Microsoft IIS 5.0 Server-Side Include ssinc.dll memory corruption

CVSS Meta Temp Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Microsoft IIS 5.0. Affected is an unknown function in the library ssinc.dll of the component Server-Side Include. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2001-0506. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft IIS 5.0 (Web Server). It has been declared as critical. This vulnerability affects an unknown functionality in the library ssinc.dll of the component Server-Side Include. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in ssinc.dll in IIS 5.0 and 4.0 allows local users to gain system privileges via a Server-Side Includes (SSI) directive for a long filename, which triggers the overflow when the directory name is added, aka the "SSI privilege elevation" vulnerability.

The issue has been introduced in 02/17/2000. The weakness was presented 09/20/2001 by NSFOCUS with NSFOCUS Security Team as not defined posting (Bugtraq). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability was named CVE-2001-0506. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 487 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10685 (Microsoft IIS ISAPI Filter Multiple Vulnerabilities (MS01-044)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (6984), Exploit-DB (21071), Tenable (10685), SecurityFocus (BID 3190†) and Vulnerability Center (SBV-3053†). See VDB-17370, VDB-17568 and VDB-17569 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10685
Nessus Name: Microsoft IIS ISAPI Filter Multiple Vulnerabilities (MS01-044)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 10767
OpenVAS Name: Tests for Nimda Worm infected HTML files
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/17/2000 🔍
06/18/2001 +487 days 🔍
06/19/2001 +1 days 🔍
08/15/2001 +57 days 🔍
08/15/2001 +0 days 🔍
09/20/2001 +36 days 🔍
09/20/2001 +0 days 🔍
12/01/2003 +802 days 🔍
07/09/2014 +3873 days 🔍
02/15/2025 +3874 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: marc.theaimsgroup.com
Researcher: NSFOCUS
Organization: NSFOCUS Security Team
Status: Confirmed

CVE: CVE-2001-0506 (🔍)
GCVE (CVE): GCVE-0-2001-0506
GCVE (VulDB): GCVE-100-17368
X-Force: 6984 - Microsoft IIS specially-crafted SSI directives buffer overflow
SecurityFocus: 3190 - Microsoft IIS SSI Buffer Overrun Privelege Elevation Vulnerability
Vulnerability Center: 3053 - [MS01-044] Buffer Overflow in IIS 5.0 and 4.0 Allows Local Users Privilege Escalation, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/09/2014 12:22
Updated: 02/15/2025 12:14
Changes: 07/09/2014 12:22 (81), 05/17/2019 12:00 (2), 02/15/2025 12:14 (19)
Complete: 🔍
Cache ID: 216::103

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