CVE-2023-4101 Explained : Impact and Mitigation
Learn about CVE-2023-4101, a high-severity vulnerability in IDM Sistemas QSige allowing unauthorized access. Impact on confidentiality and mitigation steps.
This CVE, assigned by INCIBE, was published on October 3, 2023, and is related to multiple vulnerabilities found in IDM Sistemas QSige. The vulnerability was discovered by Pablo Arias Rodríguez, Jorge Alberto Palma Reyes, and Rubén Barberá Pérez.
Understanding CVE-2023-4101
This CVE pertains to vulnerabilities in the QSige login SSO that lacks an access control mechanism to verify if the user requesting a resource has the necessary permissions. It requires users to log into the application as a prerequisite.
What is CVE-2023-4101?
The vulnerability in CVE-2023-4101 involves an authorization bypass through a user-controlled key (CWE-639). This could potentially lead to unauthorized access to resources within the QSige application.
The Impact of CVE-2023-4101
With a CVSS base score of 8.8 (High severity), the vulnerability has a significant impact on confidentiality, integrity, and availability within the affected systems. It has a low complexity for attackers to exploit and requires only low privileges.
Technical Details of CVE-2023-4101
The vulnerability allows attackers to bypass authorization controls, leading to unauthorized access to resources within the QSige application.
Vulnerability Description
The QSige login SSO lacks an access control mechanism, allowing users to bypass authorization and potentially access resources without the necessary permissions.
Affected Systems and Versions
The affected product is QSige by IDM Sistemas, specifically version 3.0.0.0.
Exploitation Mechanism
Attackers can exploit this vulnerability by logging into the QSige application without the required permissions, thus bypassing the access control mechanism.
Mitigation and Prevention
To mitigate the risks associated with CVE-2023-4101, immediate action and long-term security practices are recommended.
Immediate Steps to Take
Users and administrators should ensure that access control mechanisms are properly implemented and that only authorized users have permissions to access resources within the QSige application.
Long-Term Security Practices
Regular security assessments and audits should be conducted to identify and address vulnerabilities in the application. Additionally, user permissions and access controls should be reviewed and updated regularly.
Patching and Updates
It is crucial to apply the latest version of the affected product, where the reported vulnerabilities have been fixed to prevent exploitation of this vulnerability.