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GHSA-35c5-28pg-2qg4critical9.8

Symfony Authentication Bypass

Impact

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.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

symfony/security-core Packagist
Affected rangeRecorded fix
From 2.8.0 before 2.8.37Ecosystem versions2.8.37
From 3.0.0 before 3.3.17Ecosystem versions3.3.17
From 3.4.0 before 3.4.7Ecosystem versions3.4.7
From 4.0.0 before 4.0.7Ecosystem versions4.0.7

Version evidence: OSV · GHSA-35c5-28pg-2qg4

View original version evidence (111 explicit versions)
symfony/security Packagist
Affected rangeRecorded fix
From 2.8.0 before 2.8.37Ecosystem versions2.8.37
From 3.0.0 before 3.3.17Ecosystem versions3.3.17
From 3.4.0 before 3.4.7Ecosystem versions3.4.7
From 4.0.0 before 4.0.7Ecosystem versions4.0.7

Version evidence: OSV · GHSA-35c5-28pg-2qg4

View original version evidence (111 explicit versions)
symfony/symfony Packagist
Affected rangeRecorded fix
From 2.8.0 before 2.8.37Ecosystem versions2.8.37
From 3.0.0 before 3.3.17Ecosystem versions3.3.17
From 3.4.0 before 3.4.7Ecosystem versions3.4.7
From 4.0.0 before 4.0.7Ecosystem versions4.0.7

Version evidence: OSV · GHSA-35c5-28pg-2qg4

View original version evidence (111 explicit versions)

Original source description

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.

References