CVE-2003-0329 in CesarFTP
Summary
by MITRE
CesarFTP 0.99g stores user names and passwords in plaintext in the settings.ini file, which could allow local users to gain privileges.
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Analysis
by VulDB Data Team • 06/17/2024
The vulnerability identified as CVE-2003-0329 represents a critical security flaw in CesarFTP version 0.99g that directly compromises user authentication credentials through improper data storage practices. This issue stems from the application's failure to implement adequate encryption or obfuscation mechanisms for sensitive authentication information, creating a persistent security risk that affects all local users with access to the affected system. The vulnerability specifically targets the configuration file management practices within the FTP client software, where user credentials are stored in an easily readable format that poses significant risks to system integrity and user privacy.
The technical implementation flaw resides in the application's configuration file handling mechanism, where the settings.ini file contains plaintext user credentials without any form of encryption or hashing. This design decision violates fundamental security principles and creates an attack surface that allows unauthorized local access to authentication data. The vulnerability can be categorized under CWE-312, which specifically addresses the exposure of sensitive information through improper data storage, and represents a clear violation of secure coding practices that should prevent plaintext storage of authentication credentials. The flaw operates at the application level and requires no specialized tools or network access to exploit, making it particularly dangerous in multi-user environments where local access is possible.
The operational impact of this vulnerability extends beyond simple credential theft to potentially enable privilege escalation and unauthorized system access. Local users who can read the settings.ini file gain immediate access to valid user accounts and their associated passwords, which could facilitate unauthorized access to remote FTP servers, data exfiltration, and potential lateral movement within network environments. This vulnerability directly maps to ATT&CK technique T1566, which covers credential harvesting through various methods including file system access, and represents a significant risk to organizations using this specific FTP client version. The implications are particularly severe in enterprise environments where multiple users may have local access to systems running this vulnerable software, potentially allowing attackers to escalate privileges and gain unauthorized access to sensitive network resources.
Mitigation strategies for this vulnerability require immediate action to address the root cause through proper credential management practices. System administrators should implement immediate file system access controls to restrict read permissions on the settings.ini file, ensuring that only authorized processes can access the sensitive configuration data. The recommended approach includes implementing proper file permissions, using encrypted configuration storage mechanisms, and migrating to more secure FTP client implementations that do not store credentials in plaintext. Organizations should also conduct comprehensive audits of all installed software to identify other instances of this vulnerability and ensure that all authentication credentials are properly encrypted and protected against unauthorized access. The vulnerability serves as a critical reminder of the importance of secure configuration management and the necessity of implementing proper access controls for sensitive system files.