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CVE-2018-11407 — Vulnerability in symfony/security-core — CVE Details

CRITICAL

Symfony Authentication Bypass

Published May 14, 2022Updated April 25, 2024Source: osv

Summary

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.

Advisory Timeline

  • First published May 14, 2022 (1612 days ago).
  • Last revised April 25, 2024 — 713 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update symfony/security-core to 3.4.7 or later
composer require "symfony/security-core:^3.4.7"
Composer
Update symfony/symfony to 4.0.7 or later
composer require "symfony/symfony:^4.0.7"
Composer
Update symfony/security to 3.4.7 or later
composer require "symfony/security:^3.4.7"
Composer
Update symfony/symfony to 3.4.7 or later
composer require "symfony/symfony:^3.4.7"
Composer
Update symfony/symfony to 3.3.17 or later
composer require "symfony/symfony:^3.3.17"
Composer
Update symfony/security to 3.3.17 or later
composer require "symfony/security:^3.3.17"
Composer
Update symfony/security-core to 3.3.17 or later
composer require "symfony/security-core:^3.3.17"
Composer
Update symfony/security to 2.8.37 or later
composer require "symfony/security:^2.8.37"
Composer
Update symfony/security-core to 2.8.37 or later
composer require "symfony/security-core:^2.8.37"
Composer
Update symfony/security-core to 4.0.7 or later
composer require "symfony/security-core:^4.0.7"
Composer
Update symfony/symfony to 2.8.37 or later
composer require "symfony/symfony:^2.8.37"
Composer
Update symfony/security to 4.0.7 or later
composer require "symfony/security:^4.0.7"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (12)

Affects 1 ecosystem: packagist (3).

PackageEcosystemAffectedFixed In
symfony/security-core
packagist
v3.4.0, v3.4.1, v3.4.2, v3.4.3 (+3 more)3.4.7
symfony/symfony
packagist
v4.0.0, v4.0.1, v4.0.2, v4.0.3 (+3 more)4.0.7
symfony/security
packagist
v3.4.0, v3.4.1, v3.4.2, v3.4.3 (+3 more)3.4.7
symfony/symfony
packagist
v3.4.0, v3.4.1, v3.4.2, v3.4.3 (+3 more)3.4.7
symfony/symfony
packagist
v3.0.0, v3.0.1, v3.0.2, v3.0.3 (+56 more)3.3.17
symfony/security
packagist
v3.0.0, v3.0.1, v3.0.2, v3.0.3 (+56 more)3.3.17
symfony/security-core
packagist
v3.0.0, v3.0.1, v3.0.2, v3.0.3 (+56 more)3.3.17
symfony/security
packagist
v2.8.0, v2.8.1, v2.8.10, v2.8.11 (+33 more)2.8.37
symfony/security-core
packagist
v2.8.0, v2.8.1, v2.8.10, v2.8.11 (+33 more)2.8.37
symfony/security-core
packagist
v4.0.0, v4.0.1, v4.0.2, v4.0.3 (+3 more)4.0.7
symfony/symfony
packagist
v2.8.0, v2.8.1, v2.8.10, v2.8.11 (+33 more)2.8.37
symfony/security
packagist
v4.0.0, v4.0.1, v4.0.2, v4.0.3 (+3 more)4.0.7

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-287
    Improper AuthenticationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2018-11407?
Symfony Authentication Bypass This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2018-11407?
CVE-2018-11407 affects symfony/security-core, symfony/symfony and symfony/security. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-11407 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-35c5-28pg-2qg4

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