Description
Stack-based buffer overflow in a logging function for Windows Workstation Service (WKSSVC.DLL) allows remote attackers to execute arbitrary code via RPC calls that cause long entries to be written to a debug log file ("NetSetup.LOG"), as demonstrated using the NetAddAlternateComputerName API.
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.
Metasploit 1 module
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MS03-049 Microsoft Workstation Service NetAddAlternateComputerName Overflow
exploit/windows/smb/ms03_049_netapi
Exploit-DB 4
- Microsoft Workstation Service - NetAddAlternateComputerName Overflow (MS03-049) (Metasploit) EDB-16378 · remote · May 9, 2010 · verified
- Microsoft Windows XP - Workstation Service Remote (MS03-049) EDB-130 · remote · Dec 4, 2003 · verified
- Microsoft Windows - Workstation Service WKSSVC Remote (MS03-049) EDB-123 · remote · Nov 14, 2003 · verified
- Microsoft Windows XP/2000 - Workstation Service Overflow (MS03-049) EDB-119 · remote · Nov 12, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20040129 Buffer Overrun in Microsoft Windows 2000 Workstation Service (MS03-049) vendor-advisory
- MS03-049 vendor-advisory
- 9011 vdb-entry
- 20031111 EEYE: Windows Workstation Service Remote Buffer Overflow mailing-list
- VU#567620 third-party-advisory
- 20031112 Proof of concept for Windows Workstation Service overflow mailing-list
- oval:org.mitre.oval:def:331 vdb-entry signature
- CA-2003-28 third-party-advisory
- oval:org.mitre.oval:def:575 vdb-entry signature