Squid Web Proxy up to 4.17/5.6 Internal URL exposure of sensitive information

Summaryinfo

A vulnerability was found in Squid Web Proxy up to 4.17/5.6. It has been classified as problematic. This issue affects some unknown processing of the component Internal URL Handler. This manipulation causes exposure of sensitive information. This vulnerability is handled as CVE-2022-41317. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Squid Web Proxy up to 4.17/5.6 (Firewall Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Internal URL Handler. The manipulation with an unknown input leads to a exposure of sensitive information vulnerability. The CWE definition for the vulnerability is CWE-213. The product's intended functionality exposes information to certain actors in accordance with the developer's security policy, but this information is regarded as sensitive according to the intended security policies of other stakeholders such as the product's administrator, users, or others whose information is being processed. As an impact it is known to affect confidentiality. The summary by CVE is:

An issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of internal URIs, there can be Exposure of Sensitive Information about clients using the proxy via an HTTPS request to an internal cache manager URL. This is fixed in 5.7.

The weakness was released 12/26/2022 as GHSA-rcg9-7fqm-83mq. The advisory is shared at github.com. This vulnerability is known as CVE-2022-41317 since 09/23/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 211262 (Fedora 37 : squid (2022-102c59d287)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.7 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at squid-cache.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (211262). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• Squid

Name

• Web Proxy

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6

License

• open-source

Website

• Vendor: http://www.squid-cache.org/

CPE 2.3info

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CPE 2.2info

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

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