CVE-2024-2049 in SD-WAN Standard
Summary
by MITRE • 03/12/2024
Server-Side Request Forgery (SSRF) in Citrix SD-WAN Standard/Premium Editions on or after 11.4.0 and before 11.4.4.46 allows an attacker to disclose limited information from the appliance via Access to management IP.
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Analysis
by VulDB Data Team • 07/25/2025
Citrix SD-WAN Standard and Premium Editions versions 11.4.0 through 11.4.4.46 contain a critical server-side request forgery vulnerability that enables remote attackers to perform unauthorized access to internal network resources. This vulnerability falls under the Common Weakness Enumeration category CWE-918, which specifically addresses server-side request forgery flaws where applications fail to properly validate and sanitize user-supplied input before using it in HTTP requests to other systems. The flaw exists within the appliance's handling of HTTP requests and allows attackers to manipulate the target of outbound requests, potentially bypassing network segmentation controls that protect internal management interfaces.
The vulnerability manifests when an attacker can manipulate parameters that are subsequently used to construct HTTP requests to internal services. Specifically, the issue occurs in the appliance's management interface where unvalidated input is passed to internal systems without proper sanitization or validation. This allows an attacker to potentially access the appliance's management IP address and potentially disclose limited information from the internal network infrastructure. The attack vector requires remote access to the appliance's web interface and leverages the lack of proper input validation to redirect requests to internal systems that should otherwise be protected from external access.
The operational impact of this vulnerability extends beyond simple information disclosure, as it represents a significant bypass of network security controls that are fundamental to protecting critical infrastructure. Attackers can exploit this weakness to gain insights into internal network topology, potentially identifying other vulnerable systems, and could use the information gathered to plan more sophisticated attacks. The vulnerability affects the appliance's management functionality and could enable attackers to perform reconnaissance activities that would normally be restricted by network segmentation policies. According to MITRE ATT&CK framework, this vulnerability maps to T1046 Network Service Scanning and T1566 Phishing, as it allows for the exploitation of network services and could be used as a stepping stone for further attacks.
Organizations using affected Citrix SD-WAN appliances should immediately implement mitigations including network segmentation to isolate management interfaces, implementing strict input validation controls, and applying the vendor-provided patches that address this specific vulnerability. The recommended solution involves upgrading to Citrix SD-WAN versions 11.4.4.46 or later, which contain the necessary security fixes to prevent the exploitation of this server-side request forgery vulnerability. Additionally, network administrators should review and restrict access to management interfaces through firewalls and access control lists, ensuring that only authorized administrative systems can reach the appliance's management endpoints. The vulnerability demonstrates the importance of validating all user input and implementing proper access controls to prevent unauthorized access to internal network resources that could be exploited for information gathering and further compromise.