CVE-2025-11284 is a vulnerability identified in Zytec Dalian Zhuoyun Technology's Central Authentication Service version 3. The issue arises from the presence of a hard-coded password within the HTTP Header Handler component, specifically in the /index.php/auth/Ops/git endpoint. Attackers can manipulate the Authorization header to leverage this hard-coded credential, bypassing normal authentication mechanisms. This vulnerability is remotely exploitable without requiring any authentication or user interaction, making it particularly dangerous. The flaw compromises confidentiality, integrity, and availability to a limited extent, as unauthorized access could lead to data exposure or manipulation and potential service disruption. The vendor has been contacted but has not issued any patches or advisories, increasing the risk for organizations relying on this product. The CVSS 4.0 base score of 6.9 reflects a medium severity, with low complexity and no privileges or user interaction needed. While no public exploits are currently known in the wild, the public disclosure of the vulnerability increases the risk of exploitation. The affected product is a central authentication service, which is a critical component in enterprise environments, potentially allowing attackers to bypass authentication controls and escalate privileges if exploited successfully.

For European organizations, the exploitation of this vulnerability could lead to unauthorized access to critical authentication services, undermining the security of internal systems and sensitive data. Given that the affected product is a central authentication service, attackers gaining access could impersonate legitimate users, access confidential information, or disrupt authentication processes, leading to potential data breaches and operational downtime. This risk is heightened in sectors with stringent data protection requirements such as finance, healthcare, and government institutions. The lack of vendor response and patch availability increases exposure time, making proactive mitigation essential. Additionally, exploitation could facilitate lateral movement within networks, increasing the scope of compromise. The medium severity rating indicates that while the vulnerability is serious, it may not directly lead to full system compromise without additional conditions or attacker effort. However, the ease of remote exploitation without authentication makes it a significant threat to organizations relying on this product in Europe.

European organizations using Zytec Dalian Zhuoyun Technology Central Authentication Service version 3 should immediately audit their deployments for the presence of the vulnerable component and the specific endpoint (/index.php/auth/Ops/git). Network-level controls such as firewall rules should be implemented to restrict access to the authentication service from untrusted networks. Employing Web Application Firewalls (WAF) to detect and block suspicious Authorization header manipulations can reduce exploitation risk. Organizations should consider isolating or segmenting the authentication service to limit potential lateral movement. Monitoring and logging of authentication attempts and unusual Authorization header usage should be enhanced to detect potential exploitation attempts early. Since no vendor patch is available, organizations might explore temporary mitigations such as disabling or restricting the vulnerable endpoint if feasible. Additionally, organizations should prepare incident response plans specific to authentication bypass scenarios and keep abreast of any vendor updates or community-developed patches. Finally, consider alternative authentication solutions if the risk cannot be adequately mitigated.