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BugTraq
RE: Unchecked buffer in mstask.dll Jul 14 2004 11:50PM psz maths usyd edu au (Paul Szabo) (2 replies) Re: [Full-Disclosure] RE: Unchecked buffer in mstask.dll Jul 15 2004 01:32AM Jordan Cole (stilist) (stilist gmail com) (1 replies) Re: [Full-Disclosure] RE: Unchecked buffer in mstask.dll Jul 15 2004 03:03AM Nick FitzGerald (nick virus-l demon co uk) (1 replies) Re: [Full-Disclosure] RE: Unchecked buffer in mstask.dll Jul 15 2004 08:09PM Curt Purdy (purdy tecman com) |
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> Being curious, on Win2k, I copied cmd.exe (from winnt\system32) as xyz.pif;
> then (right-click) Properties, Program crashes explorer. Is this related to
> IconHandler, and is it exploitable?
Right -- in Win2K SP4 clicking on [Program] tab of Properties
window causes "access violation" -- the memory at 0x00000000 could not be
"read" by SHELL32.DLL. MSVC++, acting as a debugger, shows a mixture of
KERNEL32, COMCTL32, USER32, SHELL32 and SHLWAPI in stack trace.
Disassembly window shows that there was an attempt to read dword
at [EAX] (EAX=0). So at first glance this doesn't seem to be trivially
exploitable, but I'm not a win32 expert, and intuition suggests that there
must be a way.
_________________________________________
Dmitry Yu. Bolkhovityanov
The Budker Institute of Nuclear Physics
Novosibirsk, Russia
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