Microsoft Windows LSASS (Local Security Authority Subsystem Service) is prone to a remotely exploitable buffer overrun vulnerability. The specific vulnerable system component is LSASRV.DLL. Successful exploitation of this issue could allow a remote attacker to execute malicious code on a vulnerable system, resulting in full system compromise.
This issue could be exploited by an anonymous user on Microsoft Windows 2000 and XP operating systems. The issue may reportedly only be exploited by local, authenticated users on Microsoft Windows Server 2003 and Microsoft Windows XP 64-Bit Edition 2003. Microsoft has stated that a local administrator could exploit the issue on these platforms, though this does not appear to pose any additional security risk as the administrator will likely already have complete control over the system.
Information
Microsoft Windows XP Professional
Microsoft Windows XP Home SP1
Microsoft Windows XP Home
Microsoft Windows XP 64-bit Edition Version 2003 SP1
Microsoft Windows XP 64-bit Edition Version 2003
Microsoft Windows XP 64-bit Edition SP1
Microsoft Windows XP 64-bit Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Enterprise Edition Itanium 0
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Datacenter Edition Itanium 0
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows 2000 Server SP4
Microsoft Windows 2000 Server SP3
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server
Microsoft Windows 2000 Professional SP4
Microsoft Windows 2000 Professional SP3
Microsoft Windows 2000 Professional SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Datacenter Server SP4
Microsoft Windows 2000 Datacenter Server SP3
Microsoft Windows 2000 Datacenter Server SP2
Microsoft Windows 2000 Datacenter Server SP1
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Advanced Server SP4
Microsoft Windows 2000 Advanced Server SP3
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server
Avaya S8100 Media Servers 0
Avaya S3400 Message Application Server 0
Avaya IP600 Media Servers
Avaya DefinityOne Media Servers
Exploit
Exploit code has been released.
An additional exploit (HOD-ms04011-lsasrv-expl.c) has been supplied by houseofdabus.
Additional exploit code (xphack.c) also released by Jocanor.
An Exploit has been released for this issue as part of the Metasploit Framework project version 2.2. Various other exploits have been released as well. Please see the Metasploit exploits site in Web references for more information.
CORE has developed a working commercial exploit for their IMPACT
product. This exploit is not otherwise publicly available or known
to be circulating in the wild.
References:
- Metasploit Framework Exploits (Metasploit)
- Microsoft Security Bulletin MS04-011 (Microsoft)
- MSRPC LSASS Buffer Overflow exploit (CORE Security)
- Vulnerability Note VU#753212 - Microsoft LSA Service contains buffer overflow in (CERT/CC)
- W32.Janx (Symantec)
- Windows Local Security Authority Service Remote Buffer Overflow (eEye)
- EEYE: Windows Local Security Authority Service Remote Buffer Overflow ("Marc Maiffret"
)