CVE-1999-1101 in Lydia
Summary
by MITRE
Kabsoftware Lydia utility uses weak encryption to store user passwords in the lydia.ini file, which allows local users to easily decrypt the passwords and gain privileges.
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Analysis
by VulDB Data Team • 04/18/2026
The vulnerability identified as CVE-1999-1101 represents a critical security flaw in the Kabsoftware Lydia utility where user passwords are stored using weak encryption mechanisms. This issue resides in the lydia.ini configuration file which contains password information in an easily reversible format. The utility fails to implement proper cryptographic standards for password storage, creating a significant attack surface for local users who can readily decrypt stored credentials. This weakness directly violates fundamental security principles regarding credential protection and demonstrates poor implementation of encryption practices within the application.
The technical flaw stems from the implementation of weak encryption algorithms or improperly configured cryptographic functions within the Lydia utility. The encryption used to protect passwords in the lydia.ini file likely employs either no proper encryption at all or utilizes outdated and easily breakable cryptographic methods. This vulnerability falls under the category of weak cryptographic algorithms as classified by CWE-327, where the chosen encryption methods do not provide adequate protection against decryption attempts. The system essentially stores passwords in a format that can be reversed without significant computational effort, making it trivial for local attackers to access sensitive authentication information.
The operational impact of this vulnerability extends beyond simple credential theft, as local users who can decrypt stored passwords gain unauthorized access to systems and resources protected by those credentials. This creates a privilege escalation scenario where attackers can leverage compromised passwords to perform actions with elevated privileges, potentially leading to complete system compromise. The vulnerability affects the confidentiality and integrity of user authentication data, as the encryption mechanism fails to provide the expected security guarantees. From an attacker perspective, this represents a low-effort, high-impact vector for gaining unauthorized access to systems, as demonstrated by ATT&CK technique T1555.003 for credential access through stored credentials.
Mitigation strategies for this vulnerability require immediate implementation of proper password storage mechanisms using strong cryptographic standards. The utility must be updated to employ industry-standard encryption algorithms such as AES with appropriate key lengths and proper key management practices. Organizations should implement secure password storage using salted hash functions with appropriate work factors, as recommended by NIST SP 800-63B. Additionally, access controls should be implemented to restrict read permissions on configuration files containing sensitive information, ensuring that only authorized processes can access these credentials. Regular security audits and code reviews should be conducted to identify similar encryption weaknesses in other applications, particularly focusing on proper cryptographic implementation practices and adherence to established security frameworks such as those defined in the OWASP Top Ten and NIST cybersecurity guidelines.