CVE-2020-5275 HIGH

CVE-2020-5275: Firewall configured with unanimous strategy was not actually unanimous in symfony/security-http

Vendor Symfony
Product symfony
Weakness CWE-285
Published March 30, 2020
Last update August 4, 2024

CVSS base score

7.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

In symfony/security-http before versions 4.4.7 and 5.0.7, when a `Firewall` checks access control rule, it iterate overs each rule's attributes and stops as soon as the accessDecisionManager decides to grant access on the attribute, preventing the check of next attributes that should have been take into account in an unanimous strategy. The accessDecisionManager is now called with all attributes at once, allowing the unanimous strategy being applied on each attribute. This issue is patched in versions 4.4.7 and 5.0.7.

Key dates

02Disclosure timeline

March 30, 2020 CVE published
August 4, 2024 Record updated