[Full-Disclosure] upnphost null pointer fun

From: ned (nd_at_felinemenace.org)
Date: 11/08/04

  • Next message: Berend-Jan Wever: "[Full-Disclosure] Re: some js code"
    To: full-disclosure@lists.netsys.com
    Date: Sun, 7 Nov 2004 21:31:11 -0800 (PST)

    unlike my other recent posts, i will revealing bug information which is
    NOT exploitable. i hope. i think they're properly diagnosed. i think.

    in upnphost module which is the windows UPNP service (http://upnp.org)
    there is a couple of null pointer exceptions, i named them 'upnp1' and
    'upnp2' and POC code is availiable at http://felinemenace.org/~nd/upnp/

    a quick demo using dumbug (http://phenoelit.de):
    (cmdline 'python upnp1.py')
    Debugger [INFO] Access violation at 5AFDDF5C
    Tracer [WARNING] AccessViolation EIP = 5AFDDF5C while reading from 00000002
    Tracer [WARNING] E_AccessViolation: Offending access not in mapped memory?
    (cmdline 'python upnp2.py')
    Debugger [INFO] Access violation at 5AFD7FEC
    Tracer [WARNING] AccessViolation EIP = 5AFD7FEC while reading from 00000000
    Tracer [WARNING] E_AccessViolation: Offending access not in mapped memory?

    completely useless of course, does not even stop the UPNP service or lock
    up svchost. dumbug is pretty cool though when screeshots just wont do!
    - nd

    Full-Disclosure - We believe in it.
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  • Next message: Berend-Jan Wever: "[Full-Disclosure] Re: some js code"

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