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WordPress Cool Video Gallery 1.9 Command Injection

WordPress Cool Video Gallery 1.9 Command Injection
Posted Dec 3, 2015
Authored by Larry W. Cashdollar

WordPress Cool Video Gallery plugin version 1.9 suffers from a remote command injection vulnerability.

tags | exploit, remote
advisories | CVE-2015-7527
MD5 | 93957d650a1d3a660742297dd69baea5

WordPress Cool Video Gallery 1.9 Command Injection

Change Mirror Download

Title: Command Injection in cool-video-gallery v1.9 Wordpress plugin
Author: Larry W. Cashdollar, @_larry0
Date: 2015-11-29
Download Site: https://wordpress.org/plugins/cool-video-gallery/
Vendor: https://profiles.wordpress.org/praveen-rajan/
Vendor Notified: 2015-11-30
Vendor Contact:
https://wordpress.org/support/topic/command-injection-vulnerability-in-v19?r
eplies=1#post-7721994
Description: Cool Video Gallery is a Video Gallery plugin for WordPress with
option to upload videos, attach media files, add Youtube videos and manage
them in multiple galleries. Automatic preview image generation for uploaded
videos using FFMPEG library available. Option provided to upload images for
video previews. Supports '.flv', '.mp4', '.mov', '.m4v' and '.mp3' video
files presently.
Vulnerability:
If any of the arguments being passed to $command are sourced from user
input, we can inject commands to be passed to the shell via exec() on line
714.

In cool-video-gallery/lib/core.php lines 703-714:

703 $gallery = videoDB::find_gallery($video->galleryid);
704 $video_input = $gallery->abspath . '/' .
$video->filename;
705 $new_target_filename = $video->alttext . '.png';
706 $new_target_file = $gallery->abspath .
'/thumbs/thumbs_' . $new_target_filename;
707
708 if($video->video_type ==
$cool_video_gallery->video_type_media){
709 $command = $options['cvg_ffmpegpath'] . " -i
'$video->filename' -vcodec mjpeg -vframes 1 -an -f rawvideo -ss 5 -s
".$thumb_width ."x".$thumb_height." '$new_target_file'";
710 }else {
711 $command = $options['cvg_ffmpegpath'] . " -i
'$video_input' -vcodec mjpeg -vframes 1 -an -f rawvideo -ss 5 -s "
.$thumb_width ."x".$thumb_height." '$new_target_file'";
712 }
713
714 exec ( $command );
CVEID: 2015-7527
Exploit Code:
Screen shots are located at below URL.

[[ Packet StormEditor Note: In "Width of preview image:" put 100;id>/tmp/p and then you should see the output in /tmp/p ]]

Advisory: http://www.vapidlabs.com/advisory.php?v=158


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