped Authentication Middle tier applications logon to the database through application schemas rather than end user accounts Some individuals IT Administrators mav require direct access to the application database via their own schema This setting prevents the database from using an insecure logon protocol Make sure init ora contains REMOTE OS AUTHENT FALSE Following an installation the application database instance contains default open schemas with default passwords These accounts and corresponding passwords are well known and thev should be changed especiallv for a database to be used in a production environment Use the SQL Plus PASSWORD command to change a password SQL gt PASSWORD lt SCHEMA gt Metalink Patch note 4926128 contains a SQL script that will list
14. all open accounts with default password in your database In addition the password to the default accounts like SYS SYSTEM etc should be complex and securely stored by the bank Authorization The init ora parameter TRACE FILES PUBLIC grants file system read access to anyone who has activated SQL tracing Set this to its default value of False _TRACE_FILES_PUBLIC FALSE Set the init ora parameter 5 ROLES to False to prevent insecure remote roles 5 ROLES FALSE 3 1 ORACLE 3 5 Set O7 DICTIONARV ACCESSIBILITV to False to prevent users with Select ANY privilege from reading data dictionarv tables False is the default for the 10g database O7_DICTIONARY_ACCESSIBILITY FALSE Audit This section describes the auditing capabilities available in Oracle database These recommendations should not have a measurable performance impact In init ora set AUDIT TRAIL to DB OS or TRUE Consult with the Applications Database Administrator before setting this value to TRUE When set to OS the database stores its audit records on the file system AUDIT_TRAIL OS Set parameter AUDIT_FILE_DEST to the directory where the audit records should be stored When not set AUDIT FILE DEST defaults to SORACLE HOME rdbms audit In this example the database places audit records in directory E logs db audit AUDIT FILE DEST E logs db audit Restart the database for these parameters to take effect Note The da
15. annels will not prevent administrators from logging into the WebLogic Server administration console to take corrective actions Hence it is recommended to enable the use of the administration port Additionally employ firewall rules or WebLogic Connection Filters to restrict access to the Administration Port to trusted machines from where administrators can log in 5 3 ORACLE Do note that the Administration Port requires that SSL be enabled on every Managed Server Additionally the administration port will be common across all servers in the domain Further details on configuring the administration port can be found in the Administration Console Online Help guide in the Oracle WebLogic Server documentation 5 3 8 Secure the Embedded LDAP port In a WebLogic Server cluster restrict access to the embedded LDAP server port only to machines in the WebLogic Server cluster through the user of connection filters 5 3 9 Disable Remote Access to the JVM Platform MBean Server The MBean server provided by the JDK from JDK 5 onwards provides details in MBeans containing information about the JVM that is useful for monitoring the JVM process Besides the JVM s platform MBean server Oracle provides three other MBean servers the Domain Runtime MBean server Runtime MBean server and the Edit MBean server It is possible to configure the Runtime MBean server that is available on each managed server as the platform MBean server allow
16. begin bv focusing on the following e Username Oracle Username e Terminal Machine from which the user originated e Timestamp Time the action occurred e Object Owner The owner of the object that the user touched e Object Name of the object that the user touched e Action Name The action that occurred against the object INSERT UPDATE DELETE SELECT EXECUTE Archive and purge the audit trail on a regular basis at least every 90 days The database connection entries take up significant space Backup the audit file before purging Audit data may contain confidential or privacy related data Restrict audit trail access appropriately It must be noted that auditing features can impose a significant performance overhead Auditing should thus be limited to the set of items outlined above Auditing application schema objects should be strictly avoided 3 3 ORACLE 3 6 3 7 3 8 3 9 Secure Database Backups RMAN secure backup should be used to ensure that the backups stolen from vour svstem cannot be restored in another remote system Additionally data masking a feature offered by Oracle Enterprise Manager can be used to move data from your production environment to a test environment Both these are very crucial steps towards securing confidential customer data The database backups should be stored for the required period as per the regulations and bank s history retention policies These backups
17. c cluster will result in boot failures for managed servers 5 5 ORACLE 5 4 4 5 4 5 5 4 6 5 4 7 5 4 8 Impose Size and Time Limits on Messages Consider enforcing constraints on size and on the amount of time taken for a message to arrive at the server This will ensure protection against denial of service attacks against WebLogic Server Additional details are provided in the Oracle WebLogic Server documentation in the guide Securing a Production Environment and also in the Administration Console Online Help Oracle Financial Services recommends that changes once done in this regard be tested thoroughly for impact on business continuity it is quite possible that WebLogic Server receive valid messages that are large enough to be considered as an attack when such is not the case Restrict the Number of Open Sockets Consider limiting the number of sockets opened by WebLogic Server to prevent some forms on denial of service attacks Further details are available in the Oracle WebLogic Server documentation in the guide Securing a Production Environment and also in the Administration Console Online Help Oracle Financial Services recommends that changes once done in this regard be tested thoroughly for impact on business continuity the number of sockets opened is dependent entirely on system load which is bound to vary across time and also across installations Configure WebLogic Server to Ma
18. desired bv the financial institution possible restrict access to the operating svstem users who absolutelv need the mail facilitv from the shell e Remote Access Use secure shell ssh to access middle tier and database hosts This replaces telnet rsh rlogin rcp and ftp The following services may provide operational convenience e NTP Network Time Protocol for synchronizing the clock on the UNIX hosts to provide accurate audit records and simplify trouble shooting e CRON for operating system cleanup and log file rotation Authentication Good security requires secure accounts e Make sure that all OS accounts have a non guessable password To ensure that the passwords are not guessable use crack or john the ripper password cracking tools on a regular basis Often people use passwords associated with them license plate numbers children s names or a hobby A password tester may check for these In addition change passwords from time to time e Automatically disable accounts after several failed login attempts e files weaken security e fewer people with root access the easier it is to track changes e The root password must be a strong non guessable password In addition change the root password every three 3 months and whenever an administrator leaves company Always logout of root shells never leave root shells unattended e Limit root to console login only specified in etc securit
19. e machines Minimize the Server Footprint Each logical software component Application Server Database Server etc in the installation should preferably operate in a dedicated server It is not recommended to operate multiple services like mail FTP LDAP etc on the same server unless absolutely necessary It is preferable to customize the operating system installation so that only the minimum set of software components is installed Development tools should not be installed on the production servers In cases where a software package should be compiled and built before installation it is advisable to perform the build process on a separate machine following which installation of the binary can be performed on the server Samples and demos should not be deployed on a production server since they are bound to be developed without considering security Any bugs in such software can be exploited by an attacker resulting in a security incident Operating System Users and Groups It is recommended to minimize the number of user accounts on the host for easier auditing and management Besides it reduces the risk of unauthorized personnel accessing the server It is recommended to create user accounts with names that are not easily guessable There should be at least two system administrator accounts for a server to ensure backup in the eventuality of one account being locked Passwords for all accounts should be strong passwords this
20. erver Securitv Overview This section describes how to secure the Oracle WebLogic Server production environment that hosts the Oracle FLEXCUBE Investor Servicing environment Installation of Oracle WebLogic Server By default Oracle WebLogic Server is installed with a JDK and several development utilities These are not required in a production environment The installation footprint of Oracle WebLogic Server can be reduced via the following measures e During installation of Oracle WebLogic Server customize the components to be installed The following components are not required by Oracle FLEXCUBE Investor Servicing in a production environment e Oracle WebLogic Workshop e Web 2 0 HTTP Pub Sub Server e Third Party JDBC Drivers for MySQL and Sybase e WebLogic Server examples e Delete the Pointbase database which is not required for production usage Securing the WebLogic Server installation Once installed the measures listed below can be employed to secure the WebLogic Server installation 5 3 1 Network perimeter protection It is highly recommended to employ the use of a firewall as hardware or software to lockdown the network access to the WebLogic cluster For additional information on planning the firewall configuration for a WebLogic Cluster refer to the section Security Options for Cluster Architectures in the Using Clusters guide of the Oracle WebLogic Server documentation 5 3 2 Operating System
21. ervice packs be tested for impact on business continuity Hardening the Browser Oracle FLEXCUBE Investor Servicing is certified for usage in Microsoft Internet Explorer version 7 or 8 Firefox 3 Google Chrome Safari 4 x Opera 10 x Each of these browsers provide recommendations from a security perspective and customers are encouraged to employ the recommendations provided by them In all browsers it is recommended to enable the popup blocker with a specific rule to disable popup blocking for the FLEXCUBE UBS web application Hardening Internet Explorer For Internet Explorer specifically Microsoft has provided guidance for enhancing Internet Explorer security in the following documents for the respective versions of the browsers e Internet Explorer 7 Desktop Security Guide e Internet Explorer 8 Desktop Security Guide Customers are encouraged to employ the recommendations provided by Microsoft in the above mentioned guides Among the guidelines provided in these documents Oracle Financial Services specifically recommends the following settings to all customers of FLEXCUBE UBS e Certificate Security Ensure the usage of SSL 3 0 and TLS 1 0 Disable SSL 2 0 as it is an insecure protocol e Privacy Settings Set Form autocomplete options to Disabled This will prevent inadvertent caching of data keyed by users Application of the following recommendations from Microsoft is not recommended 7 1 ORACLE 7 3 e Privacy Sett
22. ervlet ServietServiet does not exist in the web xml of the Oracle FLEXCUBE Investor Servicing web application lt servlet gt lt servlet name gt ServletServlet lt servlet name gt lt servlet class gt weblogic servlet ServletServlet lt servlet class gt lt servlet gt 5 8 ORACLE lt servlet mapping gt lt servlet name gt ServletServlet lt servlet name gt lt url pattern gt myservlet lt url pattern gt lt servlet mapping gt 5 9 ORACLE 6 1 6 2 6 Securing the Switch Integration Gatewav Overview Oracle FLEXCUBE Investor Servicing supports communication with external channels one of them being ATM switches The below listed set of measures are recommended for securing the communication between the ATM switch and the Switch Integration Gateway of Oracle FLEXCUBE Investor Servicing Securing the link to Switch Integration Gateway The ATM Switch communicates with the Switch Integration Gateway of FLEXCUBE Investor Servicing using the ISO 8583 protocol over a TCP IP channel The following measures are recommended to secure this link 6 2 1 Usage of a Dedicated Channel It is recommended to have a dedicated private link between the ATM switch and the Switch Integration Gateway of FLEXCUBE Investor Servicing 6 2 2 Usage of a Dedicated Server 6 3 It is recommended to have the Switch Integration Gateway deployed on a separate machine Additionally access to this machine is to be controlled in accorda
23. he FLEXCUBE UBS user is still logged in Hence organizations are expected to set a corporate policy for handling unattended PC sessions it is recommended to enable the feature to lock workstations or to enable password protected screensavers 7 2 ORACLE 8 1 8 2 8 3 8 4 8 Oracle FLEXCUBE Investor Servicing Controls Overview This chapter describes the various programs available within Oracle FLEXCUBE to help in the maintenance of securitv Access to the svstem is possible oniv if the user logs in with a valid ID and the correct password The activities of the users can reviewed the Securitv Officer in the Event Log and the Violation Log reports Disable Logging It is recommended that the debug logging facility of the application be turned off once the system is in production This is achieved by updating the property file of the application via the Oracle FLEXCUBE UBS Installer The above described practice does not disable logging performed by the application in the database tier This can be disabled by running the lockdown scripts provided The lockdown scripts will disable logging across all modules and across all users in the system Audit Trail Report A detailed Audit Trail is maintained by the system on all the activities performed by the user from the moment of login This audit trail lists all the functions invoked by the user along with the date and time The program reports the activities begin
24. he server must provide Disable all services that are not needed to serve a justified business need Review the network services like mail and directory services running on the servers to ensure that they are adequately protected from abuse by an attacker Also review and limit the network file shares on the servers to reduce the risk of an attack on the file system It is recommended to share files and directories on servers only to trusted machines in the network Usage of Protected Ports It is not recommended to execute long processes like application servers and database servers under the root account since a compromise of such processes will result in an attacker gaining elevated privileges Therefore limit the use of protected ports port numbers less than 1024 on UNIX like operating systems since they require the use of a privileged user account in most cases this is only the root account Consider the use of NAT to map protected ports to unprotected ones Installation of Software in Production Mode It is highly recommended to install production builds of any software on production servers For example Oracle WebLogic Server should be installed in the production mode as opposed to the default of development mode The Oracle Database Server should be installed with options required for production usage for instance do not install the sample schemas Moreover it is highly recommended to refer to the manuals and documen
25. ing JMX clients to access not only the JVM MBeans but also the WebLogic Server MBeans If the Runtime MBean server of WebLogic has been configured as the platform MBean server enabling remote access creates an access path that is no longer secured by the WebLogic Server Security Framework but instead by the security features of the Java platform alone In such a case where remote access to the platform MBean server and the runtime MBean server is required it is recommended that JMX clients access the MBeans via the Runtime MBean server Oracle Financial Services recommends that changes once done in this regard be tested thoroughly for impact on business continuity 5 3 10 Precautions when using SNMP It is recommended to refer the WebLogic SNMP Management Guide to configure SNMP agents in Oracle WebLogic Server Due care must be observed over the usage of SNMP v1 and v2 since passwords are sent over clear text in these older version of the protocol Additional steps required for securing SNMP v3 communication are outlined in the guide Oracle Financial Services recommends that changes once done in this regard be tested thoroughly for impact on business continuity 5 4 Securing the WebLogic Security Service You need to ensure the following 5 4 1 Enable SSL but avoid using Demonstration Certificates Enable the use of SSL so that the servers can be accessed via the SSL listen ports for all supported protocols including HTTPS 5 4
26. ings Empty Temporary Internet Files Folder When Browser is closed Oracle FLEXCUBE UBS relies heavily on client side caching performed by Internet Explorer using this folder The application will behave slowly after this setting is enabled since the browser will download resources from the server after every browser restart Hence it is not recommended to enable this setting It should be noted that the details of transactions performed by the FLEXCUBE UBS users are not cached in the Temporary Internet Files folder irrespective of this setting e Other Security Recommendations Do not Save encrypted pages to disk By default Internet Explorer stores both encrypted and unencrypted content in the Temporary Internet Files folder Enabling this setting is bound to cause performance issues especially when FLEXCUBE UBS is accessed over HTTPS since the browser will no longer cache resources As stated before details of transactions performed by users will not be cached in the Temporary Internet Files folder irrespective of this setting Terminal Lockout Policy Oracle Financial Services recommends that a terminal lockout policy be put in place to automatically lockout unattended PC sessions after a certain duration This is primarily because Oracle FLEXCUBE UBS will not lock out the browser session although it does expire the browser session after certain period of inactivity Users may however be able to access unattended sessions while t
27. le WebLogic Server 10 3 Generally Oracle FLEXCUBE Investor Servicing employs its own protection mechanisms with respect to user lockouts Enable Configuration Auditing Configuration auditing can be enabled to ensure that changes to any WebLogic resource configuration in the WebLogic domain are audited Enabling this option also allows for auditing of management operations performed by a user on any WebLogic resource 5 6 ORACLE For additional details refer to the Administration Console Online Help and the Configuring WebLogic Security Providers section in the Securing WebLogic Server guide of the Oracle WebLogic Server documentation Note that enabling configuration auditing will affect the performance of the system even though auditing may be enabled for auditing a few events including configuration changes 5 4 9 System Administrator Accounts Create at least two system administrator accounts WebLogic user accounts for administration of the WebLogic server The first administrator account will be created when the WebLogic domain is created Create the second account with the Admin security role Provide unique names to the administrator accounts that cannot be easily guessed Oracle Financial Services discourages naming the WebLogic administrator account as weblogic with a password of weblogic Again having two system administrators ensures that at least one system administrator has access to the WebL
28. me 8 2 ORACLE 8 9 Change Time Level Time levels have to be set for both the svstem and the users Ten time levels are available 0 to 9 Restricted Access can be used to set the Users time level The Change Time Level function can be used to do the same for the branch A user will be allowed to sign on to the svstem oniv if his her time level is equal to or higher than the svstem time level This concept is useful because timings for system access for a user can be manipulated by increasing the system time level For e g the End of Day operators could be allotted a time level of 1 and the users could be allotted a time level of 0 If the application time level is set at 1 during End of Day operations only the End of Day operators will have access to the application The other users will be denied access 8 3 ORACLE ORACLE Securitv Practices Guide April 2014 Version 12 0 3 0 0 Oracle Financial Services Software Limited Oracle Park Off Western Express Highway Goregaon East Mumbai Maharashira 400 063 India Worldwide Inquiries Phone 91 22 6718 3000 Fax 91 22 6718 3001 www oracle com financialservices Copyright 2007 2014 Oracle and or its affiliates All rights reserved Oracle and Java are registered trademarks of Oracle and or its affiliates Other names may be trademarks of their respective owners U S GOVERNMENT END USERS Oracle programs including any operating system integrated software a
29. n be protected by encryption algorithms An encryption algorithm transforms information into a form that cannot be deciphered without a decryption key Oracle Advanced Security supports multiple industry standard encryption algorithms such as RC4 DES3 and Triple DES To ensure the integrity of data packets during transmission Oracle Advanced Security can generate a cryptographically secure message digest using MD5 or SHA 1 hashing algorithms and include it with each message sent across a network 3 4 ORACLE 4 1 4 2 4 Database Operating Environment Securitv Overview The environment in which Oracle Applications run contributes to or detracts from overall system security This section contains security recommendations for tightening Oracle file system security along with more general advice for overall system hardening Hardening The directory ORACLE_HOME bin contains Oracle executables Check that the operating system owner of these executables matches the operating system user under which the files have been installed A typical mistake is to install the executables in user oracle s directory but owned by root Prevent remote login to the Oracle and root accounts Instead require that legitimate users connect to their own accounts and su to the Oracle account Better yet use sudo to restrict access to executables Refer to the product installation documentation for the complete instructions on setting file permissions
30. nage Overload Oracle WebLogic Server can be configured to detect avoid and recover from overload conditions Configuring WebLogic Server to manage overload conditions allows for WebLogic Server administrators to connect to it and take remedial actions Further details on this topic are available in the Oracle WebLogic Server documentation in the guide Securing a Production Environment and also in the Administration Console Online Help Oracle Financial Services recommends that changes once done in this regard be tested thoroughly for impact on business continuity the definition of an overload condition depends on the system capabilities therefore overload conditions are bound to be defined differently for machines of differing capabilities User Lockouts and Login Time Limits The Oracle WebLogic Server guide on Securing a Production Environment has a section on configuring user lockouts and login time limits to prevent attacks on user accounts In general Oracle FLEXCUBE Investor Servicing does not utilize the WebLogic Security Service for managing FLEXCUBE Investor Servicing user accounts Therefore changes recommended by the WebLogic Server guide should be applied only after assessing the impact on production The changes applied would be suitable for accounts managed by Oracle WebLogic Server Note that the WebLogic Server Online Console guide will reference Compatibility Security which is deprecated in Orac
31. nce with the data center practices Securing the Link to the Integration Gateway The Switch Integration Gateway communicates with the Integration Gateway of FLEXCUBE Investor Servicing Transport level security can be employed to secure this link as described 6 3 1 Usage of a secure channel The Switch Integration Gateway can be configured to communicate with the Integration Gateway over the T3S protocol instead of the T3 protocol It is recommended to employ T3S due to the usage of TLS SSL to encrypt the communication passing through the channel Additional information on the same can be obtained from the configuration document titled Switch Interface Installation with SSL Configuration Document 6 1 ORACLE 7 1 7 2 7 2 1 7 Desktop Security Application of Security Patches Oracle Financial Services highly recommends the following e Browsers should be upgraded whenever newer versions are released for they often include new security features Additionally in built security features of browsers should not be turned off e Security patches issued by the Operating System vendor should be applied regularly e Updates to anti virus software and anti spyware programs should be applied regularly e Security Updates to other environmental software like Microsoft Core XML Services MSXML should be applied regularly Additionally it is recommended that major upgrades such as browser upgrades and Operating System s
32. ning with the last one It can be displayed or printed The records can be optionally purged once a printout is taken This program should be allotted only to the Security Officer Security Violation Report This program can be used to display or print the Violation Report The report gives details of exceptional activities performed by a user during the day The difference between the Violation Report and the Audit Trail is that the former gives details of all the activities performed by the users during the day and the latter gives details of exceptional activities for e g forced password change unsuccessful logins User already logged in etc The details given include e Time e name of the operator of the function e The ID of the terminal e message giving the reason for the login The system gives the Security reports a numerical sequence The Security Report includes the following messages 8 1 ORACLE 8 4 1 Sign on Messages 8 5 8 6 8 7 8 8 Message Explanation User Already Logged In The user has already logged into the system and is attempting a login through a different terminal User ID Password is An incorrect user ID or password was entered wrong User Status is Locked The user profile has been disabled due to an excessive number of Please contact vour attempts to login using an incorrect user ID or password The Svstem Administrator number of attempts could ha
33. ny programs installed on the hardware and or documentation delivered to U S Government end users are commercial computer software pursuant to the applicable Federal Acquisition Regulation and agency specific supplemental regulations As such use duplication disclosure modification and adaptation of the programs including any operating system integrated software any programs installed on the hardware and or documentation shall be subject to license terms and license restrictions applicable to the programs No other rights are granted to the U S Government This software or hardware is developed for general use in a variety of information management applications It is not developed or intended for use in any inherently dangerous applications including applications that may create a risk of personal injury If you use this software or hardware in dangerous applications then you shall be responsible to take all appropriate failsafe backup redundancy and other measures to ensure its safe use Oracle Corporation and its affiliates disclaim any liability for any damages caused by use of this software or hardware in dangerous applications This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws Except as expressly permitted in your license agreement or allowed by law you may not use copy reproduce translate broadcast modify
34. ogic server in the event of the other being locked out 5 4 10 Setting up Secure Flag for Cookies If the secure flag is set on a cookie then browsers will not submit the cookie in any requests that use an unencrypted HTTP connection thereby preventing the cookie from being trivially intercepted by an attacker monitoring network traffic Below configuration has to be ensured in weblogic xml within the deployed application ear 1 Cookies are set with Http only as true 2 Cookie secure flag set to true 3 Cookie path to refer to deployed application lt wils session descriptor gt lt wls cookie http only gt true lt wis cookie http only gt lt wls session descriptor gt lt wis session descriptor gt lt wls cookie secure gt true lt wls cookie secure gt lt wis url rewriting enabled gt false lt wls url rewriting enabled gt lt wls session descriptor gt lt session descriptor gt lt cookie name gt JSESSIONID lt cookie name gt lt cookie path gt lt DeployedApplicationPath gt lt cookie path gt lt cookie http only gt true lt cookie http only gt lt cookie secure gt true lt cookie secure gt lt url rewriting enabled gt false lt url rewriting enabled gt lt session descriptor gt Always make sure Cookies are set with always Auth Flag enabled by default for WebLogic server and also recommended to apply the weblogic patch 10 3 5 for versions using below weblogic 10 3 5 to reflect the above changes 5 7 ORA
35. ormed for every managed server e order of cipher suites is important Oracle WebLogic Server chooses the first available cipher suite in the list that is also supported by the client e Cipher suites with RC4 are enabled despite it being second best to AES This is primarily for older clients that do not support AES for instance Microsoft Internet Explorer 6 7 and 8 on Windows XP e Cipher suites using Triple DES 3DES are not listed since the maximum effective security provided by the algorithm is 112 bits Usage of WebLogic Connection Filters Although firewalls restrict the ability of machines to communicate with the WebLogic Server machines in the data center can still access network services provided by the WebLogic Server Configure the Oracle WebLogic Server installation to use connection filters to ensure that only certain machines in the data center can access the WebLogic Server services like HTTP LDAP RMI IIOP etc Usage of Domain wide Administration Port for Administrative Traffic When Oracle WebLogic Server is configured to enable administrative access via the administration port data is exchanged over SSL preventing any attacker from sniffing sensitive information about the WebLogic Server configuration Furthermore once the Administration port is enabled WebLogic Server will serve administration requests on a dedicated port with dedicated resources A denial service attack mounted on the HTTP HTTPS ch
36. ould preferably contain records of violations to reduce the amount of noise in the logs Administrators should ensure sufficient disk space for the audit log Additionally administrators should factor the increase on server load due to auditing being enabled Separation of Concerns It is not recommended to perform development of any kind on a production machine The standard practice is to establish a separate development environment for developers isolated from the testing staging and production environments Additional environments can be created for other purposes for instance a post production support environment Backup Controls Back ups should be taken regularly This will minimize downtime if there is an emergency Access to the application areas should not be at the operating system level On line archival of redologs should be set up from the date of going live It is recommended that e Backup of all database related files viz data files control files redologs archived files init ora config ora etc should be taken at the end of the day e The tape can be recycled every week by having day specific tapes e On line backup of archived redo log files onto a media to achieve to the point recovery in case of crash shutdown etc recycled every day e Complete export of database and softbase should be done atleast once in a week and this can be stored off site media can be recycled in odd and even numbers e Complete b
37. rall system hardening Chapter 5 Application Server Security describes the measures to be undertaken to harden and secure the Oracle WebLogic Server in the Oracle FLEXCUBE Investor Servicing installation Chapter 6 Securing the Switch Integration Gateway describes the measures recommended for securing communication between the ATM switch and the Switch Integration Gateway of Oracle FLEXCUBE Investor Servicing Chapter 7 Desktop Security provides information about practices to be employed for client workstations Chapter 8 Oracle FLEXCUBE Investor Servicing Controls provides information about controls within the product Conventions Used in this Manual Important information is preceded with the symbol 1 1 ORACLE 1 1 3 Glossary of Icons This User Manual refer to all or some of the following icons lcons Function Exit I Delete row ail Option List Refer the Procedures User Manual for further details about the icons ORACLE 2 1 2 2 2 3 2 4 2 5 2 Data Center Practices Overview The following guidelines are recommended to secure the host servers Application Server Database Server and others in an installation of Oracle FLEXCUBE Investor Servicing Phvsical Svstem Securitv It is highly recommended to operate servers in secured data center to prevent unauthorized users or operating personnel from tampering with th
38. s themselves SQL gt AUDIT ALTER ANY ROLE by ACCESS Audit alter any role statements SQL gt AUDIT ALTER DATABASE by ACCESS Audit alter database statements SQL gt AUDIT ALTER SYSTEM by ACCESS Audit alter system statements 3 2 ORACLE SQL gt AUDIT CREATE ROLE by ACCESS Audit create role statements SQL gt AUDIT DROP ANY ROLE by ACCESS Audit drop any role statements SQL gt AUDIT PROFILE by ACCESS Audit changes to profiles SQL gt AUDIT PUBLIC SYNONYM by ACCESS Audit public synonyms statements SQL gt AUDIT SYSDBA by ACCESS Audit SYSDBA privileges SQL gt AUDIT SYSOPER by ACCESS Audit SYSOPER privileges SQL gt AUDIT SYSTEM GRANT by ACCESS Audit System grant privileges Connections to the database as well as SYSDBA and SYSOPER actions instance startup shutdown are always logged to the directory SORACLE HOME rdbms audit unless AUDIT_FILE_DEST property is overridden This file contains the operating system user and terminal ID If AUDIT TRAIL is set to OS review audit records stored in the file name in AUDIT_FILE_DEST lf AUDIT TRAIL is set to DB retrieve audit records from the SYS AUD table The contents can be viewed directly or via the following views e DBA_AUDIT_EXISTS e AUDIT e AUDIT SESSION e AUDIT STATEMENT e AUDIT TRAIL e AUDIT OPTS e PRIV AUDIT OPTS e SIMT AUDIT OPTS The audit trail contains a lot of data
39. should be securely stored and access should be controlled to authorized users only Separation of Roles It is vital to ensure that roles and responsibilities of database administrators and application users administrators are clearly segregated Database administrators should not be allowed to view or access customer data Oracle Database vault helps to achieve this separation of duty by creating different realms factors and rule sets It can enforce policies that prevent a DBA from accessing an application realm The product has a set of configuration policies that can be directly implemented with database vault Implementation specific requirements can be imposed over and above these Securing Audit Information Oracle Audit vault is an audit solution that consolidates detects monitors alerts and reports n audit data for security auditing an compliance Oracle Audit vault provides mechanisms to collect audit data from various oracle database It helps to consolidate audit data from multiple systems into a single centralized repository Thus DBA s of individual systems will not be able to tamper with audit information of their respective databases Advanced Security Oracle Advanced Security provides industry standards based data privacy integrity authentication single sign on and access authorization in a variety of ways Sensitive information that is stored in your database or that travels over enterprise networks and the Internet ca
40. ssscccssssccscssscccsssscccesssecsessscsecess 4 1 4 1 OVERVIEW iii Ea oD ge 4 1 4 2 l DENEA BI ee 4 1 4 3 AUTHENTICATION Ii ii E 4 2 4 4 AUTHORIZATION EEAS 4 3 4 5 i 4 3 APPLICATION SERVER SECURITY 5 1 5 1 OVERVIEW i isir ku aa 5 1 5 2 INSTALLATION OF ORACLE WEBLOGIC SERVER cccccccccececececccecccececececscccesececeescecsceesseeeseesseesseesseuseseneseass 5 1 5 3 SECURING THE WEBLOGIC SERVER INSTALLATION ccccccccececececececececececececececeeecececececececececeeeseeeseeseeeeeeeess 5 1 5 3 1 Network perimeter protection 5 1 2 3 2 Operating System Users and GrOUpS 5 1 3 3 3 File System Access to OS US rS ccccssccesscesssecesceensecesntecssecesncecsaecseneecsaeceuneecsaeeesaeecsaeeeeneesaeeseneeesaeeesnes 5 2 5 3 4 Usage of Protected POrtsiisiiisiisiezjetabiienieeneigieeio pie OE 5 2 5 3 5 Choice of the SSL cipher Suite 5 2 5 3 6 Usage of WebLogic Connection Filters 5 3 ORACLE 23 7 Usage of Domain wide Administration Port for Administrative Traffic ss 5 3 5 3 8 Secure the Embedded LDAP 5 4 5 3 9 Disable Remote Access to the JVM Platform MBean 5 4 5 3 10 Precautions when
41. store used in the keystore configuration of the server s e The Root Certificate Authority keystore Oracle WebLogic Server provides persistent stores for several subsystems some of which are utilized by Oracle FLEXCUBE Investor Servicing Ensure that access to the persistent file stores based on files is restricted to the WebLogic owner OS user The default persistent file store is located in the datalstoreldefault directory under the servername subdirectory under the WebLogic domain s root directory If custom user defined persistence stores have been created the same restrictions should be applied on the files and directories used by such stores Usage of Protected Ports In the case of Oracle WebLogic Server e Operate WebLogic Server using an unprivileged account bind to unprotected ports and use NAT to map protected ports to the unprotected ports e Configure WebLogic Server to start with a privileged account bind to protected ports and then change the user account to an unprivileged user account For this purpose Oracle WebLogic Server on UNIX needs to be configured to have a post bind user ID or group ID For additional details refer to the section Create and configure machines to run on UNIX in the Administration Console Online Help Choice of the SSL cipher suite Oracle WebLogic Server allows for SSL clients to initiate a SSL connection with a null cipher suite The null cipher suite does not employ any bulk encr
42. tabase generates some audit records by default whether or not AUDIT TRAIL is enabled For example automaticallv creates an operating svstem file as an audit record when a user logs in as SYSDBA or as INTERNAL Monitoring and auditing database sessions provides valuable information on database activitv and is the only way to identify certain types of attacks for example password guessing attacks on an application schema By auditing database sessions suspicious connections to highly privileged schemas may be identified To audit sessions login through sqlplus as SYSTEM and issue the following command SQL gt audit session Audit any changes to the standard FCIS database schema or creation of new schemas As rare events these changes may indicate inappropriate or malicious activity To audit schema changes login through sqlplus as SYSTEM and issue the following command SQL gt audit user To complete the recommended auditing enable three other audit events create database link alter system and system audit The remaining audit options generate significant entries of little value Auditing these other actions provides little meaningful information To audit the other events login through sqlplus as SYSTEM and issue the following commands SQL gt AUDIT DATABASE LINK Audit create or drop database links SQL gt AUDIT PUBLIC DATABASE LINK Audit create or drop public database links SQL gt AUDIT SYSTEM AUDIT Audit statement
43. tation provided by the software supplier for installing and operating such software securely in a production environment Software Updates and Patches It is recommended to subscribe to security bulletins and advisories published by software vendors to ensure that critical servers are always up to date 2 2 ORACLE 2 11 2 12 2 13 2 14 Oracle Financial Services recommends that patches be tested to ensure that they do not conflict with the normal operation of the system Usage of Security Appliances and Software Consider the usage of security appliances and software to monitor and ensure that the production environment continues to be secure after the process of server preparation Intrusion Detection Systems can be employed to monitor for security sensitive changes in the system and alert personnel Antivirus scanners can be used to prevent the server s from being compromised Note that although UNIX like operating systems may have better defenses against viruses and other malware consider running antivirus scanners on servers regardless of the OS Configure Security Auditing Most server operating systems Linux OS with kernel version 2 6 onwards IBM AIX Microsoft Windows Server 2003 etc allow for auditing file and directory access Oracle Financial Services recommends enabling this feature in order to track file system access violations It is not recommended to enable audit for normal file access operations audits sh
44. using 5 5 4 5 4 SECURING THE WEBLOGIC SECURITY 5 4 5 4 1 Enable SSL but avoid using Demonstration Certificates 5 4 5 4 2 Enforce Security Constraints on Digital Certificates 5 5 5 4 3 Ensure that Host Name Verification is Enabled 5 5 5 4 4 Impose Size and Time Limits Messages sse smeemennnnnnknnnznnnznnnznnznnzznnnznznznznznznnzznnzznnzznnnznnz za 5 6 5 4 5 Restrict the Number of Open SOockets ss 5 6 5 4 6 Configure WebLogic Server to Manage 5 6 5 4 7 User Lockouts and Login Time 5 6 5 4 8 Enable Configuration Auditing sms nsara nanna nanna trans sa 5 6 5 4 9 System Administrator ACCOUNES 5 7 5 4 10 Setting up Secure Flag for Cookies cicirine iiaa o a a EEA 5 7 5 5 SECURING THE ORACLE FLEXCUBE INVESTOR SERVICING APPLICATION 5 8 5 5 1 Enforce the Usage of SSE p a OE Aa E RE 5 8 5 5 2 Ensure the Servlet Servlet is Disabled 5 8 SECURING THE SWITCH INTEGRATION GATEWAY 6 1 6 1 OVERVIEW cobaentevecveusechavsteoneugen sessesvasevuagevseshegiesnes sdenseseedbedee igencevteses 6 1 6 2 SECURING THE LINK TO
45. v e Root and only root should have UID 0 e Check root files for security holes The root files SHOULD have 700 or 600 permissions e umask for root is 022 rwxr xr x A umask of 077 rwx is best but often not practical e To avoid trojan horse programs always use full pathnames including aliases Root should NEVER have in path e NEVER allow non root write access to any directories in root s path e f possible do not create root s temporary files in publicly writable directories Do not share user accounts Remove or disable user accounts upon termination Disable login for well known accounts that do not need direct login access bin daemon sys uucp adm Require strong passwords and in some cases a restricted shell It is hard to imagine what kind of guests should have access to a production system For this reason do not allow guest access 4 2 ORACLE 4 4 4 5 Authorization Only run NFS as needed apply latest patches When creating the etc exports file use limited access flags when possible such as readonly or nosuid By using fully qualified hostnames only the named host may access the file system Device files dev null dev tty and dev console should be world writable but NEVER executable Most other device files should be unreadable and non writable by regular users Always get programs from a known source Use a checksum to verify they have not been altered
46. ve matched either the successive or cumulative number of login failures configured for the svstem Displav Print User Profile This function provides an on line displav print of user profiles and their access rights The information includes e The type customer staff e status of the profile enabled or disabled or on hold e time of the last login e date of the last password status change e The number of invalid login attempts e The language code home branch of the user Clear User Profile A user ID can get locked into the system due to various reasons like an improper logout or a system failure The Clear User Profile function can be run by another user to reset the status of the user who got locked in This program should be used carefully and conditionally Change User Password Users can use this function to change their passwords A user password should contain a minimum of six characters and a maximum of twelve characters both parameterizable It should be different from the current and two previous passwords The program will prompt the user to confirm the new password when the user will have to sign on again with the new password List of Logged in Users The user can run this program to see which users are in use within Oracle FLEXCUBE at the time the program is being run The information includes the following e The ID of the terminal e The ID of the user e login ti
47. yption algorithm thus resulting in transmission of all data in clear text over the wire The default configuration of Oracle WebLogic Server is to disable the null cipher suite Ensure that the usage of the null cipher suite is disabled preventing any client from negotiating an insecure SSL connection Furthermore for installations having regulatory requirements requiring the use of only high cipher suites Oracle WebLogic Server can be configured to support only certain cipher suites The restriction can be done in config xml of the WebLogic domain Provided below is an example config xml restricting the cipher suites to those supporting 128 bit symmetric keys or higher and using RSA for key exchange lt ssl gt 5 2 ORACLE 5 3 6 5 3 7 lt enabled gt true lt enabled gt lt ciphersuite gt TLS_RSA_WITH_AES_ 256 CBC_SHA lt ciphersuite gt lt ciphersuite gt TLS_RSA_WITH_AES_ 128 CBC_SHA lt ciphersuite gt lt ciphersuite gt TLS_RSA_WITH_RC4_128 SHA lt ciphersuite gt lt ciphersuite gt TLS_RSA_WITH_RC4_128 MD5 lt ciphersuite gt lt ssl gt Note the following e Configuration of WebLogic Server to support the above defined cipher suites might also require an additional command line argument to be passed to WebLogic Server so that a FIPS 140 2 compliant crypto module is utilized This is done by adding Dweblogic security SSL nojce true as a JVM argument e restriction on cipher suites needs to be perf
Download Pdf Manuals
Related Search