PHP exploit (Was Re: Wave of Nimda-like hits this morning?)

From: Chris Adams (chrisat_private)
Date: Tue Feb 26 2002 - 17:48:48 PST

  • Next message: Sterling Moses: "New Attack / New Vulnerability?"

    On Tuesday, February 26, 2002, at 12:28 , Jay D. Dyson wrote:
    >> Whatever this (maybe) new bug is, it's blowing up these boxes left and
    >> right...can't figure it out.  They're all relatively new 1.3'ish
    >> versions I think.
    >
    > 	I've heard rumblings of an Apache/PHP exploit making the rounds.
    > Any of these machines using PHP by chance?
    
    This just hit the snort-sigs list this afternoon:
    
    From: Brian <bmcat_private>
    Date: Tue Feb 26, 2002  04:02:22  US/Pacific
    Subject: [Snort-sigs] php overflow signatures
    
    Below are the initial signatures for the PHP overflow that is about to
    get a bunch of publication.  Have fun and whatnot.
    
    Sourceforge's CVS server is broken, so these are not yet in CVS.
    
    alert tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"EXPERIMENTAL php 
    content-disposition memchr overlfow"; flags:A+; 
    content:"Content-Disposition\:"; content:"name=\"|CC CC CC CC CC|"; 
    classtype:web-application-attack; sid:1423; rev:1;)
    
    alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"EXPERIMENTAL SHELLCODE 
    x86 EB OC NOOP"; content:"|EB 0C EB 0C EB 0C EB 0C EB 0C EB 0C EB 0C EB 
    0C|"; classtype:shellcode-detect; sid:1424; rev:1;)
    
    alert tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"EXPERIMENTAL php 
    content-disposition"; flags:A+; content:"Content-Disposition\:"; 
    content:"form-data\;"; classtype:web-application-attack; sid:1425; 
    rev:1;)
    
    
    ----------------------------------------------------------------------------
    This list is provided by the SecurityFocus ARIS analyzer service.
    For more information on this free incident handling, management 
    and tracking system please see: http://aris.securityfocus.com
    



    This archive was generated by hypermail 2b30 : Wed Feb 27 2002 - 10:56:21 PST