Microsoft IIS 4.0/5.0 Request privileges management

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft IIS 4.0/5.0. It has been declared as critical. The impacted element is an unknown function of the component Request Handler. Such manipulation with the input +.htr leads to privileges management. This vulnerability is referenced as CVE-2000-0630. Furthermore, an exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft IIS 4.0/5.0 (Web Server). Affected by this issue is some unknown processing of the component Request Handler. The manipulation with the input value +.htr leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality. CVE summarizes:

IIS 4.0 and 5.0 allows remote attackers to obtain fragments of source code by appending a +.htr to the URL, a variant of the "File Fragment Reading via .HTR" vulnerability.

The weakness was published 07/17/2000 with Microsoft as MS00-044 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is handled as CVE-2000-0630. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10680 (Microsoft IIS Source Fragment Disclosure), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10096 (Microsoft IIS 4.0/5.0 File Source Exposure Vulnerability (MS00-044)).

Applying the patch MS00-044 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Attack attempts may be identified with Snort ID 987.

The vulnerability is also documented in the databases at X-Force (5104), Exploit-DB (20089), Tenable (10680), SecurityFocus (BID 1488†) and Vulnerability Center (SBV-159†). Similar entry is available at VDB-15546. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10680
Nessus Name: Microsoft IIS Source Fragment Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 10680
OpenVAS Name: Test Microsoft IIS Source Fragment Disclosure
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS00-044

Snort ID: 987
Snort Message: FILE-IDENTIFY .htr access file download request
Snort Class: 🔍

Suricata ID: 2100987
Suricata Class: 🔍
Suricata Message: 🔍

Timelineinfo

07/17/2000 🔍
07/17/2000 +0 days 🔍
07/17/2000 +0 days 🔍
05/29/2001 +316 days 🔍
06/25/2014 +4775 days 🔍
10/13/2025 +4128 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS00-044
Organization: Microsoft
Status: Confirmed

CVE: CVE-2000-0630 (🔍)
GCVE (CVE): GCVE-0-2000-0630
GCVE (VulDB): GCVE-100-15770
X-Force: 5104 - Microsoft IIS allows remote attackers to obtain source code fragments using +.htr
SecurityFocus: 1488 - Microsoft IIS 4.0/5.0 Source Fragment Disclosure Vulnerability
Vulnerability Center: 159

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

Entryinfo

Created: 06/25/2014 15:34
Updated: 10/13/2025 05:49
Changes: 06/25/2014 15:34 (48), 04/06/2019 00:20 (31), 06/07/2024 12:32 (17), 05/25/2025 03:38 (12), 10/13/2025 05:49 (2)
Complete: 🔍
Cache ID: 216::103

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