Discover the impact of CVE-2017-16653, a vulnerability in Symfony versions prior to specified releases, allowing CSRF attacks due to inadequate token protection. Learn mitigation steps and preventive measures.
A vulnerability was found in Symfony versions prior to 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5, where the CSRF protection did not generate separate tokens for HTTP and HTTPS, making it vulnerable to MITM attacks.
Understanding CVE-2017-16653
This CVE identifies a security vulnerability in Symfony versions that could lead to CSRF attacks due to inadequate token protection.
What is CVE-2017-16653?
This CVE pertains to a flaw in Symfony's CSRF protection mechanism that fails to create distinct tokens for HTTP and HTTPS, exposing the token to MITM attacks over HTTP, which can later be exploited for CSRF attacks over HTTPS.
The Impact of CVE-2017-16653
The vulnerability could allow malicious actors to perform CSRF attacks, potentially compromising the integrity and security of web applications utilizing affected Symfony versions.
Technical Details of CVE-2017-16653
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The CSRF protection in Symfony versions prior to specified releases does not differentiate tokens for HTTP and HTTPS, enabling MITM attacks and subsequent CSRF exploitation.
Affected Systems and Versions
Exploitation Mechanism
The vulnerability arises from the lack of separate token generation for HTTP and HTTPS, allowing attackers to intercept tokens over HTTP and misuse them for CSRF attacks over HTTPS.
Mitigation and Prevention
Protecting systems from CVE-2017-16653 requires immediate actions and long-term security practices.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Ensure timely installation of security patches and updates provided by Symfony to address known vulnerabilities and enhance system security.