Snort mailing list archives

Re: Additional Info on Log4J Rules


From: Joel Esler via Snort-sigs <snort-sigs () lists snort org>
Date: Mon, 14 Feb 2022 20:14:39 -0500

Those are the official docs

On Feb 14, 2022, at 6:15 PM, Chapman, Sean via Snort-sigs <snort-sigs () lists snort org> wrote:

Hello all,
Im looking to find out if anyone has information on the logic behind some of the Snort rules associated with Log4J 
detection.  I can successfully trigger these rules by sending a crafted GET request with a jndi:ldap:// query in the 
header and then the 5 rules ( 58723 58726 58737 58742 58743 ) are triggered on the Firepower appliance and the 
packets are dropped but I cannot find anywhere that says WHY the packets are dropped beyond that its detecting rules 
for Log4J exploitation.
The 5 all have the same level of detail listed such as this one
https://www.snort.org/rule_docs/1-58723 <https://www.snort.org/rule_docs/1-58723>
Any docs or places I missed to look for the details would be super helpful.
Thanks!
 
 
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