CVE-2006-5355 in Collaboration Suite
Summary
by MITRE
Unspecified vulnerability in Oracle Single Sign-On component in Oracle Application Server 9.0.4.3, 10.1.2.0.2, and 10.1.2.1.0, Collaboration Suite 9.0.4.2 and 10.1.2, and Oracle E-Business Suite and Applications 11.5.10CU2 has unknown impact and remote attack vectors, aka Vuln# SSO01.
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Analysis
by VulDB Data Team • 04/24/2026
The vulnerability identified as CVE-2006-5355 represents a critical security flaw within Oracle Single Sign-On component across multiple Oracle products including Application Server and E-Business Suite. This unspecified vulnerability affects versions 9.0.4.3, 10.1.2.0.2, and 10.1.2.1.0 of Oracle Application Server, along with Collaboration Suite 9.0.4.2 and 10.1.2, and Oracle E-Business Suite and Applications 11.5.10CU2. The designation as Vuln# SSO01 indicates this was classified as a significant single sign-on related weakness within Oracle's security framework. The vulnerability's classification as having unspecified impact and remote attack vectors suggests it could potentially allow unauthorized access or system compromise from external networks without requiring authentication.
The technical nature of this vulnerability lies within the Oracle Single Sign-On component which is responsible for managing authentication and authorization processes across Oracle enterprise applications. This component typically handles user credentials, session management, and access control mechanisms that are fundamental to enterprise security infrastructure. The unspecified nature of the flaw means that the exact technical mechanism by which the vulnerability can be exploited remains unclear, but the potential for remote exploitation indicates that attackers could leverage this weakness from outside the corporate network. Such vulnerabilities in authentication systems pose significant risks as they can potentially provide attackers with unauthorized access to sensitive enterprise resources and data.
The operational impact of CVE-2006-5355 extends beyond simple unauthorized access to encompass potential system compromise and data breaches within affected Oracle environments. Organizations running the vulnerable versions of Oracle Application Server, Collaboration Suite, or E-Business Suite would face exposure to attackers who could potentially gain elevated privileges, access confidential business information, or disrupt critical business processes. The remote attack vector capability means that this vulnerability could be exploited without requiring physical access to the target systems, making it particularly dangerous in enterprise environments where multiple applications and services are interconnected. The unspecified impact suggests that the consequences could range from information disclosure to complete system takeover depending on how attackers might exploit the underlying flaw.
Mitigation strategies for CVE-2006-5355 should prioritize immediate patch deployment from Oracle as the primary remediation measure. Organizations should also implement network segmentation to limit access to vulnerable Oracle components and establish monitoring procedures to detect potential exploitation attempts. Security teams should conduct comprehensive vulnerability assessments to identify all systems running affected Oracle versions and ensure proper access controls are implemented for the Single Sign-On component. The vulnerability aligns with CWE-284 Access Control Issues, specifically related to insufficient access control mechanisms in authentication systems, and could be mapped to ATT&CK techniques involving credential access and privilege escalation. Organizations should also consider implementing additional security controls such as intrusion detection systems, network monitoring, and regular security audits to protect against potential exploitation of this and similar authentication-related vulnerabilities in their Oracle environments.