CVE-2007-0302 in InstantASP
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in InstantASP 4.1.0 allow remote attackers to inject arbitrary web script or HTML via the (1) SessionID parameter to (a) Logon.aspx, and the (2) Username and (3) Update parameters to (b) Members1.aspx.
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Analysis
by VulDB Data Team • 08/30/2024
The vulnerability identified as CVE-2007-0302 represents a critical cross-site scripting flaw within InstantASP version 4.1.0, a content management system that was widely deployed for web application development and hosting. This vulnerability resides in the application's handling of user input parameters, specifically affecting three distinct endpoints that process user authentication and membership management functions. The flaw allows remote attackers to execute malicious scripts within the context of authenticated user sessions, potentially compromising the security of the entire web application infrastructure.
The technical exploitation of this vulnerability occurs through three distinct attack vectors that demonstrate a fundamental lack of input sanitization and output encoding within the InstantASP framework. The first vector targets the SessionID parameter in the Logon.aspx endpoint, where an attacker can manipulate session identifiers to inject malicious scripts that execute when the application processes authentication requests. The second and third vectors involve the Username parameter in Members1.aspx and the Update parameter in the same endpoint, respectively, both of which permit arbitrary HTML and script injection through user-controlled input fields that are not properly validated or escaped. These vulnerabilities fall under CWE-79, which specifically addresses cross-site scripting flaws where untrusted data is incorporated into web pages without proper sanitization.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform session hijacking, steal user credentials, and potentially escalate privileges within the application. When an authenticated user visits a malicious page that triggers the XSS payload, the injected scripts execute in the user's browser context, potentially allowing attackers to access session cookies, modify user data, or redirect users to malicious sites. The vulnerability's severity is amplified by the fact that it affects core authentication and membership management functions, making it particularly dangerous for applications that handle sensitive user information or require secure authentication mechanisms. According to ATT&CK framework, this vulnerability maps to T1059.001 for command and scripting interpreter and T1566.001 for phishing, as attackers can leverage the XSS to create convincing phishing campaigns that appear legitimate to users.
Mitigation strategies for this vulnerability require immediate implementation of input validation and output encoding measures across all user-controllable parameters within the application. Organizations should implement proper parameter validation to reject suspicious input patterns and ensure that all user-generated content is properly escaped before being rendered in web pages. The most effective remediation involves implementing a comprehensive security framework that includes input sanitization, output encoding, and secure session management practices. Additionally, deploying web application firewalls and implementing content security policies can provide additional layers of protection against such attacks. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other components of the application stack, as this vulnerability demonstrates the critical importance of maintaining secure coding practices throughout the development lifecycle. The remediation process should also include updating to the latest version of InstantASP where these vulnerabilities have been addressed through proper input validation and output encoding mechanisms.