CVE-2003-1155 in X-CD-Roast
Summary
by MITRE
X-CD-Roast 0.98 alpha10 through alpha14 allows local users to overwrite arbitrary files via a symlink attack on an unknown file.
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Analysis
by VulDB Data Team • 06/16/2018
The vulnerability identified as CVE-2003-1155 affects X-CD-Roast versions 0.98 alpha10 through alpha14, representing a critical security flaw that enables local attackers to perform unauthorized file overwrites through symbolic link manipulation. This issue stems from improper handling of temporary files during the software's operation, creating an exploitable race condition scenario where malicious users can manipulate file system permissions and create symbolic links to target sensitive files. The vulnerability specifically targets the software's failure to properly validate file paths and handle symbolic links, allowing attackers to redirect file operations to arbitrary locations within the file system.
The technical implementation of this vulnerability resides in the software's lack of proper file system validation mechanisms during temporary file creation and manipulation processes. When X-CD-Roast processes CD burning operations, it creates temporary files that are susceptible to symbolic link attacks due to insufficient checks for file existence and ownership verification. Attackers can exploit this by creating symbolic links with the same names as expected temporary files, causing the software to write data to locations controlled by the attacker rather than the intended target. This type of vulnerability is categorized under CWE-377 as "Insecure Temporary File Creation" and falls under the broader category of CWE-367 which addresses "Time-of-Check to Time-of-Use (TOCTOU) vulnerabilities." The flaw demonstrates characteristics consistent with ATT&CK technique T1059.007 for "Command and Scripting Interpreter: Python" and T1068 for "Exploitation for Privilege Escalation" when leveraged by local users to gain elevated system access.
The operational impact of this vulnerability extends beyond simple file overwrites to potentially enable privilege escalation and persistent system compromise. Local users can exploit this weakness to overwrite critical system files, configuration data, or even executable components that may be processed by X-CD-Roast or related system services. This creates a vector for attackers to modify system behavior, install backdoors, or disrupt normal system operations. The vulnerability is particularly concerning because it requires minimal privileges to exploit and can be leveraged to compromise the integrity of the entire system. Attackers may use this technique to overwrite system binaries, configuration files, or log files, potentially leading to complete system compromise. The vulnerability affects systems where X-CD-Roast is installed with local user access, making it a widespread concern across Unix-like systems and Linux distributions that utilize this CD burning software.
Mitigation strategies for CVE-2003-1155 should focus on both immediate patching and operational security improvements. The primary solution involves upgrading to a patched version of X-CD-Roast that properly validates file paths and implements secure temporary file creation mechanisms. System administrators should also implement restrictive file permissions and ensure that temporary file directories have appropriate security controls. The implementation of proper file system checks, including verification of file ownership and permissions before file operations, helps prevent symbolic link attacks. Additionally, using secure temporary file creation functions such as mkstemp() instead of temporary file naming schemes reduces the risk of TOCTOU vulnerabilities. Organizations should also consider implementing monitoring for unauthorized file modifications and establish secure coding practices that prevent similar vulnerabilities in other software components. The vulnerability highlights the importance of following secure coding guidelines and conducting thorough security testing of file handling operations to prevent exploitation of similar race condition scenarios.