CVE-2009-2293 in Tutorial Share
Summary
by MITRE
Optimum Web Design Tutorial Share 3.5.0 and earlier allows remote attackers to bypass authentication and obtain administrative access by setting the usernamed cookie parameter.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2009-2293 affects Optimum Web Design Tutorial Share version 3.5.0 and earlier, representing a critical authentication bypass flaw that enables remote attackers to escalate privileges and gain administrative access to the affected system. This vulnerability resides within the cookie-based authentication mechanism of the web application, specifically targeting how the application processes the usernamed cookie parameter. The flaw allows malicious actors to manipulate the authentication flow without proper credentials, effectively undermining the security controls designed to protect administrative functions.
The technical implementation of this vulnerability stems from inadequate input validation and authentication logic within the web application's session management system. When the application processes the usernamed cookie parameter, it fails to properly validate or sanitize the input, allowing attackers to inject malicious values that manipulate the authentication state. This type of vulnerability typically falls under CWE-287, which addresses improper authentication issues in software systems. The flaw demonstrates a classic case of insecure direct object reference where the application relies on client-supplied data to determine user privileges without proper server-side validation.
From an operational perspective, this vulnerability presents a severe risk to organizations using the affected software, as it enables unauthorized users to assume administrative roles remotely without knowledge of valid credentials. Attackers can exploit this flaw from any location with network access to the vulnerable system, making it particularly dangerous for web applications exposed to the internet. The impact extends beyond simple unauthorized access, as administrative privileges typically grant full control over system configuration, user management, data access, and potentially the ability to install malicious software or exfiltrate sensitive information. This vulnerability directly maps to ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate credentials manipulation.
The exploitation of this vulnerability requires minimal technical skill and can be accomplished through simple cookie manipulation techniques. Attackers typically need only to set the usernamed cookie parameter to administrative values or manipulate the cookie structure to bypass authentication checks. This makes the vulnerability particularly dangerous as it can be exploited by both skilled attackers and automated tools. Organizations should consider implementing comprehensive network segmentation and monitoring solutions to detect unauthorized cookie manipulation attempts, as well as regular security assessments to identify similar authentication bypass vulnerabilities in their web applications.
Mitigation strategies for CVE-2009-2293 should include immediate patching of the affected software to the latest version that addresses the authentication bypass flaw. Organizations should also implement proper input validation and sanitization for all cookie parameters, enforce secure session management practices, and deploy web application firewalls to monitor and block suspicious cookie manipulation attempts. Additionally, regular security audits and penetration testing should be conducted to identify similar authentication vulnerabilities in other applications. The remediation process should include disabling unnecessary cookie parameters, implementing proper access controls, and ensuring that all authentication mechanisms perform robust validation checks before granting administrative privileges. Organizations should also establish incident response procedures to quickly address potential exploitation attempts and maintain detailed logging of authentication events for forensic analysis.