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Message-id: <D284B9E4.2DC28%larry0@me.com>
Date: Wed, 02 Dec 2015 15:08:20 -0500
From: Larry Cashdollar <larry0@...com>
To: Open Security <oss-security@...ts.openwall.com>
Subject: Command Injection in cool-video-gallery v1.9 Wordpress plugin
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.
Advisory: http://www.vapidlabs.com/advisory.php?v=158
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