Cross-site Request Forgery (CSRF) Affecting symfony/symfony package, versions >=2.7.0, <2.7.38 >=2.8.0, <2.8.31 >=3.0.0, <3.1.0 >=3.1.0, <3.2.0 >=3.2.0, <3.2.14 >=3.3.0, <3.3.13 >=3.4-BETA0, <3.4-BETA5 >=4.0-BETA0, <4.0-BETA5


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.08% (36th percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-70380
  • published 4 Dec 2017
  • disclosed 16 Nov 2017
  • credit Oliver Hoff

How to fix?

Upgrade symfony/symfony to version 2.7.38, 2.8.31, 3.1.0, 3.2.0, 3.2.14, 3.3.13, 3.4-BETA5, 4.0-BETA5 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 Cross-site Request Forgery (CSRF). The implementation of CSRF protection do not use different tokens for HTTP and HTTPS, therefore the token is subject to MITM attacks on HTTP and could then be used in HTTPS context to do CSRF attacks.

CVSS Scores

version 3.1
Expand this section

Snyk

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