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OSVDB: OSVDB-76775

HP OpenView Network Node Manager ov.dll _OVBuildPath Buffer Overflow
Posted Jan 20, 2012
Authored by sinn3r, Aniway, juan vazquez | Site metasploit.com

This Metasploit module exploits a stack buffer overflow in HP OpenView Network Node Manager 7.53 prior to NNM_01213 without the SSRT100649 hotfix. By specifying a long 'textFile' argument when calling the 'webappmon.exe' CGI program, an attacker can cause a stack-based buffer overflow and execute arbitrary code. The vulnerable code is within the "_OVBuildPath" function within "ov.dll". There are no stack cookies, so exploitation is achieved by overwriting the saved return address. The vulnerability is due to the use of the function "_OVConcatPath" which finally uses "strcat" in a insecure way. User controlled data is concatenated to a string which contains the OpenView installation path. To achieve reliable exploitation a directory traversal in OpenView5.exe (OSVDB 44359) is being used to retrieve OpenView logs and disclose the installation path.

tags | exploit, overflow, arbitrary, cgi
advisories | CVE-2011-3167, OSVDB-76775
SHA-256 | 26a5037665e807931d129cb3332a8855a52fd678003e154545e4f756a1452924
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