CVE-2014-8580 in Netscaler Gateway
Summary
by MITRE
Citrix NetScaler Application Delivery Controller and NetScaler Gateway 10.5.50.10 before 10.5-52.11, 10.1.122.17 before 10.1-129.11, and 10.1-120.1316.e before 10.1-129.1105.e, when using unspecified configurations, allows remote authenticated users to access "network resources" of other users via unknown vectors.
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Analysis
by VulDB Data Team • 02/24/2022
The vulnerability identified as CVE-2014-8580 affects Citrix NetScaler Application Delivery Controller and NetScaler Gateway appliances across multiple version ranges, specifically targeting configurations that utilize unspecified network resource access mechanisms. This security flaw represents a critical authorization bypass issue that undermines the fundamental security model of these network appliances. The vulnerability exists within the authentication and access control mechanisms of the Citrix NetScaler platform, where properly authenticated users can potentially exploit a weakness to gain unauthorized access to network resources belonging to other users within the same system environment. The affected versions include 10.5.50.10 before 10.5-52.11, 10.1.122.17 before 10.1-129.11, and 10.1-120.1316.e before 10.1-129.1105.e, indicating this represents a widespread issue affecting multiple release streams of the Citrix NetScaler product line. The vulnerability's classification aligns with CWE-284, which addresses improper access control, specifically focusing on insufficient authorization mechanisms that allow unauthorized access to resources.
The technical exploitation of this vulnerability occurs through unknown vectors that leverage the authenticated user context to access network resources that should be restricted to specific user groups or individuals. This represents a privilege escalation scenario where legitimate users can potentially access data, services, or network resources that they should not have authorization to reach. The unspecified nature of the configuration parameters that trigger this vulnerability suggests that it may be related to specific deployment patterns or network topology configurations within the Citrix NetScaler environment. Attackers would need to be authenticated to the system to exploit this weakness, but once successful, they could access sensitive network resources belonging to other users within the same appliance configuration. This type of vulnerability directly impacts the principle of least privilege and can lead to data exposure, service disruption, or further compromise of the network infrastructure through lateral movement.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can enable attackers to potentially compromise entire network segments or access sensitive business-critical applications and data. Organizations using Citrix NetScaler appliances in their network infrastructure face significant risk if this vulnerability is exploited, as it could allow unauthorized users to access network resources that they should not be permitted to reach. The vulnerability's potential for lateral movement within the network infrastructure makes it particularly dangerous, as attackers could use this access to pivot to other systems or escalate their privileges further. This type of access control bypass can result in data breaches, service interruptions, and compliance violations, especially in regulated environments where network segmentation and access control are critical security requirements. The vulnerability affects both Application Delivery Controller and Gateway functionalities, potentially impacting load balancing, application delivery, and secure remote access capabilities.
Organizations should immediately implement mitigations including applying the vendor patches and updates released for the affected Citrix NetScaler versions, as well as reviewing and strengthening the network configuration to ensure proper access control policies are enforced. Security administrators should conduct comprehensive audits of their Citrix NetScaler deployments to identify any configurations that might be vulnerable to this type of attack. The mitigation strategies should include implementing network segmentation, monitoring for unauthorized access attempts, and ensuring that proper user authentication and authorization controls are in place. Additionally, organizations should consider implementing network access control measures and regular security assessments to identify potential exploitation vectors. This vulnerability demonstrates the critical importance of maintaining up-to-date security patches and following security best practices for network infrastructure components, as the attack surface for such appliances can be extensive and potentially impact multiple business functions. The mitigation approach should align with the ATT&CK framework's privilege escalation and defense evasion tactics, ensuring that organizations maintain robust security controls throughout their network infrastructure.