CVE-2007-6198 in AquaLogic Interaction
Summary
by MITRE
portal/server.pt in the Plumtree portal in BEA AquaLogic Interaction 5.0.2 through 5.0.4 and 6.0.1.218452 allows wildcards in advanced searches for usernames, which allows remote attackers to enumerate valid usernames via the in_tx_fulltext parameter.
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Analysis
by VulDB Data Team • 06/16/2025
The vulnerability identified as CVE-2007-6198 affects the Plumtree portal component within BEA AquaLogic Interaction versions 5.0.2 through 5.0.4 and 6.0.1.218452. This issue resides in the portal/server.pt file and specifically impacts the advanced search functionality's handling of username enumeration. The flaw manifests when the in_tx_fulltext parameter processes wildcard characters, creating a path for unauthorized users to systematically discover valid usernames within the system. This vulnerability represents a classic example of information disclosure through improper input validation and access control mechanisms.
The technical implementation of this vulnerability stems from inadequate sanitization of user input within the search parameter processing. When attackers submit search queries containing wildcard characters through the in_tx_fulltext parameter, the system fails to properly validate or restrict these inputs, allowing the search functionality to return results that reveal whether specific usernames exist within the system. This behavior directly violates the principle of least privilege and demonstrates poor input validation practices that enable enumeration attacks. The vulnerability operates at the application layer and specifically targets authentication-related components, making it particularly dangerous for systems that rely on username-based access controls.
From an operational impact perspective, this vulnerability creates significant security risks for organizations utilizing affected BEA AquaLogic Interaction versions. Remote attackers can systematically enumerate valid usernames through repeated search queries, potentially leading to account takeover attempts, brute force attacks, or social engineering exploits. The ability to discover valid usernames undermines the security of authentication systems and can serve as a precursor to more serious attacks. This vulnerability aligns with CWE-20, which addresses improper input validation, and represents a form of credential stuffing or account enumeration that can compromise user accounts across the entire system. The impact extends beyond simple information disclosure as it enables further attack vectors that can lead to complete system compromise.
Organizations affected by this vulnerability should implement immediate mitigations including input validation for search parameters, rate limiting on search operations, and disabling wildcard functionality in username search fields. The recommended approach involves configuring the system to reject or sanitize wildcard characters in the in_tx_fulltext parameter before processing search queries. Additionally, implementing proper access controls and monitoring for unusual search patterns can help detect exploitation attempts. This vulnerability demonstrates the importance of secure coding practices and proper parameter validation as outlined in the OWASP Top Ten and NIST Cybersecurity Framework. Security teams should also consider implementing intrusion detection systems that can identify patterns consistent with username enumeration attacks, as specified in the MITRE ATT&CK framework under credential access techniques.