Authentication Bypass Affecting symfony/symfony package, versions >=2.0.0, <4.4.50 >=5.0.0, <5.4.20 >=6.0.0, <6.0.20 >=6.1.0, <6.1.12 >=6.2.0, <6.2.6


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.22% (61st percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-3266807
  • published 2 Feb 2023
  • disclosed 1 Feb 2023
  • credit Soner Sayakci

How to fix?

Upgrade symfony/symfony to version 4.4.50, 5.4.20, 6.0.20, 6.1.12, 6.2.6 or higher.

Overview

symfony/symfony is a PHP framework for web applications and a set of reusable PHP components.

Affected versions of this package are vulnerable to Authentication Bypass such that if the Symfony HTTP cache system is enabled, this header might be stored and returned to some other clients. An attacker can use this vulnerability to retrieve the victim's session.

CVSS Scores

version 3.1
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Snyk

Recommended
7.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

NVD

8.8 high