VDB-16965 · CVE-2001-1243 · XFDB 6800

Microsoft IIS 4.0/5.0 Device File asp.dll Scripting.FileSystemObject denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Microsoft IIS 4.0/5.0. This vulnerability affects the function Scripting.FileSystemObject in the library asp.dll of the component Device File Handler. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2001-1243. Furthermore, an exploit is available. This vulnerability is historically significant due to its background and the way it was received. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft IIS 4.0/5.0 (Web Server). This affects the function Scripting.FileSystemObject in the library asp.dll of the component Device File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cause a denial of service (crash) via (1) creating an ASP program that uses Scripting.FileSystemObject to open a file with an MS-DOS device name, or (2) remotely injecting the device name into ASP programs that internally use Scripting.FileSystemObject.

The weakness was published 07/04/2001 by ViPeR as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2001-1243. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/27/2025). Due to its background and reception, this vulnerability has a historic impact.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (6800), Exploit-DB (20989) and SecurityFocus (BID 2973†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Web Server

Vendor

Microsoft

Name

Version

License

commercial

Website

Vendor: https://www.microsoft.com/

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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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/04/2001 🔍
07/04/2001 +0 days 🔍
07/04/2001 +0 days 🔍
07/07/2014 +4751 days 🔍
01/27/2025 +3857 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: securityfocus.com⛔
Researcher: ViPeR
Status: Confirmed

CVE: CVE-2001-1243 (🔍)
GCVE (CVE): GCVE-0-2001-1243
GCVE (VulDB): GCVE-100-16965
X-Force: 6800
SecurityFocus: 2973 - Microsoft IIS Device File Local DoS Vulnerability

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

Entryinfo

Created: 07/07/2014 10:29
Updated: 01/27/2025 13:39
Changes: 07/07/2014 10:29 (51), 04/09/2019 09:18 (8), 01/21/2025 07:07 (19), 01/27/2025 13:39 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.