CVE-2021-44228 (log4j) Apache vulnerability - How does this affect security in ServiceNow?

[Kelly Logan]

Apache Log4j2 <=2.14.1 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. In previous releases (>2.10) this behavior can be mitigated by setting system property "log4j2.formatMsgNoLookups" to “true” or by removing the JndiLookup class from the classpath (example: zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class). Java 8u121 (see https://www.oracle.com/java/technologies/javase/8u121-relnotes.html) protects against remote code execution by defaulting "com.sun.jndi.rmi.object.trustURLCodebase" and "com.sun.jndi.cosnaming.object.trustURLCodebase" to "false".

https://nvd.nist.gov/vuln/detail/CVE-2021-44228

Exploit code has been released for a serious code-execution vulnerability in Log4j, an open-source logging utility that's used in countless apps, including those used by large enterprise organizations, several websites reported on last Thursday.

https://arstechnica.com/information-technology/2021/12/minecraft-and-other-apps-face-serious-threat-from-new-code-execution-bug/

[Dave Mau]

We've updated the following KB with our posture, please continue to check it for updates as well:

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1000959​​​​​​​

[Ben79]

Hi Dave, the KB doesn't load....is it still being worked on?

thanks Ben

[Vibhash Chandra]

It works when URL is copied to the browser.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1000959

[Jag]

Hi Dave, It is coming as article not found. Regards

[Alan So]

I encountered "Knowledge record not found" when I tried to access the article.  Any special permission needed to access this article?  Thanks.