Security Bulletin
Summary
Vulnerabilities in Apache Log4j could result in a denial of service or remote code execution. These vulnerabilities may affect the Help system in IBM Spectrum Protect Operations Center. The below fix packages include Apache Log4j 2.17
Vulnerability Details
CVEID: CVE-2021-45105
DESCRIPTION: Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process.
Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-45046
DESCRIPTION: Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Spectrum Protect Operations Center | 8.1.0.000-8.1.13.100 7.1.0.000-7.1.14.100 |
Remediation/Fixes
IBM strongly recommends addressing this vulnerability now by upgrading to the fixed level instead of using the manual process described under Workarounds and Mitigations section.
Note: The below fix packages include Log4j 2.17.
| IBM Spectrum Protect Operations Center Affected Versions | Fixing Level | Platform | Link to Fix and Instructions |
8.1.0.000-8.1.13.100 | 8.1.13.200 | AIX Linux Windows | https://www.ibm.com/support/pages/node/6527288 |
|
7.1.0.000-7.1.14.100 | 7.1.14.200 | AIX Linux Windows | https://www.ibm.com/support/pages/node/6527284 |
Workarounds and Mitigations
Manual Procedure to Update the Help system
The Help system shipped along with the Operations Center includes the affected log4j versions. To manually update the Help system:
1. Download the following from Apache:
Apache Log4j 2 binary(zip) apache-log4j-2.17.0-bin.zip
https://logging.apache.org/log4j/2.0/download.html
2. Stop the Operations Center service (which also stops the Help system)
AIX - /opt/tivoli/tsm/ui/utils/stopserver.sh
Linux -
8.1.9 and Lower (including v7) - service opscenter.rc stop
8.1.10 and higher - systemctl stop opscenter.service
Windows - From the Services window, stop the IBM Spectrum® Protect Operations Center service.
3. Unzip the apache-log4j-2.17.0-bin.zip
4. From the unzipped directory apache-log4j-2.17.0-bin copy the log4j2.17 jars and remove the earlier ones
5. From
AIX and Linux - /opt/tivoli/tsm/ui/Liberty/usr/servers/guiServer/apps/TSM_HELP.war/WEB-INF/lib/
Windows - c:\Program Files\Tivoli\TSM\\ui\Liberty\usr\servers\guiServer\apps/TSM_HELP.war/WEB-INF/lib\
Replace:
log4j-api-2.8.2.jar
log4j-1.2-api-2.8.2.jar
log4j-core-2.8.2.jar
log4j-slf4j-impl-2.8.2.jar
with
log4j-api-2.17.0.jar
log4j-1.2-api-2.17.0.jar
log4j-core-2.17.0.jar
log4j-slf4j-impl-2.17.0.jar
6. Restart OC service
AIX - /opt/tivoli/tsm/ui/utils/startserver.sh
Linux -
8.1.9 and Lower (including v7) - service opscenter.rc start
8.1.10 and higher - systemctl start opscenter.service
Windows - From the Services window, start the IBM Spectrum® Protect Operations Center service.
Get Notified about Future Security Bulletins
References
Change History
27 December 2021: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
27 December 2021
UID
ibm16537240