CVE-2023-49290 : What You Need to Know
Discover the impact of CVE-2023-49290, a vulnerability in lestrrat-go/jwx causing a denial of service. Learn about affected systems, exploitation, and mitigation steps.
This article provides detailed information about CVE-2023-49290, a vulnerability that can cause a denial of service in lestrrat-go/jwx.
Understanding CVE-2023-49290
CVE-2023-49290 is a vulnerability in lestrrat-go/jwx, a Go module implementing various JWx technologies. The issue arises when malicious parameters lead to uncontrolled resource consumption, resulting in a denial of service.
What is CVE-2023-49290?
lestrrat-go/jwx is a Go module implementing JWx technologies. A high parameter set in JWE's algorithm PBES2-* could lead to a denial of service. The primary purpose of the parameter is to slow down key derivation, making attacks more resource-intensive.
The Impact of CVE-2023-49290
An attacker setting the parameter to a very high number can cause excessive computational consumption, leading to a denial of service attack. The vulnerability has been addressed in release versions 1.2.27 and 2.0.18.
Technical Details of CVE-2023-49290
This section delves into the specifics of the vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
A p2c parameter set too high in JWE's algorithm PBES2-* could lead to a denial of service in lestrrat-go/jwx. The parameter dictates the number of PBKDF2 iterations needed to derive a key.
Affected Systems and Versions
Versions below 1.2.27 and between 2.0.0 to 2.0.18 are affected by this vulnerability in lestrrat-go/jwx.
Exploitation Mechanism
Attackers exploit the parameter p2c in JWE to cause excessive computational consumption, resulting in a denial of service.
Mitigation and Prevention
Learn how to mitigate the risks posed by CVE-2023-49290 and prevent such vulnerabilities in the future.
Immediate Steps to Take
Users are advised to upgrade to release versions 1.2.27 or 2.0.18 to address the vulnerability. No known workarounds are available.
Long-Term Security Practices
Implement robust security practices, including regular software updates and vulnerability assessments to enhance protection.
Patching and Updates
Stay informed about security patches and updates for lestrrat-go/jwx to safeguard against potential threats and ensure system security.