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ollydbg110.txt

ollydbg110.txt
Posted Mar 22, 2005
Authored by ATmaCA | Site atmacasoft.com

OllyDbg versions 1.10 and below are susceptible to a crash when loading modules with filenames greater than 200 bytes.

tags | advisory
MD5 | 2312cf459e70ce873f1a21f67dc81dc2

ollydbg110.txt

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Vendor:
Oleh Yuschuk

Application:
OllyDbg
http://home.t-online.de/home/Ollydbg/

Introduction:
OllyDbg is a 32-bit assembler level analysing debugger for Microsoft® Windows®.
Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable.

Affected Versions:
1.10 (final version) and prior versions.

Overview:
In OllyDbg, if a target process loads modules that contains long name
(greater than around 200 bytes), OllyDbg will be crashed.

This hole can be used for an anti-debug method for OllyDbg.


Vendor Status:
No vendor response.

Discovery:
ATmaCA
atmaca@atmacasoft.com
www.atmacasoft.com
www.spyinstructors.com
Credit to Kozan

POC:
Debug this program with OllyDbg,
when the program runs, a folder that named "olly hole" will be
created on desktop and a long named dll will be created in
this folder. then it will load this and finally
olly debug will be crashed.

http://www.atmacasoft.com/exp/OllyHole.exe
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