Squid Proxy 2.3 Stable4 /tmp symlink

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Squid Proxy 2.3 Stable4. Affected by this issue is some unknown functionality of the file /tmp. Performing a manipulation results in symlink. This vulnerability is known as CVE-2001-0142. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Squid Proxy 2.3 Stable4 (Firewall Software). This affects an unknown code of the file /tmp. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on integrity. The summary by CVE is:

squid 2.3 and earlier allows local users to overwrite arbitrary files via a symlink attack in some configurations.

The bug was discovered 01/10/2001. The weakness was published 03/12/2001 by FIRST (Website). The advisory is shared at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2001-0142. The exploitability is told to be difficult. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 14856 (Debian DSA-019-1 : squid - insecure tempfile handling), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

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

The vulnerability is also documented in the databases at X-Force (5921), Tenable (14856), SecurityFocus (BID 2184†), OSVDB (1712†) and Vulnerability Center (SBV-15138†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.9
VulDB Temp Score: 2.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14856
Nessus Name: Debian DSA-019-1 : squid - insecure tempfile handling
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53782
OpenVAS Name: Debian Security Advisory DSA 019-1 (squid)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2001 🔍
01/10/2001 +0 days 🔍
01/10/2001 +0 days 🔍
01/25/2001 +15 days 🔍
03/12/2001 +46 days 🔍
03/12/2001 +0 days 🔍
09/29/2004 +1297 days 🔍
05/17/2007 +960 days 🔍
07/03/2014 +2604 days 🔍
07/19/2019 +1842 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: archives.neohapsis.com
Researcher: FIRST
Status: Not defined

CVE: CVE-2001-0142 (🔍)
GCVE (CVE): GCVE-0-2001-0142
GCVE (VulDB): GCVE-100-16545
X-Force: 5921
SecurityFocus: 2184 - squid /tmp File Race Condition Vulnerability
OSVDB: 1712 - CVE-2001-0142 - Squid - File Modification Issue
Vulnerability Center: 15138 - Squid <=2.3 Symlink Attack, Low

Entryinfo

Created: 07/03/2014 15:55
Updated: 07/19/2019 11:34
Changes: 07/03/2014 15:55 (73), 07/19/2019 11:34 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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