Microsoft IIS SSI safety check buffer overflow
| iis-ssi-safety-check-bo (8798) |  High Risk |
Description:
Microsoft Internet Information Server (IIS) is vulnerable to a buffer overflow in the function that handles Server-Side Include (SSI) files for Active Server Pages (ASP). By sending a specially-crafted request to the Web server that specifies an overly long invalid SSI file name, a remote attacker could bypass a safety check for SSI file name lengths. Bypassing this safety check could allow the attacker to overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the IIS service to fail.
Consequences:
Gain Access
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-018. See References.
For IIS:
Microsoft originally provided a patch for this vulnerability in MS02-018, but it was superseded by the patch released with MS02-062, and then superseded by the patch released with MS03-018. See References.
Note: This vulnerability also affects several Cisco products that use IIS. For affected products and upgrade or patch information, refer to Cisco Security Advisory: Microsoft IIS Vulnerabilities in Cisco Products - MS02-018. See References.
References:
- CERT Advisory CA-2002-09: Multiple Vulnerabilities in Microsoft IIS.
- CIAC Information Bulletin M-066: Microsoft Cumulative Patch for Internet Information Services (IIS) Vulnerabilities.
- Cisco Systems Inc. Security Advisory, 2002 April 15 18:00 (UTC -0400): Microsoft IIS Vulnerabilities in Cisco Products - MS02-018.
- Internet Security Systems Security Alert #114: Multiple Remote Vulnerabilities in Microsoft IIS.
- Microsoft Knowledge Base Article 319733: MS02-018: April 2002 Cumulative Patch for Internet Information Services.
- Microsoft Knowledge Base Article 321123: MS02-018: Patch Available for Buffer Overrun in ASP Server-Side Include() Function Vulnerability.
- Microsoft Security Bulletin MS02-018: Cumulative Patch for Internet Information Services (Q319733).
- Microsoft Security Bulletin MS02-062: Cumulative Patch for Internet Information Service (Q327696).
- Microsoft Security Bulletin MS03-018: Cumulative Patch for Internet Information Service (811114).
- National Infrastructure Protection Center Advisory 02-002: Multiple Remote Vulnerabilities in Microsoft's Internet Information Services (IIS).
- BID-4478: Microsoft IIS ASP Server-Side Include Buffer Overflow Vulnerability
- CVE-2002-0149: Buffer overflow in ASP Server-Side Include Function in IIS 4.0, 5.0 and 5.1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via long file names.
- OSVDB ID: 3320: Microsoft IIS ASP Server-Side Include Buffer Overflow
- US-CERT VU#721963: Microsoft Internet Information Server (IIS) buffer overflow in server-side includes (SSI) containing long invalid file name
Platforms Affected:
- Microsoft Internet Information Server 4.0
- Microsoft Internet Information Server 5.0
- Microsoft Internet Information Server 5.1
Reported:
Apr 10, 2002
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