Squid Proxy up to 2.4 FTP Proxy PUT denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Squid Proxy up to 2.4. It has been classified as problematic. This affects an unknown part of the component FTP Proxy. This manipulation of the argument PUT causes denial of service. This vulnerability is handled as CVE-2001-0843. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Squid Proxy up to 2.4 (Firewall Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component FTP Proxy. The manipulation of the argument PUT with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Squid proxy server 2.4 and earlier allows remote attackers to cause a denial of service (crash) via a mkdir-only FTP PUT request.

The weakness was released 12/06/2001 (Website). The advisory is shared at redhat.com. This vulnerability is known as CVE-2001-0843. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 13901 (Mandrake Linux Security Advisory : squid (MDKSA-2001:088)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86254 (Squid Web Proxy Cache Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (7157), Tenable (13901), SecurityFocus (BID 3354†) and Vulnerability Center (SBV-354†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 13901
Nessus Name: Mandrake Linux Security Advisory : squid (MDKSA-2001:088)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53825
OpenVAS Name: Debian Security Advisory DSA 077-1 (squid)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/21/2001 🔍
11/21/2001 +61 days 🔍
12/06/2001 +15 days 🔍
12/06/2001 +0 days 🔍
12/06/2001 +0 days 🔍
12/12/2002 +371 days 🔍
07/31/2004 +597 days 🔍
07/10/2014 +3631 days 🔍
10/03/2025 +4103 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: redhat.com
Status: Confirmed

CVE: CVE-2001-0843 (🔍)
GCVE (CVE): GCVE-0-2001-0843
GCVE (VulDB): GCVE-100-17701
X-Force: 7157
SecurityFocus: 3354 - Squid Web Proxy Cache Denial of Service Vulnerabilty
Vulnerability Center: 354 - DoS in Squid Web Proxy Cache via FTP PUT Requests, High

Entryinfo

Created: 07/10/2014 23:07
Updated: 10/03/2025 04:20
Changes: 07/10/2014 23:07 (69), 05/06/2019 14:22 (3), 10/03/2025 04:20 (20)
Complete: 🔍
Cache ID: 216::103

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