Microsoft IIS 5.0 FTP Service Wildcard denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in Microsoft IIS 5.0 (Web Server). It has been classified as problematic. Affected is an unknown functionality of the component FTP Service. The manipulation as part of a Wildcard 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. CVE summarizes:

FTP service in IIS 5.0 and earlier allows remote attackers to cause a denial of service via a wildcard sequence that generates a long string when it is expanded.

The issue has been introduced in 02/17/2000. The weakness was released 06/27/2001 with Microsoft as MS01-026 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is traded as CVE-2001-0334. 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 are unknown but a public exploit is available.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 496 days. During that time the estimated underground price was around $5k-$25k.

Applying the patch MS01-026 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1743.

The vulnerability is also documented in the vulnerability database at X-Force (6535). Entries connected to this vulnerability are available at 16837, 16838 and 16839.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

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

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS01-026
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

02/17/2000 🔍
05/14/2000 +87 days 🔍
06/27/2001 +409 days 🔍
06/27/2001 +0 days 🔍
06/27/2001 +0 days 🔍
02/22/2004 +970 days 🔍
07/04/2014 +3785 days 🔍
05/20/2019 +1781 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS01-026
Organization: Microsoft
Status: Confirmed

CVE: CVE-2001-0334 (🔍)
X-Force: 6535 - Microsoft IIS FTP wildcard processing function denial of service
Vulnerability Center: 3826 - [MS01-026] DoS in Microsoft IIS FTP Service due to Flaw in Pattern Matching, Medium
SecurityFocus: 2717 - Microsoft IIS FTP Denial of Service Vulnerability

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

Entryinfo

Created: 07/04/2014 16:20
Updated: 05/20/2019 07:39
Changes: 07/04/2014 16:20 (77), 05/20/2019 07:39 (1)
Complete: 🔍

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