CVE-2012-4032 in WebsitePanel
Summary
by MITRE
Open redirect vulnerability in the login page in WebsitePanel before 1.2.2.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in ReturnUrl to Default.aspx.
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Analysis
by VulDB Data Team • 07/03/2024
The CVE-2012-4032 vulnerability represents a critical open redirect flaw discovered in WebsitePanel versions prior to 1.2.2.1, specifically affecting the login page implementation. This vulnerability stems from inadequate input validation and sanitization of the ReturnUrl parameter within the authentication flow, creating a pathway for malicious actors to manipulate user navigation after successful authentication. The flaw exists in the Default.aspx page which processes the ReturnUrl parameter, allowing attackers to craft malicious URLs that redirect users to arbitrary external domains upon successful login. This type of vulnerability falls under CWE-601 Open Redirect, which is categorized as a security weakness that enables attackers to redirect users to malicious websites without their knowledge or consent.
The technical exploitation of this vulnerability occurs when an attacker constructs a specially crafted URL containing a malicious ReturnUrl parameter and presents it to a victim user. When the victim authenticates through the vulnerable WebsitePanel login page, they are automatically redirected to the attacker-controlled website specified in the ReturnUrl parameter. This mechanism bypasses normal security controls and user verification processes, as the redirect occurs after successful authentication rather than during the initial login attempt. The vulnerability is particularly dangerous because it leverages the legitimate authentication flow to execute malicious redirection, making it difficult for users to distinguish between legitimate and malicious redirects.
The operational impact of CVE-2012-4032 extends beyond simple phishing attacks, as it provides attackers with a sophisticated means of conducting credential theft operations. Users who authenticate to the compromised WebsitePanel system are unknowingly directed to attacker-controlled domains where they may be prompted to enter credentials for services that appear legitimate. This vulnerability enables man-in-the-middle attacks, social engineering campaigns, and credential harvesting operations that can compromise entire user sessions and potentially lead to broader system infiltration. The attack vector aligns with ATT&CK technique T1566.001 Phishing, specifically targeting the initial access phase of the attack lifecycle, while also supporting credential access techniques through the exploitation of trust relationships established during authentication.
Organizations affected by this vulnerability should implement immediate mitigations including input validation and sanitization of all URL parameters, particularly those used in authentication flows. The recommended approach involves validating ReturnUrl parameters against a whitelist of approved domains or implementing absolute URL validation to prevent redirection to external sites. Security patches should be applied immediately to upgrade WebsitePanel to version 1.2.2.1 or later, which contains the necessary fixes for this vulnerability. Additionally, network security controls such as web application firewalls and URL filtering systems should be configured to monitor and block suspicious redirect patterns, while security awareness training should be conducted to educate users about recognizing potentially malicious redirects. The vulnerability also highlights the importance of implementing proper security controls for authentication flows, as outlined in OWASP Top 10 2021 category A07:2021 - Identification and Authentication Failures, which emphasizes the need for secure authentication mechanisms that prevent unauthorized access and redirection attacks.