Security Bulletin: A vulnerability in Apache Log4j (CVE-2021-45046) impacts IBM® QRadar User Behavior Analytics add on to IBM® QRadar SIEM.

Security Bulletin

Summary

There is a vulnerability in Apache Log4j which is used by IBM® QRadar User Behavior Analytics(UBA) to log system events.

Vulnerability Details

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)
QRadar User Behavior Analytics	1.0.0 - 4.1.4

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading IBM® QRadar User Behavior Analytics add on to IBM® QRadar SIEM to version 4.1.5

Updated in version 4.1.5

Note: An issue was found impacting some upgrades from earlier versions of UBA to versions 4.1.3 and 4.1.4. UBA version 4.1.5 has been released to address these upgrade issues. More information can be found in the following technote: https://www.ibm.com/support/pages/node/6527260

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Change History

17 Dec 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

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSBQAC","label":"IBM QRadar SIEM"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.3, 7.4","Edition":"","Line of Business":{"code":"LOB24","label":"Security Software"}}]

Tips

Security Bulletin: A vulnerability in Apache Log4j (CVE-2021-45046) impacts IBM® QRadar User Behavior Analytics add on to IBM® QRadar SIEM.