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HistoryDec 27, 2021 - 5:59 p.m.

Security Bulletin: Vulnerabilities in Apache Log4j affect IBM Spectrum Protect Operations Center (CVE-2021-45105, CVE-2021-45046)

2021-12-2717:59:18
www.ibm.com
18

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%

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&gt;

7.1.0.000-7.1.14.100

| 7.1.14.200| AIX
Linux
Windows| <https://www.ibm.com/support/pages/node/6527284&gt;

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&gt;

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.

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%

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