Access Control Bypass Affecting symfony/security package, versions >=4.2.0, <4.2.7
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Test your applications- Snyk ID SNYK-PHP-SYMFONYSECURITY-174503
- published 24 Apr 2019
- disclosed 17 Apr 2019
- credit Jon Cave
Introduced: 17 Apr 2019
CVE-2019-10911 Open this link in a new tabHow to fix?
Upgrade symfony/security to version 4.2.7 or higher.
Overview
symfony/security is a security component which provides a complete security system for a symfony web application.
Affected versions of this package are vulnerable to Access Control Bypass. The generateCookieHash function used to create a user's remember me cookie does not contain a delimiter during token generation. As such, an attacker could modify the remember me cookie and authenticate as a different user. This attack is only possible if the remember me functionality is enabled and the two users share a password hash or if the password hashes (e.g. UserInterface::getPassword()) are null for all users (which is valid if passwords are checked by an external system, e.g. an SSO).