packet content and signature unmatch

[hchlai () netscape net]

Hi Snorters,

 I have 2 questions regarding sid:1811

  /etc/snort/rules/attack-responses.rules:alert tcp $HOME_NET 22 -> 
$EXTERNAL_NET any (msg:"ATTACK-RESPONSES successful gobbles ssh exploit 
uname"; flow:from_server,established; content:"uname"; 
reference:bugtraq,5093; reference:cve,2002-0390; 
reference:cve,2002-0639; reference:nessus,11031; classtype:misc-attack; 
sid:1811; rev:9;

  First of all, since ssh sessions are encrypted, I should never see a 
packet content of "uname" in non-encrypted format. Am I missing 
something fundamental in here or it's just a Monday morning?
  Secondly, this signature is recorded in 2 packets by BASE, but neither 
packets nor their combine contents contain "uname" in it, so what 
exactly triggered this signature? Many thanks!

 I am running BASE 1.2.5 and Snort 2.4.5

 HinSuk
  


-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users