Security Bulletin: Log4j as used in IBM® QRadar User Behavior Analytics application add on to IBM® QRadar SIEM is vulnerable to remote code execution (RCE) (CVE-2021-44228)

Summary

Log4j is used by IBM® QRadar User Behavior Analytics application to log system events. This bulletin provides a remediation for the vulnerability, CVE-2021-44228 by upgrading IBM® QRadar User Behavior Analytics application add on to IBM® QRadar SIEM and thus addressing the exposure to the log4j vulnerability.

Vulnerability Details

CVEID:CVE-2021-44228
**DESCRIPTION:**Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the failure to protect against attacker controlled LDAP and other JNDI related endpoints by JNDI features. By sending a specially crafted code string, an attacker could exploit this vulnerability to load arbitrary Java code on the server and take complete control of the system. Note: The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

Updated in version 4.1.4

Recommended to upgrade to version 4.1.5

The recommendation is to apply the fix as soon as possible.

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 the upgrade issue and address CVE-2021-44228. More information can be found in the following technote: <https://www.ibm.com/support/pages/node/6527260&gt;

Workarounds and Mitigations

None