module

HP OpenView Network Node Manager ov.dll _OVBuildPath Buffer Overflow

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Disclosed
Nov 1, 2011
Created
May 30, 2018

Description

This 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 an 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. If the installation path cannot be guessed the default installation path
is used.

Authors

Anyway [email protected]
juan vazquez [email protected]
sinn3r [email protected]

Platform

Windows

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use exploit/windows/http/hp_nnm_ovbuildpath_textfile
    msf exploit(hp_nnm_ovbuildpath_textfile) > show targets
        ...targets...
    msf exploit(hp_nnm_ovbuildpath_textfile) > set TARGET < target-id >
    msf exploit(hp_nnm_ovbuildpath_textfile) > show options
        ...show and set options...
    msf exploit(hp_nnm_ovbuildpath_textfile) > exploit
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