Security Bulletin: Apache Log4j vulnerability affects IBM Integrated Analytics System (CVE-2021-44228)

Summary

Apache Log4j is used by IBM Integrated Analytics System in the Db2 warehouse container. Customers are encourages to take action and apply the fix below.

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

IBM strongly recommends addressing the vulnerability now by upgrading to the following IBM Integrated Analytics System release:

Workarounds and Mitigations

Follow below steps to mitigate CVE-2021-44228 if upgrade to newer version of IBM Integrated Analytics System is not possible :

Note: Below mitigation will need a system down time.

1. ssh node0101

2. Edit file “/opt/ibm/appliance/storage/head/db2_config/db2set.text” and add line

DB2_JVM_STARTARGS=“-Dlog4j2.formatMsgNoLookups=true”

3. stop the application

apstop -a

4. start the application

apstart -a