Title: Command Injection in cool-video-gallery v1.9 Wordpress plugin |
Author: Larry W. Cashdollar, @_larry0 |
Date: 2015-11-29 |
CVE-ID:[CVE-2015-7527] |
CWE: CWE-20 Input Validation |
Download Site: https://wordpress.org/plugins/cool-video-gallery/ |
Vendor: https://profiles.wordpress.org/praveen-rajan, fixed v2.0 |
Vendor Notified: 2015-11-30 |
Vendor Contact: https://wordpress.org/support/topic/command-injection-vulnerability-in-v19?replies=1#post-7721994 |
Advisory: http://www.vapidlabs.com/advisory.php?v=158 |
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,
I believe 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 );
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Export: JSON TEXT XML |
Exploit Code:
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Screen Shots: [cool1.png][cool2.png] |
Notes: |
Larry W. Cashdollar
Larry Cashdollar
Larry W. Cashdollar vulnerability
Larry Cashdollar advisory