CVE-2007-4983 in JetAudio
Summary
by MITRE
Directory traversal vulnerability in the JetAudio.Interface.1 ActiveX control in JetFlExt.dll in jetAudio 7.0.3 Basic and 7.0.3.3016 allows remote attackers to create or overwrite arbitrary local files via a ..\ (dot dot backslash) in the second argument to the DownloadFromMusicStore method. NOTE: some of these details are obtained from third party information. NOTE: this can be leveraged for code execution by overwriting JetAudio.exe, which is launched by the control after completion of the method call.
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Analysis
by VulDB Data Team • 12/09/2024
The CVE-2007-4983 vulnerability represents a critical directory traversal flaw within the JetAudio.Interface.1 ActiveX control component, specifically in the jetFlExt.dll library version bundled with jetAudio 7.0.3 Basic and 7.0.3.3016. This vulnerability stems from inadequate input validation within the DownloadFromMusicStore method, which accepts user-supplied data without proper sanitization or path validation. The flaw manifests when the second argument to this method contains malicious ..\ (dot dot backslash) sequences that manipulate file system paths, allowing attackers to navigate outside the intended directory structure and target arbitrary local files for creation or modification.
The technical exploitation of this vulnerability leverages the inherent trust model of ActiveX controls within web browsers, where the control executes with the privileges of the user running the browser. When an attacker crafts a malicious payload containing directory traversal sequences, the vulnerable DownloadFromMusicStore method processes these sequences without proper validation, resulting in the creation or overwriting of files in locations outside the intended scope. This particular vulnerability is classified as a CWE-22 Directory Traversal weakness, which falls under the broader category of path manipulation attacks that have been consistently identified as critical security flaws in software systems. The attack vector is particularly dangerous because it can be initiated through web-based interfaces, making it accessible to remote attackers without requiring local system access.
The operational impact of CVE-2007-4983 extends beyond simple file manipulation to encompass potential code execution capabilities, making it a severe security concern for affected systems. Attackers can exploit this vulnerability to overwrite the JetAudio.exe executable file, which is launched by the ActiveX control after the method call completes. This creates a persistent code execution vector where malicious payloads can be delivered and executed automatically whenever the vulnerable application runs. The vulnerability also aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter, as it enables attackers to execute arbitrary commands through the compromised application's execution context. Additionally, this flaw demonstrates characteristics of T1566.001 for Phishing with Malicious Attachments, as the vulnerability can be exploited through web-based delivery mechanisms.
Mitigation strategies for CVE-2007-4983 require multiple layers of defense to protect against exploitation. Organizations should immediately disable or remove the vulnerable ActiveX control from affected systems, particularly in environments where web browsers are used to access potentially untrusted content. Browser security configurations should be enhanced to restrict ActiveX control loading and execution, while implementing proper input validation and sanitization for all user-supplied data. System administrators should also consider implementing application whitelisting policies to prevent execution of unauthorized binaries, including the ability to overwrite critical system files. The vulnerability highlights the importance of secure coding practices and input validation, particularly when dealing with file system operations and user-provided data. Regular security assessments and vulnerability scanning should be conducted to identify similar flaws in other ActiveX controls and software components that may be susceptible to path traversal attacks. Given the age of this vulnerability, organizations should prioritize upgrading to newer versions of jetAudio or migrating to alternative media players that do not rely on vulnerable ActiveX technologies, as the original software vendor has likely ceased support for these vulnerable versions.