CVE-2005-4338 in Academic Suite
Summary
by MITRE
announcement.pl in Blackboard Learning and Community Portal System in Academic Suite 6.3.1.424, 6.2.3.23, and other versions before 6 allows remote attackers to gain administrator privileges by setting the context parameter to "admin".
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Analysis
by VulDB Data Team • 08/01/2017
The vulnerability identified as CVE-2005-4338 represents a critical access control flaw within the Blackboard Learning and Community Portal System Academic Suite versions 6.3.1.424, 6.2.3.23, and earlier releases. This issue stems from improper privilege validation in the announcement.pl script which serves as a component for managing announcements within the learning management system. The flaw allows unauthenticated remote attackers to escalate their privileges from standard user access to full administrative control by manipulating a single parameter in the web request.
The technical implementation of this vulnerability resides in the context parameter handling mechanism of the announcement.pl script. When an attacker submits a request with the context parameter explicitly set to "admin", the system fails to validate whether the requesting user possesses legitimate administrative credentials or authorization. This parameter manipulation bypasses the normal authentication and authorization checks that should occur before granting administrative privileges. The vulnerability essentially creates a backdoor path that allows any remote user to assume administrative roles without proper authentication, effectively undermining the entire security model of the system.
From an operational impact perspective, this vulnerability poses severe risks to educational institutions relying on Blackboard systems for their learning management needs. Successful exploitation enables attackers to gain complete control over the learning platform, including the ability to modify course content, manage user accounts, access sensitive student data, and potentially compromise the entire institutional network. The remote nature of the attack means that adversaries can exploit this vulnerability from anywhere on the internet without requiring physical access to the system or prior authentication credentials. This makes the vulnerability particularly dangerous as it can be exploited by attackers who may not have any legitimate access to the institution's network or systems.
The vulnerability maps directly to CWE-285, which addresses improper authorization issues in software systems, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for phishing attacks that could be leveraged to exploit this weakness. Organizations utilizing Blackboard Academic Suite systems should immediately implement mitigations including applying the vendor-provided patches, implementing network-level restrictions to limit access to administrative scripts, and conducting thorough security audits of their learning management systems. Additionally, network segmentation and monitoring solutions should be deployed to detect anomalous access patterns that might indicate exploitation attempts. The remediation process requires immediate patch deployment followed by comprehensive access control reviews and privilege management audits to ensure no unauthorized administrative access has occurred during the vulnerability's existence period.