CVE-2007-0969 in WebTester
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in WebTester 5.0.20060927 and earlier allow remote attackers to inject arbitrary web script or HTML via unspecified vectors related to POST parameters to multiple files.
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Analysis
by VulDB Data Team • 12/27/2018
The vulnerability identified as CVE-2007-0969 represents a critical cross-site scripting flaw affecting WebTester versions 5.0.20060927 and earlier. This vulnerability resides in the web application's handling of user input through POST parameters, creating a pathway for remote attackers to execute malicious scripts within the context of other users' browsers. The flaw demonstrates characteristics consistent with CWE-79, which specifically addresses cross-site scripting vulnerabilities where untrusted data is improperly incorporated into web pages without proper validation or encoding mechanisms. The vulnerability affects multiple files within the WebTester application, indicating a systemic issue in the input sanitization processes rather than isolated code defects.
The technical exploitation of this vulnerability occurs when attackers submit malicious payloads through POST requests to various endpoints within the WebTester application. These payloads typically contain HTML or JavaScript code that gets executed in the victim's browser when the application displays the malicious content. The unspecified vectors suggest that the vulnerability may exist across multiple input points, making the attack surface broader than typical single-point XSS flaws. This characteristic aligns with ATT&CK technique T1531 which describes the use of cross-site scripting to execute malicious code in the context of a victim's session. The vulnerability's persistence across multiple files indicates that the application likely employs a common input handling mechanism that fails to properly sanitize user-supplied data before rendering it in web responses.
The operational impact of CVE-2007-0969 extends beyond simple data theft or defacement, as it enables attackers to establish persistent sessions within victim browsers. This capability allows for session hijacking, credential theft, and the execution of arbitrary commands on behalf of authenticated users. The vulnerability particularly affects web applications that process user-generated content, making it a significant concern for any system where users can submit data through forms or API endpoints. Attackers could leverage this vulnerability to gain unauthorized access to sensitive information, modify application behavior, or redirect users to malicious websites. The long-term implications include potential data breaches, regulatory compliance violations, and damage to organizational reputation, especially if the application handles sensitive user information or business-critical data.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the WebTester application. The most effective approach involves sanitizing all user-supplied data before processing or displaying it within web pages, utilizing proper encoding techniques such as HTML entity encoding for output contexts. Organizations should implement Content Security Policy headers to limit the execution of inline scripts and restrict the sources from which scripts can be loaded. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components, particularly focusing on areas where user input is processed through POST parameters. The remediation process should include updating to a patched version of WebTester if available, or implementing proper input validation frameworks that prevent XSS attacks at the application level. Additionally, security training for development teams should emphasize secure coding practices and the importance of validating all user inputs to prevent similar vulnerabilities from emerging in future releases.