CVE-2012-1254 in Segue
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Segue 2.2.10.2 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/17/2019
The CVE-2012-1254 vulnerability represents a critical cross-site scripting flaw identified in Segue 2.2.10.2 and earlier versions of the web application. This vulnerability falls under the broader category of insecure input handling and improper output encoding, which are fundamental security weaknesses that have persisted across numerous web applications. The flaw enables remote attackers to execute malicious scripts within the context of other users' browsers, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of victims. Segue is a web-based learning management system designed for educational institutions, making this vulnerability particularly concerning given the sensitive nature of educational data and user credentials that such systems typically handle.
The technical nature of this vulnerability stems from inadequate sanitization and validation of user-supplied input within the application's processing pipeline. While the specific attack vectors remain unspecified in the CVE description, XSS vulnerabilities typically occur when applications fail to properly encode or escape output before rendering user-provided content. This allows malicious actors to inject script code that executes in the victim's browser context. The vulnerability's classification aligns with CWE-79, which specifically addresses Cross-Site Scripting, and represents a classic example of how insufficient input validation can lead to severe security consequences. Attackers could potentially exploit this weakness by crafting malicious payloads that would be stored or reflected within the application's response, thereby executing in the browsers of unsuspecting users.
The operational impact of CVE-2012-1254 extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities within the compromised environment. Given that Segue is used in educational settings, the exploitation of this vulnerability could result in unauthorized access to student records, course materials, and administrative functions. The remote nature of the attack means that adversaries do not require physical access to the system or network, making the vulnerability particularly dangerous. The potential for session hijacking is significant, as attackers could capture user authentication tokens and impersonate legitimate users. Additionally, the vulnerability could be leveraged to deliver malware payloads or redirect users to phishing sites, further expanding the attack surface and potential damage.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms throughout the application. The most effective immediate solution involves upgrading to Segue versions that contain proper XSS protection measures, as this addresses the root cause of the vulnerability. Organizations should also implement Content Security Policy headers to limit script execution and employ proper HTML escaping for all dynamic content. The remediation efforts should align with security best practices outlined in the OWASP Top Ten and the NIST Cybersecurity Framework, particularly focusing on input validation and output encoding controls. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the system. Additionally, implementing web application firewalls and security monitoring tools can provide additional layers of protection against exploitation attempts, while comprehensive security training for developers can help prevent similar issues in future software releases.