Learn about CVE-2023-49208, a buffer overflow vulnerability in Glewlwyd SSO server before 2.7.6. Understand the impact, affected systems, and mitigation steps.
A buffer overflow vulnerability has been discovered in Glewlwyd SSO server before version 2.7.6, specifically in the scheme/webauthn.c file. This vulnerability could be exploited during FIDO2 credentials validation in webauthn registration.
Understanding CVE-2023-49208
This CVE refers to a potential buffer overflow issue in Glewlwyd SSO server before the 2.7.6 release.
What is CVE-2023-49208?
The vulnerability exists in the authentication process of FIDO2 credentials within webauthn registration, allowing attackers to potentially overflow the buffer.
The Impact of CVE-2023-49208
If exploited, this vulnerability could lead to unauthorized access to sensitive data, potential denial of service, or even remote code execution.
Technical Details of CVE-2023-49208
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The CVE-2023-49208 vulnerability stems from a lack of proper input validation during FIDO2 credentials validation, creating the potential for a buffer overflow.
Affected Systems and Versions
Exploitation Mechanism
Attackers can craft malicious requests during the FIDO2 credentials validation process, triggering a buffer overflow and potentially gaining unauthorized access.
Mitigation and Prevention
To address CVE-2023-49208, immediate action and ongoing security measures are crucial.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security updates and patches released by Glewlwyd to address potential vulnerabilities in a timely manner.