CVE-1999-0443 in Patrol Agent
Summary
by MITRE
Patrol management software allows a remote attacker to conduct a replay attack to steal the administrator password.
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Analysis
by VulDB Data Team • 04/19/2026
The vulnerability described in CVE-1999-0443 affects patrol management software and represents a significant security flaw that enables remote attackers to execute replay attacks against administrator credentials. This type of attack exploits the lack of proper authentication mechanisms and session management within the software. The flaw allows an unauthorized party to capture legitimate authentication data during network communication and subsequently reuse this information to gain administrative access to the system. The vulnerability specifically targets the authentication process of patrol management software, which is commonly used in security operations and facility management environments where administrative privileges are critical for system control and monitoring.
The technical implementation of this vulnerability stems from inadequate cryptographic protection and authentication protocols within the patrol management software. Attackers can intercept network traffic containing authentication tokens, session identifiers, or password hashes and then replay these captured credentials at a later time to impersonate legitimate administrators. This replay attack capability typically occurs when the software fails to implement proper timestamp validation, nonce usage, or cryptographic session binding. The vulnerability demonstrates a clear violation of security principles related to authentication and session management, which are fundamental requirements in secure system design. According to CWE classification, this issue relates to CWE-310: Cryptographic Issues, specifically addressing weaknesses in authentication mechanisms and session management that enable credential replay attacks.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it compromises the integrity and confidentiality of security operations managed by the patrol software. Administrative access provides attackers with complete control over the system, including the ability to modify patrol schedules, alter security configurations, disable monitoring systems, and potentially access sensitive data about security personnel and facility operations. This compromise can lead to serious consequences including unauthorized surveillance, security breach cover-ups, and complete system takeover. The vulnerability affects organizations that rely on patrol management systems for security operations, potentially impacting critical infrastructure, government facilities, and commercial security environments where such systems are deployed.
Mitigation strategies for this vulnerability require immediate implementation of proper cryptographic protocols and authentication mechanisms within the patrol management software. Organizations should ensure that all authentication exchanges utilize strong cryptographic methods including proper timestamp validation, unique session identifiers, and challenge-response protocols that prevent replay attacks. The implementation of secure communication channels through TLS encryption and proper session management protocols should be enforced. Security patches and updates should be applied to address the underlying authentication flaws, and network monitoring should be enhanced to detect unusual authentication patterns. According to ATT&CK framework, this vulnerability maps to T1110.003: Brute Force: Password Guessing and T1566.002: Phishing: Spearphishing Attachments, as attackers may use this vulnerability to establish persistent access after initial compromise. System administrators should implement regular security assessments and vulnerability scanning to identify similar weaknesses in other security systems that may be susceptible to replay attacks and credential theft.