CVE-2001-0355 in Groupwise
Summary
by MITRE
Novell Groupwise 5.5 (sp1 and sp2) allows a remote user to access arbitrary files via an implementation error in Groupwise system policies.
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Analysis
by VulDB Data Team • 05/30/2018
The vulnerability identified as CVE-2001-0355 represents a critical access control flaw within Novell Groupwise 5.5 email and collaboration software. This issue stems from an implementation error in the system policies that govern file access controls, creating a pathway for remote attackers to bypass normal security mechanisms and access files they should not be authorized to view. The vulnerability affects specific service pack versions including sp1 and sp2 of Groupwise 5.5, making it particularly concerning given the widespread deployment of this email server solution in enterprise environments during that era.
The technical nature of this flaw lies in the improper enforcement of access controls within the Groupwise system policy implementation. When the system processes file access requests, it fails to properly validate or authenticate user permissions, allowing remote adversaries to craft malicious requests that circumvent the normal authorization checks. This implementation error typically manifests through improper input validation or insufficient access control checks that should normally occur during file system operations. The vulnerability essentially creates a backdoor mechanism that enables unauthorized file access without proper authentication or authorization.
The operational impact of this vulnerability is severe as it allows remote attackers to potentially access sensitive corporate data, user information, and system files that should remain protected. In enterprise environments where Groupwise serves as a primary email and collaboration platform, this flaw could lead to data breaches, intellectual property theft, and unauthorized system access. The remote nature of the attack means that adversaries do not require physical access to the system or local network presence, making the vulnerability particularly dangerous. Organizations using Groupwise 5.5 were exposed to significant risk of unauthorized data access and potential system compromise.
This vulnerability maps to CWE-284, which describes improper access control in software implementations, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for spearphishing with attachments. The flaw represents a classic example of insufficient authorization checks in network services, where the system fails to properly enforce security boundaries. Organizations should have implemented immediate mitigations including applying the vendor patches, network segmentation, and monitoring for unauthorized access attempts. The vulnerability highlights the critical importance of proper access control implementation and the potential for remote exploitation in enterprise email systems, emphasizing the need for comprehensive security testing of system policy implementations.
The broader implications of this vulnerability demonstrate how seemingly minor implementation errors in access control systems can create significant security risks. This flaw underscores the necessity of thorough security testing during software development, particularly for systems handling sensitive corporate communications. Organizations should have conducted vulnerability assessments to identify similar access control weaknesses in their email infrastructure and implemented robust monitoring systems to detect unauthorized file access attempts. The incident serves as a reminder of the critical need for maintaining up-to-date security patches and proper access control mechanisms in enterprise email systems.