CVE-2005-1798 in Monitoring Software
Summary
by MITRE
Directory traversal vulnerability in ServersCheck Monitoring Software 5.9.0 to 5.10.0 allows remote attackers to read arbitrary files via .. (dot dot) sequences in an HTTP request.
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Analysis
by VulDB Data Team • 07/24/2017
The directory traversal vulnerability identified as CVE-2005-1798 affects ServersCheck Monitoring Software versions 5.9.0 through 5.10.0, representing a critical security flaw that enables remote attackers to access arbitrary files on the affected system. This vulnerability stems from inadequate input validation within the HTTP request processing mechanism of the monitoring software, where the application fails to properly sanitize or filter directory traversal sequences. The flaw specifically manifests when the software processes HTTP requests containing .. (dot dot) sequences, which are standard Unix/Linux path traversal indicators used to navigate up directory levels. When such sequences are present in the request, the application does not adequately validate the paths, allowing malicious actors to bypass normal file access controls and retrieve sensitive files from the server's file system.
The technical implementation of this vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability operates by exploiting the absence of proper path validation mechanisms within the web application layer of ServersCheck Monitoring Software. Attackers can construct malicious HTTP requests that include sequences such as ../../../etc/passwd or ../../../windows/system32/drivers/etc/hosts, allowing them to traverse the file system hierarchy and access files that should normally be restricted to authorized users only. This flaw represents a classic example of insufficient input sanitization where the application trusts user-supplied data without proper validation, leading to unauthorized file access and potential information disclosure.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable attackers to access sensitive configuration files, user credentials, system logs, and other critical data stored on the monitored server. In the context of monitoring software, this presents a particularly dangerous scenario since the affected system likely contains detailed information about network infrastructure, system configurations, and potentially administrative credentials. The vulnerability also aligns with several tactics described in the MITRE ATT&CK framework under the initial access and credential access phases, where attackers can leverage directory traversal to gather intelligence about the target environment and potentially escalate privileges. Organizations using ServersCheck Monitoring Software in production environments face significant risk of unauthorized access to their network monitoring data, which could include sensitive operational information about their infrastructure.
Mitigation strategies for CVE-2005-1798 should focus on immediate patching of the affected ServersCheck Monitoring Software versions, as vendors typically provide security updates to address such vulnerabilities. Organizations should implement proper input validation and sanitization mechanisms within their web applications to prevent the processing of directory traversal sequences in HTTP requests. The implementation of a secure coding practice that involves validating all user-supplied input against a whitelist of allowed characters and patterns can effectively prevent such attacks. Additionally, network segmentation and access controls should be implemented to limit the potential impact of successful exploitation, while regular security audits and penetration testing can help identify similar vulnerabilities in other applications. Organizations should also consider implementing web application firewalls that can detect and block suspicious directory traversal patterns in HTTP requests, providing an additional layer of protection against these types of attacks. The vulnerability demonstrates the importance of proper input validation and the principle of least privilege in securing monitoring and administrative applications.