CVE-2009-1324 in ASX to MP3 Converter
Summary
by MITRE
Stack-based buffer overflow in Mini-stream ASX to MP3 Converter 3.0.0.7 allows remote attackers to execute arbitrary code via a long URI in a playlist (.m3u) file.
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Analysis
by VulDB Data Team • 11/26/2024
The vulnerability identified as CVE-2009-1324 represents a critical stack-based buffer overflow flaw within the Mini-stream ASX to MP3 Converter version 3.0.0.7 software. This vulnerability resides in the application's handling of playlist files, specifically when processing m3u format files that contain extended Uniform Resource Identifiers. The flaw manifests when the converter encounters a maliciously crafted playlist file containing an excessively long URI string, which causes the application to write beyond the bounds of a fixed-size stack buffer. This type of vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, where insufficient bounds checking allows attackers to overwrite adjacent memory locations on the program stack. The vulnerability is particularly concerning because it can be exploited remotely through the manipulation of playlist files that users might encounter while browsing online or downloading content from untrusted sources. The attack vector leverages the automatic parsing of playlist files by the converter application, making it possible for an attacker to deliver malicious content through seemingly legitimate media playlist formats.
The technical exploitation of this vulnerability requires careful crafting of a malicious m3u playlist file that contains a URI string exceeding the allocated buffer size within the Mini-stream ASX to MP3 Converter. When the application processes this malformed playlist, the excessive URI data overflows into adjacent stack memory regions, potentially overwriting return addresses, function pointers, or other critical program state information. This memory corruption can be leveraged to redirect program execution to malicious code injected into the stack, effectively allowing remote attackers to execute arbitrary code with the privileges of the user running the vulnerable application. The exploitability of this vulnerability is enhanced by the fact that many users may automatically process playlist files from various sources without proper validation, making the attack surface quite broad. According to the ATT&CK framework, this vulnerability maps to the T1203 category of Exploitation for Client Execution, where adversaries leverage client-side application vulnerabilities to execute malicious code on target systems.
The operational impact of CVE-2009-1324 extends beyond simple code execution, as successful exploitation can lead to complete system compromise and persistent access for attackers. The vulnerability affects users who regularly process media playlists, particularly those who download content from untrusted sources or visit compromised websites that serve malicious playlist files. Attackers can leverage this vulnerability to install backdoors, steal sensitive information, or establish persistent access to victim systems. The risk is compounded by the fact that the vulnerable application may be used in both personal and enterprise environments, potentially providing attackers with access to corporate networks or personal data repositories. The vulnerability also demonstrates poor input validation practices in the application's code, indicating a broader security gap in the software development lifecycle where proper bounds checking and memory management were not adequately implemented. Organizations using this converter software should consider immediate remediation through patching or application replacement, as the vulnerability remains exploitable in unpatched systems and poses a significant risk to user security and system integrity. The flaw exemplifies the importance of proper software security testing and input validation, particularly for applications that process user-supplied data from external sources.