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Vulnerability Score 7.5 7.5
CVE Id CVE-2002-1973
Last Modified 10 Sep 2008 03:16:03
Published 31 Dec 2002 12:00:00
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact PARTIAL PARTIAL
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



Buffer overflow in CHttpServer::OnParseError in the ISAPI extension (Isapi.cpp) when built using Microsoft Foundation Class (MFC) static libraries in Visual C++ 5.0, and 6.0 before SP3, as used in multiple products including BadBlue, allows remote attackers to cause a denial of service (access violation and crash) and possibly execute arbitrary code via a long query string that causes a parsing error.

Vulnerable Systems


  • Microsoft Foundation Class Library 7.0

  • Working Resources Inc. Badblue Personal 1.7.3


BUGTRAQ - 20020712 MFC Overflow Test Code

XF - mfc-lib-isapi-bo(9529)

BID - 5188

MSKB - 310649

MSKB - 216562

BUGTRAQ - 20020712 Re: MFC ISAPI Framework Buffer Overflow

BUGTRAQ - 20020711 MFC ISAPI Framework Buffer Overflow

BUGTRAQ - 20020708 ALERT: Working Resources BadBlue #2 (DoS, Heap Overflow)

Last Updated: 27 May 2016 10:37:34