CVE-2008-1360 in Nagios
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Nagios before 2.11 allows remote attackers to inject arbitrary web script or HTML via unknown vectors to unspecified CGI scripts, a different issue than CVE-2007-5624.
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Analysis
by VulDB Data Team • 03/16/2021
The vulnerability identified as CVE-2008-1360 represents a cross-site scripting flaw within Nagios monitoring software versions prior to 2.11. This security weakness resides in the application's handling of user input within unspecified CGI scripts, creating an avenue for remote attackers to execute malicious web scripts or HTML code within the context of other users' browsers. The vulnerability operates through unknown vectors that specifically target the web interface components of Nagios, making it particularly dangerous as it can affect multiple CGI scripts across the monitoring platform. Unlike CVE-2007-5624 which addressed a different XSS issue, this vulnerability demonstrates the persistent nature of cross-site scripting problems in web-based monitoring systems where input validation and output sanitization mechanisms prove inadequate.
The technical implementation of this XSS vulnerability stems from insufficient validation of user-supplied data within the CGI scripts that form the web interface of Nagios. Attackers can exploit this weakness by crafting malicious input that gets processed and displayed without proper sanitization, allowing their injected scripts to execute in the browsers of unsuspecting users who access the affected monitoring pages. The unspecified vectors suggest that the vulnerability may manifest through multiple entry points within the CGI framework, potentially affecting various monitoring functions including status displays, configuration interfaces, and reporting features. This broad impact surface makes the vulnerability particularly concerning for organizations relying on Nagios for critical infrastructure monitoring where unauthorized script execution could lead to data exfiltration, session hijacking, or further exploitation of the compromised systems.
The operational impact of this vulnerability extends beyond simple script injection as it can enable attackers to establish persistent access to monitoring environments through session manipulation and credential theft. Organizations using vulnerable Nagios versions face significant risks including unauthorized access to system monitoring data, potential privilege escalation, and the possibility of using the compromised interface as a launching point for attacks against underlying network infrastructure. The attack surface is particularly wide given that Nagios is commonly deployed in enterprise environments where it serves as a central monitoring hub for critical systems, making successful exploitation potentially devastating for security posture and operational continuity. The vulnerability's persistence across multiple CGI scripts within the monitoring framework increases the likelihood of successful exploitation and reduces the effectiveness of partial mitigations.
Mitigation strategies for CVE-2008-1360 primarily involve upgrading to Nagios version 2.11 or later where the XSS vulnerabilities have been addressed through improved input validation and output sanitization mechanisms. Organizations should implement comprehensive web application firewall rules to filter suspicious input patterns and establish strict content security policies that prevent execution of unauthorized scripts within the monitoring interface. Regular security assessments of web-based monitoring tools should include thorough testing of input validation mechanisms and output encoding practices to prevent similar vulnerabilities from emerging. The remediation process should also involve reviewing and updating access controls to limit exposure of the monitoring interface to trusted users only, while implementing additional layers of security such as multi-factor authentication and secure session management to reduce the impact of potential successful attacks. This vulnerability aligns with CWE-79 which categorizes cross-site scripting flaws and represents a common attack pattern documented in the MITRE ATT&CK framework under the technique of web application attacks, specifically targeting the web interface components of security monitoring systems.