CVE-2009-1775 in Open Virtual Desktop
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Ulteo Open Virtual Desktop 1.0 allow remote attackers to inject arbitrary web script or HTML via the id parameter to (1) admin/applications.php, (2) admin/appsgroup.php, (3) admin/users.php, (4) admin/usersgroup.php, and (5) admin/tasks.php; (6) show parameter to admin/logs.php; and (7) mode parameter to admin/configuration-partial.php. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 12/10/2017
The vulnerability identified as CVE-2009-1775 represents a critical cross-site scripting flaw affecting Ulteo Open Virtual Desktop version 1.0. This vulnerability stems from inadequate input validation and sanitization mechanisms within the web application's administrative interface, specifically targeting parameters that handle user-supplied data without proper security controls. The affected components include multiple administrative scripts that process user input through various parameter names, creating multiple attack vectors that collectively weaken the application's security posture.
The technical implementation of this vulnerability occurs when the application fails to properly sanitize or escape user-provided input before incorporating it into dynamically generated web content. The id parameter in admin/applications.php, admin/appsgroup.php, admin/users.php, admin/usersgroup.php, and admin/tasks.php represents the primary attack surface where malicious input can be injected and executed within the context of authenticated users' browsers. Additionally, the show parameter in admin/logs.php and mode parameter in admin/configuration-partial.php provide alternative entry points for attackers to exploit similar weaknesses in input handling.
From an operational perspective, this vulnerability creates significant risks for organizations deploying Ulteo Open Virtual Desktop, as it allows remote attackers to execute arbitrary web scripts and HTML content in the browsers of authenticated users. The impact extends beyond simple data theft or defacement, as attackers could potentially establish persistent malicious sessions, escalate privileges, or use the compromised system as a pivot point for further attacks within the network. The vulnerability affects the administrative interface specifically, meaning that successful exploitation could provide attackers with access to sensitive system configurations, user management capabilities, and potentially sensitive log data.
The attack vector for this vulnerability is entirely remote and does not require authentication to initiate the attack, though successful exploitation would likely require an authenticated session to fully leverage the administrative capabilities. This vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, and demonstrates the critical importance of input validation and output encoding in preventing such attacks. The attack patterns associated with this vulnerability would fall under ATT&CK technique T1566.001, which covers social engineering through spearphishing, as attackers could potentially use this vulnerability to deliver malicious payloads to authenticated administrators.
Organizations should implement immediate mitigations including input validation and sanitization for all user-supplied parameters, proper output encoding for dynamic content generation, and regular security assessments of web applications. The most effective remediation involves implementing proper parameter validation and escaping mechanisms, ensuring that all user input is properly sanitized before being processed or displayed in web pages. Additionally, organizations should consider implementing web application firewalls, input validation libraries, and comprehensive security testing procedures to prevent similar vulnerabilities from being introduced in future deployments. The vulnerability demonstrates the importance of following secure coding practices and adhering to OWASP Top Ten security guidelines to prevent injection vulnerabilities in web applications.