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Squid 5.x < 5.0.3 Multiple Vulnerabilities

high Web App Scanning Plugin ID 112689

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Synopsis

Squid 5.x < 5.0.3 Multiple Vulnerabilities

Description

According to its self-reported version number, the version of Squid installed on the remote host is 5.x < 5.0.3 or prior to 4.12. It is, therefore, affected by multiple vulnerabilities:

 - Due to an incorrect synchronization, Squid is vulnerable to a denial of service attack when processing objects in an SMP cache. (CVE-2020-14059)

 - Due to use of a potentially dangerous function Squid and the default certificate validation helper are vulnerable to a denial of service attack when processing TLS certificates. (CVE-2020-14058)

 - Due to incorrect input validation Squid is vulnerable to a request smuggling and poisoning attack against the HTTP cache. (CVE-2020-15049) Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Squid version 5.0.3 or later.

See Also

https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5

https://github.com/squid-cache/squid/security/advisories/GHSA-qvf6-485q-vm57

https://github.com/squid-cache/squid/security/advisories/GHSA-w7pw-2m4p-58hr

Plugin Details

Severity: High

ID: 112689

Type: remote

Published: 2/10/2021

Updated: 3/14/2023

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2020-15049

CVSS v3

Risk Factor: High

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2020-15049

Vulnerability Information

CPE: cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Patch Publication Date: 6/30/2020

Vulnerability Publication Date: 6/30/2020

Reference Information

CVE: CVE-2020-14058, CVE-2020-14059, CVE-2020-15049