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MS.IIS.ISAPI.HTR.Extension.Buffer.Overflow

Release Date

Dec 24, 2011

Severity

high

Impact

System Compromise: Remote attackers can gain control of vulnerable systems

Description

This indicates an attempt to exploit a Buffer Overflow vulnerability in the HTR ISAPI extension of Microsoft Internet Information Services(IIS).

The ism.dll implements HTR scripting in IIS. There is a buffer overflow vulnerability in some versions of IIS that allows attackers to cause a denial of service or execute arbitrary code on a target system via specially crafted HTR requests.

Affected Products

Microsoft Internet Information Server 4.0
Microsoft Internet Information Services 5.0

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://technet.microsoft.com/en-us/security/bulletin/ms02-018

Coverage

IPS
VCM

Common Vulnerabilities and Exposures (CVE)

CVE-1999-0874
CVE-2002-0071

Reference/s

http://www.securityfocus.com/bid/4474 (BugTraq)
http://www.securityfocus.com/bid/307 (BugTraq)
http://technet.microsoft.com/en-us/security/bulletin/MS02-018.mspx (MS-ID)

Reference: VID-30406