CVE-2000-1245 in NetWare
Summary
by MITRE
Multiple unspecified vulnerabilities in NWFTPD.nlm before 5.01o in the FTP server in Novell NetWare 5.1 SP3 allow remote attackers to bypass intended restrictions on anonymous access via unknown vectors.
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Analysis
by VulDB Data Team • 05/04/2026
The vulnerability identified as CVE-2000-1245 represents a critical security flaw in the NWFTPD.nlm FTP server component of Novell NetWare 5.1 Service Pack 3. This issue affects the anonymous access control mechanisms within the file transfer protocol implementation, creating potential pathways for unauthorized system access that could compromise the integrity and confidentiality of network resources. The vulnerability exists in the core file transfer protocol daemon that handles remote connections and user authentication processes within the NetWare operating system environment.
The technical nature of this vulnerability stems from unspecified weaknesses in the anonymous access restriction implementation within the NWFTPD.nlm module. These unspecified vectors likely involve flaws in access control validation, authentication bypass mechanisms, or permission checking routines that govern how anonymous users interact with the FTP server. The vulnerability allows remote attackers to exploit unknown methods that circumvent the intended security controls designed to limit anonymous user capabilities and prevent unauthorized access to system resources. This represents a fundamental breakdown in the security model that separates legitimate anonymous users from malicious actors attempting to gain system access.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential system compromise and data exposure. Attackers who successfully exploit this vulnerability could gain access to sensitive files, system directories, and network resources that should remain restricted to authenticated users or administrators. The anonymous access bypass capability could enable attackers to perform reconnaissance activities, download sensitive data, or potentially escalate privileges within the NetWare environment. This vulnerability particularly affects organizations relying on NetWare 5.1 SP3 systems where anonymous FTP access is enabled, creating a persistent security risk that could be exploited by remote attackers without requiring prior authentication credentials.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security hardening measures. The primary recommendation involves upgrading to NWFTPD.nlm version 5.01o or later, which contains patches addressing the unspecified access control flaws. Organizations should also implement network segmentation to limit exposure of vulnerable NetWare systems, disable unnecessary anonymous FTP access where possible, and establish robust monitoring of FTP server activities. Security controls should include regular vulnerability assessments, network intrusion detection systems, and comprehensive access control reviews to identify and remediate similar weaknesses in other network services. This vulnerability aligns with CWE-284, which describes improper access control issues, and represents a classic example of how authentication bypass flaws can create persistent security risks in network services.
The broader implications of CVE-2000-1245 demonstrate the importance of maintaining up-to-date security patches and implementing comprehensive security monitoring across all network components. Organizations should establish regular security assessment procedures that include vulnerability scanning, penetration testing, and access control reviews to identify similar weaknesses in legacy systems. The vulnerability also highlights the need for robust security practices in enterprise environments where older operating systems and network services continue to operate, as these systems often contain unpatched security flaws that create persistent attack vectors for malicious actors. Proper security posture requires continuous vigilance and proactive remediation of known vulnerabilities to prevent exploitation by threat actors seeking to compromise network infrastructure.