module

Coppermine Photo Gallery picEditor.php Command Execution

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Disclosed
2008-01-30
Created
2018-05-30

Description

This module exploits a vulnerability in the picEditor.php script of
Coppermine Photo Gallery versions 1.4.14 and earlier. When configured to
use the ImageMagick library, the 'quality', 'angle', and 'clipval'
parameters are not properly escaped before being passed to the PHP
'exec' command.

In order to reach the vulnerable 'exec' call, the input must pass
several validation steps.

The vulnerabilities actually reside in the following functions:

image_processor.php: rotate_image(...)
include/imageObjectIM.class.php: imageObject::cropImage(...)
include/imageObjectIM.class.php: imageObject::rotateImage(...)
include/imageObjectIM.class.php: imageObject::resizeImage(...)
include/picmgmt.inc.php: resize_image(...)

NOTE: Use of the ImageMagick library is a non-default option. However, a
user can specify its use at installation time.

Authors

Janek Vind
jduck jduck@metasploit.com

Platform

Unix

Architectures

cmd

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/unix/webapp/coppermine_piceditor
    msf exploit(coppermine_piceditor) > show targets
        ...targets...
    msf exploit(coppermine_piceditor) > set TARGET < target-id >
    msf exploit(coppermine_piceditor) > show options
        ...show and set options...
    msf exploit(coppermine_piceditor) > exploit
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