Re: rundll32.exe buffer overflow

From: Curt Wilson (
Date: 07/08/03

  • Next message: tupac sakur: "xchar crash after 3 continually server call"
    Date: Mon,  7 Jul 2003 20:55:00 -0700

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    FYI This does not appear to be exploitable on an en Windows 2000 SP3
    + all current hotfixes (have not loaded SP4 yet however). advpack32.dll
    does not exist on my win2k pro system, however advpack.dll does and this
    was attempted, using 499 chars + more. Tried a few other DLL's to no

    Curt Wilson

    On Sun, 06 Jul 2003 11:42:42 -0700 Rick <> wrote:
    >There is buffer overflow in rundll32.exe when it is passed big string
    >as routine name for a module. I've tested this on WindowsXP SP1. But
    >other version of windows might be vuln.
    >rundll32.exe advpack32.dll,<'A'x499>
    >advpack32.dll is just example. Any executable/dll will work. The
    >cmdline does get converted to UNICODE. And EIP ends up being 00410041.

    Curt R. Wilson
    Netw3 Security
    Note: This signature can be verified at
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