CVE-2021-41611 Information

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Description

An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients allowing access to unsafe or hijacked services.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ http://www.openwall.com/lists/oss-security/2021/12/23/2

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5