CVE-2003-0052 in Quicktime Streaming Server
Summary
by MITRE
parse_xml.cgi in Apple Darwin Streaming Administration Server 4.1.2 and QuickTime Streaming Server 4.1.1 allows remote attackers to list arbitrary directories.
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Analysis
by VulDB Data Team • 10/28/2024
The vulnerability identified as CVE-2003-0052 affects Apple Darwin Streaming Administration Server version 4.1.2 and QuickTime Streaming Server version 4.1.1, representing a critical directory traversal flaw in the parse_xml.cgi component. This issue stems from inadequate input validation within the server's XML parsing functionality, which fails to properly sanitize user-supplied data before processing directory-related requests. The flaw exists in the server's administrative interface where XML configuration data is parsed, creating an opportunity for malicious actors to exploit the system's file access mechanisms. Security researchers have classified this vulnerability under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as directory traversal or path traversal attacks. The vulnerability enables unauthorized remote code execution through directory listing capabilities, allowing attackers to enumerate system files and potentially access sensitive data stored on the server.
The technical implementation of this vulnerability occurs through the parse_xml.cgi script which processes XML input from remote clients without adequate validation of file paths or directory references. When an attacker submits specially crafted XML data containing directory traversal sequences such as ../ or ..\, the server fails to properly validate these inputs against the intended file system boundaries. This weakness allows the CGI script to interpret and execute directory listing commands that would normally be restricted to authorized users or system administrators. The flaw specifically manifests when the XML parser processes directory path parameters, enabling attackers to bypass normal file system access controls and enumerate arbitrary directories on the server's file system. This vulnerability operates at the application layer and requires no authentication to exploit, making it particularly dangerous as it can be leveraged by anyone with network access to the affected server.
The operational impact of CVE-2003-0052 extends beyond simple directory enumeration, as it provides attackers with the ability to potentially access sensitive configuration files, log data, and other system resources that could contain confidential information. The vulnerability can be exploited to gain insights into the server's internal structure, identify other potential attack vectors, and potentially lead to more severe compromises including privilege escalation or full system takeover. Organizations running affected versions of Apple's streaming servers face significant risk as this vulnerability can be exploited remotely without requiring any credentials or prior access to the system. The impact is particularly severe for media streaming environments where sensitive content and server configurations may be exposed to unauthorized parties. Security analysts have noted that this vulnerability aligns with ATT&CK technique T1083, which covers directory and file system discovery, and can serve as a precursor to more advanced reconnaissance activities. The vulnerability affects not only the immediate file system exposure but also potentially compromises the integrity and confidentiality of streaming server operations.
Mitigation strategies for CVE-2003-0052 require immediate patching of affected systems with the latest security updates from Apple, as the vendor has released fixes addressing the directory traversal vulnerability in subsequent versions of their streaming server software. Organizations should implement network segmentation to limit access to streaming server components and restrict administrative interfaces to trusted networks only. Additionally, input validation mechanisms should be strengthened to ensure all XML data is properly sanitized before processing, and access controls should be implemented to limit directory traversal capabilities within the server's configuration. Security monitoring should be enhanced to detect unusual directory listing activities and XML parsing attempts that could indicate exploitation attempts. The vulnerability demonstrates the importance of proper input validation and access control implementation in web applications, aligning with security best practices outlined in OWASP Top Ten and NIST cybersecurity guidelines. Organizations should also conduct comprehensive vulnerability assessments to identify other potentially affected systems and implement network-based controls to prevent exploitation of similar vulnerabilities in other software components.