CVE-2008-0209 in Forums 2000
Summary
by MITRE
Open redirect vulnerability in Forums/login.asp in Snitz Forums 2000 3.4.06 and earlier allows remote attackers to redirect users to arbitrary web sites via a URL in the target parameter.
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Analysis
by VulDB Data Team • 11/09/2017
The vulnerability identified as CVE-2008-0209 represents a critical open redirect flaw within the Snitz Forums 2000 version 3.4.06 and earlier installations. This security weakness exists in the Forums/login.asp component where the application fails to properly validate user-supplied input parameters, specifically the target parameter that is used to redirect users after successful authentication. The flaw allows malicious actors to craft specially formatted URLs that would redirect unsuspecting users to attacker-controlled domains, effectively enabling phishing attacks and malicious link redirection. This type of vulnerability falls under the category of CWE-601 Open Redirect, which is classified as a security weakness that occurs when an application redirects users to external domains without proper validation of the destination URL.
The technical implementation of this vulnerability stems from inadequate input sanitization and validation within the authentication flow of the Snitz Forums platform. When users attempt to access protected resources, the system redirects them to the login page and subsequently back to their intended destination. However, the target parameter is not properly validated or sanitized, allowing attackers to inject malicious URLs that bypass normal security checks. The vulnerability can be exploited through simple manipulation of URL parameters, making it particularly dangerous as it requires minimal technical expertise to execute. This weakness creates a pathway for attackers to establish credential theft operations by redirecting users to phishing pages that mimic legitimate authentication interfaces, effectively creating a man-in-the-middle scenario.
The operational impact of this vulnerability extends beyond simple redirection, creating significant risks for organizations utilizing Snitz Forums 2000. Users who are redirected to malicious sites may unknowingly provide credentials to attackers, leading to unauthorized account access and potential data breaches. The vulnerability also enables social engineering campaigns where attackers can leverage the perceived legitimacy of the forum's domain to increase the success rate of phishing attempts. From an attacker's perspective, this flaw provides an effective vector for launching broader campaigns without requiring direct compromise of the target system. The open redirect vulnerability can be combined with other attack vectors to create more sophisticated exploitation scenarios, potentially leading to complete system compromise. Organizations using vulnerable versions of Snitz Forums face reputational damage, regulatory compliance issues, and potential legal ramifications if user credentials are compromised through this vulnerability.
Mitigation strategies for CVE-2008-0209 should prioritize immediate patching of the vulnerable software to the latest available version that addresses the input validation flaw. Organizations should implement strict URL validation mechanisms that ensure redirect destinations are either internal to the application or explicitly approved external domains. The implementation of a whitelist approach for redirect URLs, combined with proper input sanitization and parameter validation, provides the most effective defense against this vulnerability. Network administrators should also consider implementing web application firewalls that can detect and block suspicious redirect patterns, while security monitoring systems should be configured to alert on unusual redirect activities. Additionally, user education programs should be established to help users recognize potential phishing attempts and understand the importance of verifying destination URLs before authentication. The remediation process should also include thorough security testing of all authentication flows to ensure that similar vulnerabilities are not present in other components of the application ecosystem, aligning with best practices recommended in the OWASP Top Ten and NIST cybersecurity guidelines.