Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

BID:9963

Info

Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

Bugtraq ID: 9963
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: Mar 24 2004 12:00AM
Updated: Mar 24 2004 12:00AM
Credit: This issue was publicized in a Secunia advisory.
Vulnerable: Microsoft Visual Studio 6.0 SP5
Microsoft Visual Studio 6.0 SP4
Microsoft Visual Studio 6.0 SP3
Microsoft Visual Studio 6.0 SP2
Microsoft Visual Studio 6.0 SP1
Microsoft Visual Studio 6.0
- Microsoft Windows NT 4.0
- Microsoft Windows NT 4.0
Microsoft Visual C++ 6.0 SP5
Microsoft Visual C++ 6.0 SP4
Microsoft Visual C++ 6.0 SP3
Microsoft Visual C++ 6.0 SP2
Microsoft Visual C++ 6.0 SP1
Microsoft Visual C++ 6.0
Not Vulnerable:

Discussion

Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

It has been reported that ISAPI (Internet Server Application Programming Interface) extensions that are built using the MFC (Microsoft Foundation Classes) static library in Microsoft Visual C++ are prone to a denial of service vulnerability. This could occur during POST requests when the ISAPI extension is under heavy load.

Microsoft Visual C++ is included in Microsoft Visual Studio. This reportedly affects Microsoft Visual C++/Studio 6.

Exploit / POC

Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

Solution:
This issue will reportedly be addressed with the release of Microsoft Visual Studio 6 Service Pack 6, which will be listed at the following page when it is released:
http://msdn.microsoft.com/vstudio/downloads/updates/sp/

This Service Pack is not available at the time of writing. Symantec has also not confirmed whether or not this release will indeed address this issue. If this release does address the issue, it should be noted that ISAPI extensions based on prior versions of MFC will likely need to be recompiled with the updated static libraries.

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Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

Microsoft Visual C++ MFC ISAPI Extension Denial Of Service Vulnerability

References:
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