CVE-2018-19790

Medium

Description

An open redirect was discovered in Symfony 2.7.x before 2.7.50, 2.8.x before 2.8.49, 3.x before 3.4.20, 4.0.x before 4.0.15, 4.1.x before 4.1.9 and 4.2.x before 4.2.1. By using backslashes in the `_failure_path` input field of login forms, an attacker can work around the redirection target restrictions and effectively redirect the user to any domain after login.

SeverityMedium
CVSS6.1
Exploit probability—
ProductSensiolabs Symfony
PublishedDec 18, 2018
First seenDec 18, 2018

How to fix

Update
  • sensiolabs symfony2.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9, 4.2.1 or later
  • symfony/security-http2.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9, 4.2.1 or later
  • symfony/security2.7.50, 2.8.49, 3.4.19, 4.0.15, 4.1.9, 4.2.1 or later
  • symfony/symfony2.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9 or later

Affected products

ProductAffected versionsFixed in
sensiolabs symfony2.7.0 ≤ v < 2.7.50, 2.8.0 ≤ v < 2.8.49, 3.0.0 ≤ v < 3.4.20, 4.0.0 ≤ v < 4.0.15, 4.1.0 ≤ v < 4.1.9, 4.2.0 ≤ v < 4.2.12.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9, 4.2.1
fedoraproject fedora28—
debian debian_linux8.0—
symfony/security-httpPackagist2.7.38 ≤ v < 2.7.50, 2.8.0 ≤ v < 2.8.49, 3.0.0 ≤ v < 3.4.20, 4.0.0 ≤ v < 4.0.15, 4.1.0 ≤ v < 4.1.9, 4.2.0 ≤ v < 4.2.12.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9, 4.2.1
symfony/securityPackagist2.7.38 ≤ v < 2.7.50, 2.8.0 ≤ v < 2.8.49, 3.0.0 ≤ v < 3.4.19, 4.0.0 ≤ v < 4.0.15, 4.1.0 ≤ v < 4.1.9, 4.2.0 ≤ v < 4.2.12.7.50, 2.8.49, 3.4.19, 4.0.15, 4.1.9, 4.2.1
symfony/symfonyPackagist2.7.38 ≤ v < 2.7.50, 2.8.0 ≤ v < 2.8.49, 3.0.0 ≤ v < 3.4.20, 4.0.0 ≤ v < 4.0.15, 4.1.0 ≤ v < 4.1.92.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9

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CVE-2018-19790 · Sensiolabs Symfony · Dark Radar