| Title: Thumbshooter 0.1.5 remote code execution |
| Author: Larry W. Cashdollar, @_larry0 |
| Date: 2013-03-25 |
| Download Site: https://github.com/digineo/thumbshooter |
| Vendor: http://www.digineo.de/ |
| Vendor Notified: 2013-03-25 |
| Vendor Contact: http://www.digineo.de/ |
| Description: Generates thumbshots of URLs by using Webkit and QT4. |
| Vulnerability: Specially crafted URLs can result in remote code execution if the URL contains shell metacharacters.
We see that the url is passed directly to the shell in the following code snippet from ./thumbshooter-0.1.5/lib/thumbshooter.rb:
1012 command << "xvfb-run -a --server-args='-screen 0, #{screen}x24' "
1015 command << "{WEBKIT2PNG} '{url}' {args}"
1016
1017 img = `{command} 2>&1` |
| CVEID: 2013-1898 |
| OSVDB:91839 |
| Exploit Code: |
| Screen Shots: |
| Advisory: http://www.vapid.dhs.org/advisories/thumbshooter-ruby-gem-remoteexec.html |