Description
Untrusted search path vulnerability in the CMainThread::launchDownloader function in vpndownloader.exe in Cisco AnyConnect Secure Mobility Client 2.0 through 4.1 on Windows allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by dbghelp.dll, aka Bug ID CSCuv01279. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-4211.
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
- Cisco AnyConnect Secure Mobility Client 3.1.08009 - Local Privilege Escalation EDB-38289 · local · Sep 22, 2015 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 1033643 vdb-entry
- 38289 exploit
- 20150922 Cisco AnyConnect elevation of privileges via DLL side loading mailing-list
- 20150922 Cisco AnyConnect Secure Mobility Client for Windows Privilege Escalation Vulnerability vendor-advisory
- https://code.google.com/p/google-security-research/issues/detail?id=460
- http://packetstormsecurity.com/files/133876/Cisco-AnyConnect-Secure-Mobility-Client-3.1.08009-Privilege-Elevation.html