Description
Untrusted search path vulnerability in (1) WSAdminServer and (2) WSWebServer in Kerio WebSTAR (4D WebSTAR Server Suite) 5.4.2 and earlier allows local users with webstar privileges to gain root privileges via a malicious libucache.dylib helper library in the current working directory.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Kerio WebSTAR 5.4.2 (OSX) - 'libucache.dylib' Local Privilege Escalation EDB-2788 · local · Nov 15, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 21123 vdb-entry
- 1017239 vdb-entry
- kerio-webstar-privilege-escalation(30308) vdb-entry
- http://www.digitalmunition.com/DMA%5B2006-1115a%5D.txt
- 20061116 Kerio WebSTAR local privilege escalation mailing-list
- 30450 vdb-entry
- 1921 third-party-advisory
- ADV-2006-4539 vdb-entry
- 22906 third-party-advisory