CVE-2007-1303 in RRDBrowse
Summary
by MITRE
Directory traversal vulnerability in rb.cgi in RRDBrowse 1.6 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the file parameter.
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Analysis
by VulDB Data Team • 11/10/2024
The vulnerability identified as CVE-2007-1303 represents a critical directory traversal flaw within the RRDBrowse 1.6 web application, specifically affecting the rb.cgi component. This vulnerability falls under the Common Weakness Enumeration category CWE-22, which defines improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw enables malicious actors to exploit the application's file handling mechanism by manipulating the file parameter through directory traversal sequences using the .. (dot dot) notation.
The technical implementation of this vulnerability occurs within the rb.cgi script where user input containing the file parameter is directly processed without adequate sanitization or validation. When a remote attacker submits a crafted request containing .. sequences in the file parameter, the application fails to properly validate or sanitize the input before attempting to access the specified file path. This lack of input validation creates an opportunity for attackers to navigate outside the intended directory structure and access arbitrary files on the server filesystem. The vulnerability specifically affects RRDBrowse versions 1.6 and earlier, indicating that this was a known issue that persisted across multiple iterations of the software without proper remediation.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the ability to access sensitive files that may contain database credentials, configuration settings, application source code, or other confidential information. Attackers can leverage this vulnerability to read system files, including but not limited to password files, configuration files, and potentially even executable code that could reveal additional attack vectors. The remote nature of this vulnerability means that attackers do not require local system access or authentication to exploit the flaw, making it particularly dangerous in web-facing applications. This vulnerability aligns with the MITRE ATT&CK framework's technique T1083, which describes discovery of file and directory permissions, and T1566, which covers credential access through various methods including path traversal attacks.
The mitigation strategies for CVE-2007-1303 involve immediate application of security patches provided by the software vendor or implementation of input validation controls. Organizations should implement proper parameter validation that strips or rejects directory traversal sequences from user input before processing. The recommended approach includes implementing a whitelist-based validation system that only allows specific, expected file paths or implementing proper path normalization that resolves absolute paths and prevents navigation outside the intended directory structure. Additionally, the principle of least privilege should be applied by ensuring that the web application operates with minimal required permissions and that sensitive files are properly secured. The vulnerability highlights the importance of input validation and output encoding in web applications, as specified in OWASP Top Ten security controls and the Secure Coding practices recommended by various cybersecurity frameworks including NIST SP 800-53 and ISO/IEC 27001 standards.