Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-4423

The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.

Published

2016-06-01T22:59:02.457

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-399
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application sensiolabs symfony ≤ 2.3.40 Yes
Application sensiolabs symfony 2.7.0 Yes
Application sensiolabs symfony 2.7.1 Yes
Application sensiolabs symfony 2.7.2 Yes
Application sensiolabs symfony 2.7.3 Yes
Application sensiolabs symfony 2.7.4 Yes
Application sensiolabs symfony 2.7.5 Yes
Application sensiolabs symfony 2.7.6 Yes
Application sensiolabs symfony 2.7.7 Yes
Application sensiolabs symfony 2.7.8 Yes
Application sensiolabs symfony 2.7.9 Yes
Application sensiolabs symfony 2.7.10 Yes
Application sensiolabs symfony 2.7.11 Yes
Application sensiolabs symfony 2.7.12 Yes
Application sensiolabs symfony 2.8.0 Yes
Application sensiolabs symfony 2.8.1 Yes
Application sensiolabs symfony 2.8.2 Yes
Application sensiolabs symfony 2.8.3 Yes
Application sensiolabs symfony 2.8.4 Yes
Application sensiolabs symfony 2.8.5 Yes
Application sensiolabs symfony 3.0.0 Yes
Application sensiolabs symfony 3.0.1 Yes
Application sensiolabs symfony 3.0.2 Yes
Application sensiolabs symfony 3.0.3 Yes
Application sensiolabs symfony 3.0.4 Yes
Application sensiolabs symfony 3.0.5 Yes
Operating System debian debian_linux 8.0 Yes
References