Impact

Logging untrusted or user controlled data with a vulnerable version of Log4J may result in Remote Code Execution (RCE) against your application. This includes untrusted data included in logged errors such as exception traces, authentication failures, and other unexpected vectors of user controlled input.

More Details:
GHSA-jfh8-c2jp-5v3q

Patches

Version 1.11.1 of the Splunk Logging for Java library.

There is also a backport to version 1.6.2 released as a patch: 1.6.2-0-0.

Workarounds

If upgrading is not possible, then ensure the -Dlog4j2.formatMsgNoLookups=true system property is set on both client- and server-side components.

References

GHSA-jfh8-c2jp-5v3q

For more information

If you have any questions or comments about this advisory:

• Open an issue in https://github.com/splunk/splunk-library-javalogging/issues
• Email us at devinfo@splunk.com

References

• GHSA-94g7-hpv8-h9qm