CVE-2007-2081 in MyBlog
Summary
by MITRE
MyBlog 0.9.8 and earlier allows remote attackers to bypass authentication requirements via the admin cookie parameter to certain admin files, as demonstrated by admin/settings.php.
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Analysis
by VulDB Data Team • 10/23/2025
The vulnerability identified as CVE-2007-2081 affects MyBlog version 0.9.8 and earlier, presenting a critical authentication bypass flaw that enables remote attackers to gain unauthorized administrative access to the system. This vulnerability specifically targets the admin cookie parameter handling within certain administrative files, most notably admin/settings.php, where the authentication mechanism fails to properly validate user credentials or session tokens. The flaw resides in the application's insufficient input validation and authentication flow control, allowing malicious actors to manipulate the cookie parameter to assume administrative privileges without proper authorization.
The technical implementation of this vulnerability stems from improper session management and inadequate access control checks within the MyBlog application's administrative interface. When users attempt to access administrative functions through files like admin/settings.php, the system should verify that the user possesses valid administrative credentials before granting access. However, the vulnerable code fails to properly validate the admin cookie parameter, creating a path where attackers can craft malicious cookie values that bypass the authentication mechanism entirely. This type of vulnerability falls under CWE-287 which specifically addresses improper authentication issues in software applications. The weakness represents a fundamental failure in the application's security architecture where session tokens are not properly validated or where the authentication flow contains logical flaws that permit unauthorized access.
The operational impact of this vulnerability is severe and far-reaching for affected systems. Remote attackers can exploit this flaw to gain complete administrative control over the MyBlog installation, potentially leading to full system compromise including data theft, unauthorized modifications, content manipulation, and the ability to install malicious software or backdoors. The vulnerability affects any system running MyBlog version 0.9.8 or earlier where administrative functions are accessible via the web interface. Once exploited, attackers can modify blog settings, add or remove users, access sensitive data, and potentially use the compromised system as a launching point for further attacks within the network infrastructure. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and credential access, as the attacker effectively gains access using administrative privileges without legitimate authentication.
Mitigation strategies for this vulnerability require immediate action to address the core authentication bypass issue. The primary solution involves upgrading to a patched version of MyBlog that properly validates admin cookies and implements robust session management controls. Organizations should also implement network-level protections including firewall rules that restrict access to administrative endpoints, and deploy web application firewalls to monitor and filter suspicious cookie parameter values. Additionally, administrators should ensure that administrative functions are not accessible from untrusted networks and that strong authentication mechanisms including multi-factor authentication are implemented. The vulnerability demonstrates the critical importance of proper input validation and access control implementation in web applications, as highlighted by CWE-287's emphasis on ensuring that all authentication mechanisms properly validate credentials and prevent unauthorized access to privileged functions. Regular security audits and penetration testing should be conducted to identify similar authentication bypass vulnerabilities in other applications within the organization's infrastructure.