Security Bulletin: Vulnerabilities from log4j-core-2.16.0.jar affect IBM Operations Analytics - Log Analysis (CVE-2021-44832, CVE-2021-45105)

Summary

log4j-core-2.16.0.jar is vulnerable to remote code execution (RCE) attack and uncontrolled recursion. This is shipped in Log Analysis. The fix includes Apache Log4j core 2.17.1

Vulnerability Details

CVEID:CVE-2021-44832
**DESCRIPTION:**Apache Log4j could allow a remote attacker with permission to modify the logging configuration file to execute arbitrary code on the system. By constructing a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI , an attacker could exploit this vulnerability to execute remote code.
CVSS Base score: 6.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216189 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)

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)

Affected Products and Versions

Remediation/Fixes

Prior to Log Analysis version 1.3.7.2, upgrade to Log Analysis version 1.3.7 Fix Pack 2 and apply 1.3.x Log4j Interim Fix 1 (Solr) fix. Download 1.3.7-TIV-IOALA-FP2 and 1.3.x-TIV-IOALA-IF1-Log4j-solr

For Log Analysis version 1.3.7.2, apply 1.3.x Log4j Interim Fix 1 (Solr) fix

Workarounds and Mitigations

None