CVE-2014-3780 in VDI-in-a-Box
Summary
by MITRE
Unspecified vulnerability in Citrix VDI-In-A-Box 5.3.x before 5.3.8 and 5.4.x before 5.4.4 allows remote attackers to bypass authentication via unspecified vectors, related to a Java servlet.
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Analysis
by VulDB Data Team • 05/17/2018
Citrix VDI-In-A-Box 5.3.x before 5.3.8 and 5.4.x before 5.4.4 contains an unspecified authentication bypass vulnerability affecting the Java servlet component of the virtual desktop infrastructure solution. This vulnerability represents a critical security flaw that could enable remote attackers to gain unauthorized access to the system without proper authentication credentials. The issue stems from insufficient validation mechanisms within the Java servlet implementation that processes authentication requests. Attackers can exploit this weakness through unspecified vectors that likely involve manipulating authentication parameters or session management components within the servlet framework. The vulnerability falls under CWE-287 which specifically addresses improper authentication issues in software systems. This weakness allows attackers to bypass the intended authentication controls that should verify user identity before granting access to system resources. The impact of such an authentication bypass can be severe as it potentially provides attackers with full administrative access to the VDI environment, enabling them to manipulate virtual desktop sessions, access sensitive data, and control the underlying infrastructure. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and legitimate credentials for unauthorized access. The Java servlet component in Citrix VDI-In-A-Box typically handles web-based administrative functions and user authentication requests, making it a prime target for exploitation. The vulnerability's classification as an authentication bypass indicates that the system fails to properly validate user credentials or maintain secure session states. Attackers could leverage this flaw to establish persistent access to the virtual desktop environment without detection, potentially leading to data breaches, privilege escalation, and system compromise. The unspecified nature of the attack vectors suggests multiple potential exploitation methods including parameter manipulation, session hijacking, or bypassing security controls within the servlet's request processing logic. Organizations using these vulnerable versions face significant risk as the vulnerability allows remote exploitation without requiring any special privileges or access to the target network. The security implications extend beyond simple unauthorized access to include potential lateral movement within the network, as attackers could use compromised VDI instances as entry points to access other systems. This vulnerability directly impacts the integrity and confidentiality of virtual desktop environments, potentially exposing sensitive organizational data and undermining the security posture of enterprises relying on Citrix virtualization solutions. The fix for this vulnerability required patching the Java servlet implementation to properly validate authentication requests and ensure that session management mechanisms function correctly. Organizations should prioritize updating to the patched versions 5.3.8 and 5.4.4 to remediate this critical authentication bypass vulnerability. The incident highlights the importance of proper authentication controls in virtual desktop infrastructure solutions and demonstrates how vulnerabilities in web application components can have far-reaching consequences in enterprise security environments. Security teams should implement monitoring for unauthorized access attempts and verify that authentication controls are functioning properly after applying patches to ensure complete remediation of the vulnerability.