CVE-2024-54961 in Nagios
Summary
by MITRE • 02/20/2025
Nagios XI 2024R1.2.2 has an Information Disclosure vulnerability, which allows unauthenticated users to access multiple pages displaying the usernames and email addresses of all current users.
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Analysis
by VulDB Data Team • 06/19/2025
The vulnerability identified as CVE-2024-54961 affects Nagios XI version 2024R1.2.2 and represents a critical information disclosure flaw that undermines the system's security posture. This weakness stems from insufficient access controls within the web application's authentication and authorization mechanisms, allowing any remote attacker to bypass authentication requirements and gain unauthorized access to sensitive user information. The vulnerability specifically impacts the application's user management interfaces where personal identification details are exposed without proper verification of user credentials or session authenticity. Such exposure directly violates fundamental security principles of confidentiality and access control that are essential for protecting sensitive organizational data.
The technical implementation of this vulnerability manifests through improper input validation and access control enforcement within the Nagios XI web interface components. Attackers can exploit this flaw by directly accessing specific endpoints or pages that contain user directory information without requiring valid login credentials or session tokens. The vulnerability exists due to inadequate authorization checks that should validate whether a user possesses proper privileges before displaying sensitive data. This type of flaw commonly falls under CWE-200 - Information Exposure and may also relate to CWE-352 - Cross-Site Request Forgery when combined with other vulnerabilities. The system fails to implement proper access control matrices that would restrict data visibility based on user roles and permissions, creating an information leak that exposes the entire user base to unauthorized access.
The operational impact of this vulnerability extends beyond simple data exposure, creating significant risks for organizations relying on Nagios XI for system monitoring and infrastructure management. When attacker can obtain usernames and email addresses of all current users, they gain valuable intelligence for subsequent attack phases including social engineering, credential stuffing, or targeted phishing campaigns. The exposure of user credentials creates opportunities for privilege escalation attacks, as attackers can use the collected information to attempt authentication against other systems or services that may share similar user bases. Organizations may experience reputational damage and regulatory compliance violations, particularly in environments governed by data protection regulations such as gdpr, hipaa, or soc 2 standards. The vulnerability also enables automated enumeration attacks that can systematically harvest user information, making it particularly dangerous for large organizations with extensive user populations.
Mitigation strategies for CVE-2024-54961 should prioritize immediate patching of the affected Nagios XI version to address the underlying access control implementation flaws. Organizations should implement network segmentation and firewall rules to restrict direct access to the Nagios XI web interface from untrusted networks, while also enforcing strong authentication mechanisms including multi-factor authentication for privileged accounts. The application should be configured with proper access control lists that enforce role-based access control policies, ensuring that only authorized personnel can view user information. Regular security audits and penetration testing should be conducted to identify similar access control weaknesses throughout the application stack. Additionally, organizations should implement monitoring solutions to detect unusual access patterns or automated enumeration attempts targeting the affected system components. The remediation process should also include reviewing and strengthening the application's input validation and output encoding mechanisms to prevent similar information disclosure vulnerabilities from emerging in other parts of the system.