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CVE-2020-25097

Published: 19 March 2021

An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.

Priority

Medium

Cvss 3 Severity Score

8.6

Score breakdown

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian
bionic Does not exist

trusty Does not exist

upstream
Released (4.14)
xenial Does not exist

focal
Released (4.10-1ubuntu1.3)
groovy
Released (4.13-1ubuntu2.1)
hirsute
Released (4.13-1ubuntu3)
Patches:
upstream: http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patch
squid3
Launchpad, Ubuntu, Debian
focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needed

bionic
Released (3.5.27-1ubuntu1.10)
xenial
Released (3.5.12-1ubuntu7.16)

Severity score breakdown

Parameter Value
Base score 8.6
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N