CVE-2007-0611 in Free Lan Intra Internet Portal
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Free LAN In(tra|ter)net Portal (FLIP) before 1.0-RC2 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors in (1) inc.page.php and (2) inc.text.php.
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Analysis
by VulDB Data Team • 10/07/2017
The CVE-2007-0611 vulnerability represents a critical cross-site scripting flaw discovered in the Free LAN In(tra|ter)net Portal (FLIP) software prior to version 1.0-RC2. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. The vulnerability specifically affects two key components of the FLIP application: inc.page.php and inc.text.php files, which are fundamental to the portal's content management and page rendering functionality. These files serve as critical interface points where user input is processed and displayed within the web application context.
The technical flaw manifests through the improper sanitization and validation of user-supplied input data within the affected PHP scripts. Attackers can exploit this vulnerability by injecting malicious HTML or JavaScript code through unspecified vectors that target these particular files. When the vulnerable application processes and renders this malicious input without proper encoding or filtering, the injected scripts execute within the context of other users' browsers who visit affected pages. This creates a persistent threat where malicious actors can manipulate the application's behavior and potentially steal user sessions, credentials, or perform unauthorized actions on behalf of victims.
The operational impact of this vulnerability extends beyond simple data theft or defacement. The presence of XSS vulnerabilities in a portal application like FLIP creates a significant risk for organizations relying on this software for internal network management and communication. Attackers can leverage these flaws to establish persistent access to the network through compromised user sessions, potentially escalating privileges or gaining unauthorized access to sensitive internal resources. The vulnerability affects the core functionality of the portal, making it particularly dangerous for organizations that depend on FLIP for critical network operations and information sharing.
Organizations should implement comprehensive mitigation strategies including immediate patching to version 1.0-RC2 or later, which addresses the input validation issues in the affected PHP files. Additionally, implementing proper output encoding mechanisms, input sanitization, and Content Security Policy (CSP) headers can provide defense-in-depth measures against similar vulnerabilities. The ATT&CK framework categorizes this type of vulnerability under T1566 - Phishing and T1059 - Command and Scripting Interpreter, highlighting the potential for attackers to use these vulnerabilities as initial access points or for maintaining persistence within compromised networks. Regular security assessments and web application firewalls should be deployed to monitor for similar injection flaws in other components of the network infrastructure.