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.
References
- 74826 vdb-entry
- http://www.kb.cert.org/vuls/id/BLUU-9VBU45
- VU#551972 third-party-advisory