CVE-2008-4470 in CUE
Summary
by MITRE
Stack-based buffer overflow in Numark CUE 5.0 rev2 allows user-assisted attackers to cause a denial of service (application crash) or execute arbitrary code via an M3U playlist file that contains a long absolute pathname.
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Analysis
by VulDB Data Team • 11/03/2024
The vulnerability identified as CVE-2008-4470 represents a critical stack-based buffer overflow flaw in Numark CUE 5.0 revision 2 software, which operates within the digital audio playback and playlist management domain. This vulnerability specifically manifests when the application processes M3U playlist files containing excessively long absolute pathnames, creating a scenario where attacker-controlled input can overwrite adjacent memory locations on the stack. The flaw resides in the software's inadequate input validation mechanisms, particularly in how it handles file path strings during playlist parsing operations. According to CWE-121, this vulnerability falls under stack-based buffer overflow conditions where insufficient bounds checking allows malicious data to overwrite stack memory, potentially leading to arbitrary code execution or application instability.
The technical exploitation of this vulnerability requires an attacker to craft a malicious M3U playlist file containing an abnormally long absolute pathname that exceeds the allocated buffer space within the application's memory stack. When the vulnerable software attempts to process this playlist file, the excessive pathname data overflows the designated buffer, corrupting adjacent stack memory locations including return addresses and local variables. This memory corruption can result in unpredictable application behavior, including immediate crashes that constitute a denial of service condition, or more severely, allow attackers to inject and execute arbitrary code within the application's execution context. The vulnerability demonstrates characteristics consistent with CWE-787, which describes out-of-bounds writes that occur when a program writes data past the boundaries of a buffer, often resulting in memory corruption.
The operational impact of this vulnerability extends beyond simple denial of service scenarios to encompass potential system compromise, particularly in environments where the affected software operates with elevated privileges or where users might be tricked into opening malicious playlist files. Attackers can leverage this vulnerability through social engineering tactics, delivering malicious M3U files via email attachments, compromised websites, or peer-to-peer networks. The attack surface is particularly concerning in professional audio production environments where users frequently exchange playlist files and may not be security-aware. The vulnerability's exploitation aligns with ATT&CK technique T1059, which describes the use of command and scripting interpreters, as the successful exploitation could enable attackers to execute arbitrary code and potentially escalate privileges within the system.
Mitigation strategies for this vulnerability should prioritize immediate software updates from the vendor, as the issue represents a known flaw in a specific software revision that has likely been addressed in subsequent releases. Organizations should implement strict file validation policies that prevent the automatic execution of playlist files from untrusted sources, while also employing network-based intrusion detection systems that can identify and block malicious M3U file patterns. System administrators should consider implementing application whitelisting controls that restrict the execution of potentially vulnerable applications, particularly in high-risk environments. Additionally, regular security assessments should verify that all audio playback software components are updated to the latest secure versions, as this vulnerability demonstrates the importance of maintaining current software patches to prevent exploitation of known memory corruption flaws. The remediation process should also include user education regarding the dangers of opening playlist files from untrusted sources and the implementation of security awareness programs that address the social engineering aspects of this attack vector.