CVE-2022-24895 : What You Need to Know
Learn about CVE-2022-24895 that affects Symfony PHP framework versions 2.0.0 to 6.2.6, allowing attackers to exploit session-fixation for CSRF token manipulation.
This article provides detailed information about CVE-2022-24895, a vulnerability affecting Symfony, a popular PHP framework.
Understanding CVE-2022-24895
This section delves into the nature of the vulnerability and its impact on systems.
What is CVE-2022-24895?
CVE-2022-24895 affects Symfony, a PHP framework used for web and console applications. The vulnerability arises from Symfony's handling of CSRF tokens during user authentication.
The Impact of CVE-2022-24895
The vulnerability allows same-site attackers to bypass CSRF protection mechanisms by exploiting the session-fixation behavior in Symfony, potentially leading to unauthorized access and data manipulation.
Technical Details of CVE-2022-24895
This section explores specific technical details related to the vulnerability.
Vulnerability Description
Symfony fails to clear CSRF tokens upon user login, leaving them vulnerable to session-fixation attacks. The issue has been addressed in the 4.4 branch of Symfony.
Affected Systems and Versions
The following Symfony versions are affected:
- Symfony versions >= 2.0.0, < 4.4.50
- Symfony versions >= 5.0.0, < 5.4.20
- Symfony versions >= 6.0.0, < 6.0.20
- Symfony versions >= 6.1.0, < 6.1.12
- Symfony versions >= 6.2.0, < 6.2.6
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging session-fixation techniques to manipulate CSRF tokens and override user authentication.
Mitigation and Prevention
This section provides guidance on mitigating the risks associated with CVE-2022-24895.
Immediate Steps to Take
Users are advised to update Symfony to version 4.4.50 or apply patches provided by the Symfony project to address the CSRF token persistence issue.
Long-Term Security Practices
Incorporate secure coding practices, conduct regular security audits, and stay informed about security updates within the Symfony ecosystem.
Patching and Updates
Stay vigilant for security advisories from Symfony and apply patches promptly to protect systems from potential CSRF attacks.