Symfony Authentication Bypass

2022-05-1403:10:52

CWE-287

GitHub Advisory Database

github.com

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

Low

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.006 Low

EPSS

Percentile

78.7%

JSON

An issue was discovered in the LDAP component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a “null” password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.

CPENameOperatorVersion
symfony/symfonylt4.0.7
symfony/symfonylt3.4.7
symfony/symfonylt3.3.17
symfony/symfonylt2.8.37
symfony/securitylt4.0.7
symfony/securitylt3.4.7
symfony/securitylt3.3.17
symfony/securitylt2.8.37
symfony/security-corelt4.0.7
symfony/security-corelt3.4.7

Name	Operator	Version
symfony/symfony	lt	4.0.7
symfony/symfony	lt	3.4.7
symfony/symfony	lt	3.3.17
symfony/symfony	lt	2.8.37
symfony/security	lt	4.0.7
symfony/security	lt	3.4.7
symfony/security	lt	3.3.17
symfony/security	lt	2.8.37
symfony/security-core	lt	4.0.7
symfony/security-core	lt	3.4.7