Access Restriction Bypass Affecting symfony/symfony package, versions >=3.0.0, <3.0.6 >=2.8.0, <2.8.6


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.58% (79th percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-70221
  • published 9 May 2016
  • disclosed 9 May 2016
  • credit Matteo Rossi

How to fix?

Upgrade symfony/symfony to version 3.0.6, 2.8.6 or higher.

Overview

Affected versions of symfony/symfony are vulnerable to Access Restriction Bypass.

Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an unauthenticated bind.

CVSS Scores

version 3.1
Expand this section

Snyk

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