CVE-2025-27450 in MEAC300-FNADE4
Summary
by MITRE • 07/03/2025
The Secure attribute is missing on multiple cookies provided by the MEAC300-FNADE4. An attacker can trick a user to establish an unencrypted HTTP connection to the server and intercept the request containing the PHPSESSID cookie.
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Analysis
by VulDB Data Team • 02/06/2026
The vulnerability identified as CVE-2025-27450 represents a critical security flaw in the MEAC300-FNADE4 system where multiple cookies lack the Secure attribute implementation. This configuration oversight creates a significant attack vector that directly violates fundamental web application security principles. The absence of the Secure flag on cookies means that sensitive session identifiers can be transmitted over unencrypted HTTP connections, making them susceptible to interception and exploitation by malicious actors positioned within the network traffic path.
This vulnerability falls under the category of insecure cookie handling as defined by CWE-614, which specifically addresses the improper handling of cookies that can lead to session hijacking and authentication bypass scenarios. The MEAC300-FNADE4 device fails to implement proper cookie security measures that should be mandatory for any system handling user sessions or authentication tokens. When users interact with the device through HTTP connections, the PHPSESSID cookie containing the active session identifier becomes exposed to potential eavesdropping attacks, as the cookie is transmitted in plaintext without the necessary encryption safeguards.
The operational impact of this vulnerability extends beyond simple data interception, as it enables attackers to perform session hijacking attacks that can lead to full system compromise. An attacker who successfully intercepts the PHPSESSID cookie through man-in-the-middle attacks or network sniffing can assume the identity of the authenticated user and gain unauthorized access to protected resources. This vulnerability is particularly concerning because it affects the core authentication mechanism of the system, potentially allowing attackers to escalate privileges, access sensitive data, or perform administrative functions without proper authorization. The attack surface is further expanded by the fact that users may unknowingly establish HTTP connections, especially in environments where HTTPS is not enforced or properly configured.
Mitigation strategies for CVE-2025-27450 should focus on immediate implementation of the Secure attribute on all session cookies and enforcement of HTTPS connections throughout the system. Organizations should implement strict HTTP-to-HTTPS redirection policies to prevent users from establishing unencrypted connections, while also ensuring that all cookies include the Secure flag in their configuration. The system should be configured to automatically enforce HTTPS for all communications, and network administrators should implement proper certificate management to ensure that secure connections are properly established. Additionally, regular security audits should verify that all cookies are properly configured with appropriate security attributes including Secure, HttpOnly, and SameSite flags to prevent cross-site scripting and session fixation attacks. This vulnerability demonstrates the critical importance of following security best practices as outlined in the OWASP Top Ten and aligns with ATT&CK technique T1566 which covers credential access through interception of network traffic, making it essential for organizations to address this flaw promptly to maintain system integrity and user data protection.