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Host Header Injection Affecting symfony/symfony package, versions <2.7.49 >=2.8.0, <2.8.44 >=3.3.0, <3.3.18 >=3.4.0, <3.4.14 >=4.0.0, <4.0.14 >=4.1.0, <4.1.2

Severity

 Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.07% (33rd percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-173744
  • published 5 Aug 2018
  • disclosed 31 Jul 2018
  • credit Chaosversum
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Introduced: 31 Jul 2018

CVE-2018-14774 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade symfony/symfony to version 2.7.49, 2.8.44, 3.3.18, 3.4.14, 4.0.14, 4.1.2 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 Host Header Injection. When using HttpCache, the values of the X-Forwarded-Host headers are implicitly set as trusted while this should be forbidden, leading to potential host header injection.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
7.2 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None