Description
The xdrDecodeString function in XNFS.NLM in Novell Netware 6.5 before SP8 allows remote attackers to cause a denial of service (abend) or execute arbitrary code via a crafted, signed value in a NFS RPC request to port UDP 1234, leading to a stack-based buffer overflow.
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
- Novell Netware - RPC XNFS xdrDecodeString EDB-16234 · dos · Feb 24, 2011 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- netware-xdrdecodestring-code-exec(65625) vdb-entry
- 46535 vdb-entry
- ADV-2011-0497 vdb-entry
- http://www.zerodayinitiative.com/advisories/ZDI-11-090
- http://download.novell.com/Download?buildid=1z3z-OsVCiE~
- http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=24&Itemid=24
- 8104 third-party-advisory
- 43431 third-party-advisory
- 16234 exploit
- 1025119 vdb-entry
- 20110223 ZDI-11-090: Novell Netware RPC XNFS xdrDecodeString Remote Code Execution Vulnerability mailing-list