Description
The DebugDiag ActiveX control in CrashHangExt.dll, possibly 1.0, in Microsoft Debug Diagnostic Tool allows remote attackers to cause a denial of service (NULL pointer dereference and Internet Explorer 6.0 crash) via a large negative integer argument to the GetEntryPointForThread method. NOTE: this issue might only be exploitable in limited environments or non-default browser settings.
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
- Microsoft DebugDiag 1.0 - 'CrashHangExt.dll' ActiveX Control Remote Denial of Service EDB-32550 · dos · Oct 30, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 31996 vdb-entry
- 20081030 DebugDiag (CrashHangExt.dll 1.0) NULL Pointer Dereference mailing-list
- debugdiagnostic-debugdiag-dos(46309) vdb-entry
- 4532 third-party-advisory