CVE-2000-0308 in Netscape
Summary
by MITRE
Insecure file permissions for Netscape FastTrack Server 2.x, Enterprise Server 2.0, and Proxy Server 2.5 in SCO UnixWare 7.0.x and 2.1.3 allow an attacker to gain root privileges.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 04/07/2019
The vulnerability identified as CVE-2000-0308 represents a critical privilege escalation flaw affecting multiple server products from Netscape including FastTrack Server 2.x, Enterprise Server 2.0, and Proxy Server 2.5 operating within SCO UnixWare 7.0.x and 2.1.3 environments. This issue stems from inadequate file permission configurations that create exploitable pathways for unauthorized users to elevate their privileges to the root level. The vulnerability directly violates fundamental security principles by allowing attackers to manipulate system files and resources that should only be accessible to system administrators or root users. The affected software components were widely deployed in enterprise environments during the late 1990s and early 2000s, making this vulnerability particularly dangerous as it could be exploited across numerous production systems.
The technical root cause of this vulnerability lies in the improper configuration of file and directory permissions within the Netscape server installations. Specifically, critical system files and executables were created with overly permissive access controls that allowed non-privileged users to modify or execute components that should have been restricted to root access. This misconfiguration creates a direct pathway for privilege escalation attacks where an attacker can leverage these insecure permissions to gain complete system control. The vulnerability aligns with CWE-732, which describes improper limitation of a privilege set, and represents a classic example of inadequate access control implementation. The flaw operates at the operating system level where file system permissions are not properly enforced, allowing unauthorized users to manipulate core system components that control access to sensitive resources.
From an operational perspective, this vulnerability presents a severe threat to system integrity and confidentiality as it enables complete system compromise with minimal technical expertise required from attackers. Once an attacker gains root privileges through this vulnerability, they can execute arbitrary code, modify system files, install backdoors, steal sensitive data, and completely subvert the security posture of the affected systems. The impact extends beyond individual system compromise to potentially affect entire network infrastructures where these servers serve as critical components. Organizations running these vulnerable versions of Netscape servers faced significant risk of unauthorized access and data breaches, as the vulnerability could be exploited remotely without requiring any special privileges or advanced technical skills. The exploitation process typically involves identifying the insecure files and using the elevated permissions to modify system configurations or install malicious software.
Mitigation strategies for CVE-2000-0308 primarily focus on immediate remediation through proper permission configuration and software updates. System administrators should immediately review and correct file permissions for all Netscape server components, ensuring that critical system files are owned by root and have appropriate restrictive permissions. The recommended approach includes implementing proper access controls using chmod and chown commands to ensure that only authorized users can modify system-critical files. Additionally, organizations should consider implementing the principle of least privilege by restricting file access to only those users and processes that require specific permissions. This vulnerability demonstrates the importance of regular security audits and proper system hardening practices, which align with ATT&CK technique T1068 for local privilege escalation. The most effective long-term solution involves upgrading to patched versions of the affected software products and implementing comprehensive security monitoring to detect any unauthorized access attempts. Organizations should also establish regular vulnerability assessment procedures to identify and remediate similar permission-related issues across their entire infrastructure.