The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.7 / Nagios XI 5.8.9 contains a cross-site scripting (XSS) vulnerability via the Audit Log page search input. This vulnerability allows attackers to manipulate user-supplied input, potentially leading to the execution of arbitrary scripts in the context of a victim's browser. The severity of this vulnerability is classified as medium, with a CVSS score of 5.1.
Risk to organizations includes potential exposure to unauthorized actions performed by attackers in users' sessions. As this vulnerability can be exploited over the network with low complexity and requires only low privileges, it poses a significant risk to the integrity of affected systems. Organizations should prioritize patching immediately.
Currently, there are no known exploits or public proof-of-concept code associated with this vulnerability. Organizations are advised to assess their exposure and implement necessary remediation steps.
Given the nature of this vulnerability and its potential impact, organizations using affected versions of Nagios XI should make this a priority in their security patching schedules.
Vulnerability Details
The vulnerability in question is a cross-site scripting (XSS) flaw, classified under CWE-79. It arises from insufficient validation or escaping of user input on the Audit Log page within Nagios XI. The CVSS score is rated at 5.1, indicating a medium threat level. This vulnerability affects Nagios XI versions prior to CCM 3.1.7 and Nagios XI 5.8.9.
Technical Analysis
The root cause of this vulnerability is the failure to properly validate or escape user-supplied input in the Audit Log page search functionality. The attack vector is via the network, with low attack complexity, and it requires low privileges, along with passive user interaction. The impacts on confidentiality and integrity are classified as low, while there is no impact on availability.
Risk & Impact Analysis
The real-world risk associated with this vulnerability is significant, especially for organizations that rely on Nagios XI for monitoring and management. Attackers may leverage this vulnerability to perform unauthorized actions in the context of authenticated users, leading to potential data breaches or system compromise. Given the medium CVSS score, organizations should address this in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Nagios XI include all versions prior to CCM 3.1.7 and Nagios XI 5.8.9. Organizations using these versions should prioritize applying the appropriate patches.
Mitigation & Remediation
Organizations should implement the latest patches provided by Nagios to remediate this vulnerability. To ensure security, organizations can also consider implementing web application firewalls to filter out malicious input, as well as conducting regular security assessments. For more details on security testing strategies, organizations should refer to penetration testing methodology.
Detection Guidance
Organizations should monitor logs for unusual activity, particularly on the Audit Log page. Behavioral anomalies such as unexpected script execution or deviations from normal user behavior should be investigated. Additionally, network signatures for common XSS attack vectors can be utilized to enhance detection capabilities.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability underscores the importance of input validation in web applications. Organizations should adopt a proactive approach to security by integrating regular security assessments into their development lifecycle. This incident represents a pattern of common vulnerabilities that can be mitigated through effective coding practices. For further insights on vulnerability management, organizations should consult the vulnerability management program and consider how they can improve their security posture.
Organizations should also reflect on the lessons learned from this vulnerability to enhance their security training programs for developers, ensuring they are aware of common attack vectors and how to prevent them.
Lastly, it is vital for organizations to engage in continuous security improvement and to stay informed about emerging threats to adapt their defenses accordingly. For insights into effective security strategies, organizations should explore resources available at penetration testing cost and other relevant security articles.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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