CVE-2017-7666 in OpenMeetings
Summary
by MITRE
Apache OpenMeetings 1.0.0 is vulnerable to Cross-Site Request Forgery (CSRF) attacks, XSS attacks, click-jacking, and MIME based attacks.
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Analysis
by VulDB Data Team • 10/26/2019
Apache OpenMeetings version 1.0.0 presents a critical security vulnerability landscape that encompasses multiple attack vectors including cross-site request forgery, cross-site scripting, click-jacking, and MIME type manipulation. This vulnerability stems from inadequate input validation and insufficient security controls within the application's web interface, creating multiple pathways for malicious actors to exploit user sessions and manipulate application behavior. The vulnerability is classified under CWE-352 for CSRF, CWE-79 for XSS, and CWE-94 for click-jacking, representing fundamental flaws in web application security architecture.
The CSRF vulnerability allows attackers to perform unauthorized actions on behalf of authenticated users by tricking them into executing malicious requests through crafted web pages. This occurs when the application fails to implement proper anti-CSRF tokens or validation mechanisms, enabling attackers to manipulate user sessions and potentially gain administrative privileges. The XSS vulnerability arises from insufficient output encoding and input sanitization, permitting attackers to inject malicious scripts into web pages viewed by other users. This creates opportunities for session hijacking, credential theft, and data exfiltration through persistent or reflected script injection attacks. The click-jacking vulnerability emerges from missing or inadequate frame-busting techniques and content security policies that prevent legitimate web pages from being embedded within malicious frames, allowing attackers to deceive users into interacting with hidden interface elements.
The operational impact of these vulnerabilities extends beyond simple data theft or session manipulation. Attackers can leverage the combined effects of these flaws to establish persistent access to the system, escalate privileges, and potentially compromise entire network infrastructures. The MIME-based attack vector represents a particularly concerning weakness where the application fails to properly validate file types during upload processes, potentially allowing malicious files to be executed or interpreted incorrectly. These vulnerabilities create a cascading security risk where exploitation of one flaw can facilitate access to others, making the overall system posture extremely precarious. The attack surface is further expanded by the fact that these vulnerabilities affect core application functionality including user authentication, file management, and meeting session controls.
Mitigation strategies must address each vulnerability class through comprehensive security controls and architectural improvements. Implementing robust anti-CSRF token mechanisms with proper session management and request validation can prevent unauthorized operations. Output encoding and input sanitization frameworks should be deployed to neutralize XSS attack vectors, while proper Content Security Policy headers and X-Frame-Options headers can prevent click-jacking attacks. MIME type validation should be enforced through server-side file extension checking, content type verification, and secure file handling procedures. Organizations should also implement web application firewalls, regular security testing, and comprehensive user education to reduce the attack surface. The vulnerabilities align with multiple ATT&CK techniques including T1059 for command and script injection, T1071 for application layer protocols, and T1566 for credential access through social engineering. Regular security updates and patches should be applied immediately upon availability, as this vulnerability affects versions prior to 3.0.0 which included significant security improvements. The affected system requires immediate remediation to prevent exploitation by threat actors who may already be targeting these known weaknesses in legacy deployments.