CVE-2014-2685

CVE-2014-2685 describes a critical authentication bypass vulnerability in the GenericConsumer class of ZendOpenId (before 2.0.2) and Zend Framework 1 (before 1.12.4). This flaw stems from an improper implementation of the OpenID 2.0 protocol, where the system only verifies that at least one field is signed, rather than all required fields. This allows remote attackers to bypass authentication by leveraging a crafted OpenID assertion. With a CVSS score of 7.5 (High), this vulnerability has a network-based attack vector and low attack complexity, requiring no authentication. Successful exploitation could lead to partial compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting it has not garnered significant attention.