Microsoft ISA Server 2000 Web Proxy denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
4.6$0-$5k0.00

A vulnerability was found in Microsoft ISA Server 2000 (Firewall Software). It has been classified as problematic. This affects an unknown code block of the component Web Proxy. 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:

Microsoft Internet Security and Acceleration (ISA) Server 2000 Web Proxy allows remote attackers to cause a denial of service via a long web request with a specific type.

The weakness was disclosed 07/02/2001 with Microsoft as confirmed posting (Bugtraq). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2001-0239. 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 are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (6383).

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

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

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2001 🔍
04/16/2001 +0 days 🔍
07/02/2001 +77 days 🔍
07/02/2001 +0 days 🔍
02/04/2003 +582 days 🔍
07/04/2014 +4168 days 🔍
05/08/2019 +1769 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: securityfocus.com⛔
Organization: Microsoft
Status: Confirmed

CVE: CVE-2001-0239 (🔍)
X-Force: 6383 - Microsoft ISA Server Web Proxy denial of service
Vulnerability Center: 803 - [MS01-021] DoS in Microsoft ISA Server 2000 Web Proxy via Long Web Requests with Specific Type, High
SecurityFocus: 2600 - Microsoft ISA Server Web Proxy DoS Vulnerability

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

Entryinfo

Created: 07/05/2014 00:46
Updated: 05/08/2019 20:32
Changes: 07/05/2014 00:46 (65), 05/08/2019 20:32 (1)
Complete: 🔍

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