CVE-2006-5346 in Collaboration Suite
Summary
by MITRE
Unspecified vulnerability in Oracle HTTP Server 9.2.0.7, as used in Oracle Collaboration Suite 9.0.4.2 and Oracle E-Business Suite and Applications 11.5.10CU2, has unknown impact and remote attack vectors related to htdigest, aka Vuln# OHS02.
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Analysis
by VulDB Data Team • 04/24/2026
The vulnerability identified as CVE-2006-5346 represents a critical security flaw within Oracle HTTP Server version 9.2.0.7 that affects multiple Oracle product suites including Collaboration Suite 9.0.4.2 and E-Business Suite Applications 11.5.10CU2. This unspecified vulnerability specifically relates to the htdigest component functionality within the HTTP server implementation, creating potential exposure points for malicious actors seeking to exploit the system. The classification as a remote attack vector indicates that adversaries can potentially leverage this weakness without requiring physical access to the target system, making it particularly concerning for enterprise environments where network exposure is common. The vulnerability's designation as "Vuln# OHS02" suggests it was tracked internally within Oracle's security framework, highlighting the organization's recognition of its severity and potential impact on deployed systems.
The technical nature of this vulnerability stems from the htdigest authentication mechanism implementation within Oracle HTTP Server, which is responsible for managing HTTP digest authentication protocols. Digest authentication is a method of access control that provides better security than basic authentication by using a challenge-response mechanism without transmitting passwords in clear text. However, the unspecified nature of the flaw within this component suggests potential issues such as improper input validation, buffer overflows, or authentication bypass mechanisms that could allow unauthorized access to protected resources. This weakness may manifest through improper handling of authentication tokens, inadequate validation of digest challenge responses, or flawed cryptographic processing of authentication data. The vulnerability's presence in the core HTTP server functionality means that any web applications or services relying on this authentication mechanism could be compromised, potentially allowing attackers to gain unauthorized access to sensitive data or system resources.
The operational impact of CVE-2006-5346 extends beyond simple unauthorized access, as it represents a fundamental weakness in the authentication infrastructure of Oracle's web server implementation. Organizations utilizing affected Oracle products could face significant security risks including data breaches, unauthorized system modifications, and potential lateral movement within their network infrastructure. The remote attack capability means that threat actors can exploit this vulnerability from outside the organization's network perimeter, potentially leading to widespread compromise of enterprise resources. Given that Oracle HTTP Server serves as a critical component in many enterprise web applications, the exploitation of this vulnerability could result in complete system compromise or unauthorized access to sensitive business applications and databases. The unknown impact characterization indicates that the full scope of potential damage may not have been fully understood at the time of reporting, suggesting that the vulnerability could enable various attack vectors including privilege escalation, information disclosure, or denial of service conditions.
Mitigation strategies for this vulnerability should focus on immediate remediation through Oracle's official security patches and updates, as well as implementing network-level controls to limit exposure. Organizations should prioritize patch management processes to ensure all affected Oracle HTTP Server installations are updated with the latest security fixes. Network segmentation and firewall rules should be implemented to restrict access to affected systems, particularly limiting external exposure of the HTTP server components. Monitoring and logging should be enhanced to detect potential exploitation attempts, with particular attention to authentication-related events and unusual access patterns. The vulnerability's classification under CWE categories related to authentication mechanisms and access control suggests that implementing additional security controls such as multi-factor authentication and enhanced session management could provide additional protection layers. Security teams should also conduct comprehensive vulnerability assessments to identify any other systems that may be running the affected Oracle HTTP Server versions, ensuring complete remediation across the enterprise environment. The ATT&CK framework would categorize this vulnerability under credential access and privilege escalation tactics, making it essential for organizations to implement proper security monitoring and incident response procedures to detect and respond to potential exploitation attempts.