Microsoft Windows NT/2000 debugging subsystem allows attacker to create duplicate handles
| win-debug-duplicate-handles (8462) |  High Risk |
Description:
The debugging subsystem in Microsoft Windows could allow a local attacker to bypass the authentication mechanism and create duplicate handles to any process or thread on the system. An attacker can use this vulnerability to execute a malicious program on the system with elevated privileges.
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-024. See References.
References:
- BugTraq Mailing List, Thu Mar 14 2002 - 17:43:31 CST: Fwd: DebPloit (exploit).
- BugTraq Mailing List, Wed Mar 27 2002 - 04:01:58 CST: Local Security Vulnerability in Windows NT and Windows 2000.
- CIAC Information Bulletin M-083: Microsoft Authentication Flaw in Windows Debugger.
- Defendion Web site: EliCZ's.
- Microsoft Security Bulletin MS02-024: Authentication Flaw in Windows Debugger can Lead to Elevated Privileges (Q320206).
- BID-4287: Microsoft Windows 2000 / NT 4.0 Process Handle Local Privilege Elevation Vulnerability
- CVE-2002-0367: smss.exe debugging subsystem in Windows NT and Windows 2000 does not properly authenticate programs that connect to other programs, which allows local users to gain administrator or SYSTEM privileges by duplicating a handle to a privileged process, as demonstrated by DebPloit.
Platforms Affected:
- Microsoft Windows 2000
- Microsoft Windows NT 4.0
Reported:
Mar 14, 2002
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