Re: Rule Submit: Apple Quicktime RTSP Overflow

Correction:
Those rules should contain isdataat:400,relative; to guarantee it wasn't 
a short packet.

alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"BLEEDING-EDGE 
WEB-CLIENT Apple Quicktime RTSP Overflow (1)"; 
flow:established,from_server; content:"|22|rtsp|3a|//"; nocase; 
isdataat:400,relative; content:!"|0a|"; distance:0; within:400; 
content:!"|22|"; distance:0; within:400; reference:cve,2007-0015; 
classtype:attempted-admin; sid:2003???; rev:1; )
alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"BLEEDING-EDGE 
WEB-CLIENT Apple Quicktime RTSP Overflow (2)"; 
flow:established,from_server; content:"|27|rtsp|3a|//"; nocase; 
isdataat:400,relative; content:!"|0a|"; distance:0; within:400; 
content:!"|27|"; distance:0; within:400; reference:cve,2007-0015; 
classtype:attempted-admin; sid:2003???; rev:1; )

-Blake


Blake Hartstein wrote:
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any 
> (msg:"BLEEDING-EDGE WEB-CLIENT Apple Quicktime RTSP Overflow (1)"; 
> flow:established,from_server; content:"|22|rtsp|3a|//"; 
> content:!"|0a|"; distance:0; within:400; content:!"|22|"; distance:0; 
> within:400; reference:cve,2007-0015; classtype:attempted-admin; 
> sid:2003???; rev:1; )
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any 
> (msg:"BLEEDING-EDGE WEB-CLIENT Apple Quicktime RTSP Overflow (2)"; 
> flow:established,from_server; content:"|27|rtsp|3a|//"; 
> content:!"|0a|"; distance:0; within:400; content:!"|27|"; distance:0; 
> within:400; reference:cve,2007-0015; classtype:attempted-admin; 
> sid:2003???; rev:1; )
>
> -Blake


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