CVE-2004-0160 in Synaesthesia
Summary
by MITRE
Synaesthesia 2.2 and earlier allows local users to execute arbitrary code via a symlink attack on the configuration file.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 04/29/2019
The vulnerability identified as CVE-2004-0160 affects Synaesthesia versions 2.2 and earlier, presenting a critical security flaw that enables local attackers to execute arbitrary code through a carefully crafted symlink attack against the application's configuration file. This vulnerability represents a classic example of a race condition or insecure file handling issue that has been documented in various security frameworks including CWE-377 which specifically addresses insecure temporary file handling. The flaw exploits the manner in which the application processes configuration files, creating an opportunity for malicious users to manipulate the system's file access patterns and gain elevated privileges.
The technical implementation of this vulnerability involves the creation of symbolic links that point to sensitive system files or directories, which are then accessed by the vulnerable Synaesthesia application during its normal operation. When the application attempts to read or write to what it believes is its configuration file, it actually interacts with the malicious symlink, potentially allowing attackers to inject malicious code or modify critical system components. This attack vector operates under the principle of privilege escalation through file system manipulation and aligns with ATT&CK technique T1068 which covers privilege escalation via local exploits.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with a foothold for further system compromise and persistence within the target environment. Local users who can create symbolic links in the application's working directory or related paths can leverage this weakness to escalate their privileges, potentially gaining access to sensitive data, system resources, or other applications running with elevated permissions. The vulnerability demonstrates how seemingly minor file handling practices can create significant security risks, particularly when applications do not properly validate file paths or implement adequate security controls to prevent such attacks.
Mitigation strategies for CVE-2004-0160 should focus on immediate patching of the affected Synaesthesia versions to address the underlying symlink handling issues. System administrators should implement proper file access controls and ensure that configuration file paths are properly validated before processing. The implementation of proper file permission controls, directory permissions, and secure file creation practices can prevent unauthorized symbolic link creation. Additionally, monitoring for suspicious file system activities and implementing least privilege principles for application execution can help reduce the attack surface. Organizations should also consider implementing file integrity monitoring solutions to detect unauthorized modifications to critical system files and configuration resources. The vulnerability highlights the importance of secure coding practices and proper input validation, particularly when dealing with file system operations and configuration management in security-sensitive applications.