Description
The accept_connections function in the virtual private network daemon (vpnd) in Apple Mac OS X 10.5 before 10.5.4 allows remote attackers to cause a denial of service (divide-by-zero error and daemon crash) via a crafted load balancing packet to UDP port 4112.
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
- Apple Mac OSX 10.5.0 (Leopard) - vpnd Remote Denial of Service (PoC) EDB-4690 · dos · Dec 4, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://support.apple.com/kb/HT2163
- ADV-2008-1981 vdb-entry
- macos-vpnd-dos(38855) vdb-entry
- 26699 vdb-entry
- ADV-2007-4145 vdb-entry
- APPLE-SA-2008-06-30 vendor-advisory
- 27938 third-party-advisory
- 30802 third-party-advisory
- 1019052 vdb-entry
- 4690 exploit