Microsoft Index Server 2.0 on IIS 4 Webhits.dll CiWebHitsFile Source information disclosure

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 Index Server 2.0 on IIS 4. It has been declared as problematic. This impacts an unknown function in the library Webhits.dll. The manipulation of the argument CiWebHitsFile with the input %20 results in information disclosure (Source). This vulnerability is known as CVE-2000-0302. Furthermore, an exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Index Server 2.0 on IIS 4. Affected is some unknown processing in the library Webhits.dll. The manipulation of the argument CiWebHitsFile with the input value %20 leads to a information disclosure vulnerability (Source). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

Microsoft Index Server allows remote attackers to view the source code of ASP files by appending a %20 to the filename in the CiWebHitsFile argument to the null.htw URL.

The weakness was published 03/21/2000 by David Litchfield as MS00-006 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is traded as CVE-2000-0302. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592.

After immediately, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10492 (MS00-006: Microsoft IIS IDA/IDQ Multiple Vulnerabilities (uncredentialed check)), 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 86040 (Microsoft IIS Index Server Arbitrary File Listing Vulnerability (MS00-006)).

Applying the patch MS00-006 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Attack attempts may be identified with Snort ID 978.

The vulnerability is also documented in the databases at X-Force (4227), Exploit-DB (19830), Tenable (10492), SecurityFocus (BID 1084†) and OSVDB (271†). Similar entries are available at VDB-15243, VDB-15268 and VDB-15269. Once again VulDB remains the best source for vulnerability data.

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Name: Source
Class: Information disclosure / Source
CWE: CWE-200 / CWE-284 / 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: 10492
Nessus Name: MS00-006: Microsoft IIS IDA/IDQ Multiple Vulnerabilities (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: MS00-006

Snort ID: 978
Snort Message: SERVER-IIS ASP contents view
Snort Class: 🔍
SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

03/21/2000 🔍
03/21/2000 +0 days 🔍
03/31/2000 +10 days 🔍
03/31/2000 +0 days 🔍
03/31/2000 +0 days 🔍
08/24/2000 +146 days 🔍
09/12/2002 +749 days 🔍
10/15/2002 +32 days 🔍
06/23/2014 +4269 days 🔍
10/16/2025 +4133 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS00-006
Researcher: David Litchfield
Status: Confirmed

CVE: CVE-2000-0302 (🔍)
GCVE (CVE): GCVE-0-2000-0302
GCVE (VulDB): GCVE-100-15420
X-Force: 4227
SecurityFocus: 1084 - MS Index Server '%20' ASP Source Disclosure Vulnerability
OSVDB: 271 - Microsoft IIS WebHits null.htw .asp Source Disclosure
Vulnerability Center: 118 - [MS00-006] Microsoft Index Server Reveals ASP Source Code, Medium

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

Entryinfo

Created: 06/24/2014 01:02
Updated: 10/16/2025 17:14
Changes: 06/24/2014 01:02 (86), 05/27/2025 11:05 (19), 10/16/2025 17:14 (2)
Complete: 🔍
Cache ID: 216:C83:103

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