Information Exposure Affecting symfony/symfony package, versions >=2.8.0, <3.4.48 >=4.0.0, <4.4.23 >=5.0.0, <5.2.8


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.13% (49th percentile)

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  • Snyk ID SNYK-PHP-SYMFONYSYMFONY-1291065
  • published 12 May 2021
  • disclosed 12 May 2021
  • credit James Isaac, Mathias Brodala

How to fix?

Upgrade symfony/symfony to version 3.4.48, 4.4.23, 5.2.8 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 Information Exposure. The ability to enumerate users is possible without relevant permissions due to different exception messages, depending on whether the user exists or not. It is also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user.

CVSS Scores

version 3.1
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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
Expand this section

NVD

5.3 medium