User Enumeration Affecting symfony/symfony package, versions >=4.2.0, <4.2.12 >=4.3.0, <4.3.8


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.17% (55th percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-535351
  • published 22 Nov 2019
  • disclosed 13 Nov 2019
  • credit Matt Daum

How to fix?

Upgrade symfony/symfony to version 4.2.12, 4.3.8 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 User Enumeration. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality.

CVSS Scores

version 3.1
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Snyk

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

NVD

5.3 medium