CVE-2012-3889 in WinAmp
Summary
by MITRE
The in_mod plugin in Winamp before 5.63 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a .IT file.
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Analysis
by VulDB Data Team • 03/26/2021
The vulnerability identified as CVE-2012-3889 affects the in_mod plugin within Winamp media player software versions prior to 5.63. This issue represents a critical security flaw that stems from inadequate input validation and memory management within the plugin's handling of .IT file formats. The .IT file format is a module file format used primarily for music composition and playback, commonly associated with tracker music programs and vintage computer music. The in_mod plugin serves as a decoder for these specific audio formats within the Winamp ecosystem, making it a crucial component for multimedia playback functionality.
The technical nature of this vulnerability manifests through memory corruption issues that occur when processing maliciously crafted .IT files. When a user attempts to play a specially constructed .IT file through Winamp, the in_mod plugin fails to properly validate or sanitize the input data, leading to memory corruption that can result in application crashes or unexpected behavior. This memory corruption vulnerability falls under the category of buffer overflow conditions and memory safety issues as classified by CWE-121, which specifically addresses buffer overflow conditions that can lead to memory corruption. The flaw represents a classic example of how improper input handling can lead to system instability and potential exploitation.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as the potential for unspecified other impacts suggests that attackers might be able to leverage this memory corruption for more sophisticated attacks. The memory corruption could potentially be exploited to execute arbitrary code, depending on the specific memory layout and protection mechanisms in place. This vulnerability affects a widely used media player application, meaning that successful exploitation could impact millions of users who rely on Winamp for audio playback. The attack vector requires remote exploitation through the delivery of a malicious .IT file, which could be distributed through various means including email attachments, malicious websites, or peer-to-peer networks.
Mitigation strategies for this vulnerability include immediate application of the vendor-provided patch that updates the in_mod plugin to properly validate and sanitize input data from .IT files. Users should upgrade to Winamp version 5.63 or later, which contains the necessary fixes to prevent the memory corruption issues. Additionally, system administrators should implement file type filtering and content scanning mechanisms to prevent users from inadvertently opening potentially malicious .IT files. The vulnerability demonstrates the importance of proper input validation and memory management in multimedia applications, particularly those that process user-supplied content. Organizations should also consider implementing network segmentation and access controls to limit the potential impact of such vulnerabilities in enterprise environments. This issue aligns with ATT&CK technique T1203, which covers legitimate user privileges and the exploitation of software vulnerabilities through the manipulation of file formats and media processing components. The vulnerability underscores the need for robust software security practices and regular patch management to prevent exploitation of memory corruption flaws in widely used applications.