Vulnerability CVE-2015-2851
Published: 2015-05-30

Description:
client_chown in the sync client in Synology Cloud Station 1.1-2291 through 3.1-3320 on OS X allows local users to change the ownership of arbitrary files, and consequently obtain root access, by specifying a filename.

CVSS2 => (AV:L/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
10/10
3.1/10
Exploit range
Attack complexity
Authentication
Local
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Synology -> Cloud station 

 References:
http://www.kb.cert.org/vuls/id/551972
http://www.kb.cert.org/vuls/id/BLUU-9VBU45
http://www.securityfocus.com/bid/74826
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