Maybe? The one that I've seen
https://logging.apache.org/log4j/2.x/security.html
says set it as a system property, so -Dlog4j2.formatMsgNoLookups=true to
your JVM and not in the config file.
On 12/10/21 12:55 PM, Mike Osterman wrote:
Yeah, it seems like setting the log4j2.formatMsgNoLookups to "true" in
the log4j2.xml config file might do to trick.
I'm guessing we'd do that somewhere here at the top?
<?xml version="1.0" encoding="UTF-8" ?>
<!-- Specify the refresh internal in seconds. -->
<Configuration monitorInterval="5" packages="org.apereo.cas.logging">
<Properties>
<Property name="baseDir">/etc/cas/logs</Property>
</Properties>
<Appenders>
On Fri, Dec 10, 2021 at 10:41 AM 'Richard Frovarp' via CAS Community
<[email protected] <mailto:[email protected]>> wrote:
Using a new enough version of the JDK might also alleviate it? The
other option is to throw the config option at the JDK to stop it
from happening. That would seem to be easiest.
On 12/10/21 12:36 PM, King, Robert wrote:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44228
<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44228>
Has anyone attempted to mitigate this CVE yet?
There seems to be two possible approaches to mitigation:
1 The sledgehammer approach of removing the JndiLookup.class from
the jar files:
zip –q –d log4j-core-*.jar
org/apache/logging/log4j/core/lookup/JndiLookup.class
2. Rebuild CAS and set “log4jVersion=2.15.0”
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