Access Restriction Bypass Affecting symfony/http-foundation package, versions >=2.7, <2.7.49 >=2.8, <2.8.44 >=3.0.0, <3.3.18 >=3.4, <3.4.14 >=4.0.0, <4.0.14 >=4.1, <4.1.3


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    87.78% (99th percentile)

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  • Snyk ID SNYK-PHP-SYMFONYHTTPFOUNDATION-72253
  • published 2 Aug 2018
  • disclosed 2 Aug 2018
  • credit Michael Cullum

How to fix?

Upgrade symfony/http-foundation to versions 2.7.49, 2.8.44, 3.3.18, 3.4.14, 4.0.14, 4.1.3 or higher

Overview

symfony/http-foundation is a set of reusable PHP components.

Affected versions of this package are vulnerable to Access Restriction Bypass. It maintained support for (legacy) IIS headers (X-Original-URL or X-Rewrite-URL) that allowed users to override the path in a request URL. As a result, it allowed a user to access one URL but have Symfony return a different one which can bypass restrictions on higher level caches and web servers.

CVSS Scores

version 3.1
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Snyk

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

NVD

6.5 medium