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Security Bulletin: Vulnerabilities in Apache Log4j affect IBM Spectrum Protect Snapshot on Windows (CVE-2021-45105 and CVE-2021-45046)

Security Bulletin


Summary

Vulnerabilities in Apache Log4j could result in a denial of service or remote code execution. IBM Spectrum Protect Snapshot on Windows includes the IBM Spectrum Protect Backup-Archive Cliient which installs the vulnerable Log4j files. Based on current information and analysis, Log4j is not used by IBM Spectrum Protect Snapshot on Wiindows. The below fix package includes 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 Snapshot for Windows (formerly IBM Tivoli Storage FlashCopy Manager for Windows)8.1.11.0-8.1.13.1
IBM Tivoli Storage FlashCopy Manager for Windows

4.1.6.10-4.1.6.x

Note: IBM Spectrum Protect Snapshot for Windows packages the IBM Spectrum Protect Backup-Archive client which installs the affected Log4j files but these files are not used.  

 

Remediation/Fixes

IBM strongly recommends addressing this vulnerability now by upgrading.

Note:  The below fix packages include Log4j 2.17.

IBM Spectrum Protect
Snapshot for Windows  Affected Versions
Fixing
Level
PlatformLink to Fix and Instructions
8.1.11.0-8.1.13.1   8.1.13.2Windowshttps://www.ibm.com/support/pages/node/6538126
4.1.6.10-4.1.6.xClient Fixing Level is 7.1.8.14Windows

Apply the IBM Spectrum Protect Client 7.1.8.14 fix using this link
https://www.ibm.com/support/pages/node/316619

 

 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

05 January 2022: 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location

Worldwide

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Document Information

Modified date:
01 February 2022

UID

ibm16537642