CVE-2024-5050 in SecGate 3600
Summary
by MITRE • 05/17/2024
A vulnerability, which was classified as critical, was found in Wangshen SecGate 3600 up to 20240516. This affects an unknown part of the file /?g=log_import_save. The manipulation of the argument reqfile leads to unrestricted upload. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-264747.
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Analysis
by VulDB Data Team • 06/08/2026
This critical vulnerability exists within the Wangshen SecGate 3600 firewall appliance version 20240516 and earlier, specifically targeting the file /?g=log_import_save component. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize the reqfile argument, creating a path for unrestricted file upload attacks. The vulnerability's classification as critical reflects the severity of potential exploitation and the broad attack surface it provides to threat actors. This issue represents a classic insecure file upload vulnerability that can be exploited through remote network access, eliminating the need for physical presence or local network access to the device.
The technical implementation of this vulnerability allows attackers to bypass normal file upload restrictions by manipulating the reqfile parameter, which likely controls the destination path or file name for uploaded content. This flaw enables adversaries to upload malicious files such as web shells, malware, or other harmful payloads directly to the device's file system. The attack vector operates entirely through network communication without requiring authentication, making it particularly dangerous for network security infrastructure. The vulnerability's remote exploitability means that any attacker with network access to the appliance can potentially execute this attack, regardless of their physical location or network privileges.
The operational impact of this vulnerability extends beyond simple unauthorized file uploads, as it can lead to complete system compromise and persistent backdoor access. Once an attacker successfully uploads malicious content, they can leverage the compromised appliance to monitor network traffic, redirect connections, or establish persistent access points within the network infrastructure. This represents a significant threat to network security posture since firewalls are typically considered trusted network components that should protect rather than endanger network assets. The vulnerability essentially transforms a security device into an attack platform that can be used to compromise the entire network it protects.
Security professionals should implement immediate mitigations including network segmentation to isolate critical firewall appliances, implementing strict access controls and authentication measures, and applying firmware updates as soon as vendor patches become available. The vulnerability aligns with CWE-434 which describes insecure file upload vulnerabilities, and maps to ATT&CK technique T1195.001 for the use of web shell delivery through file upload. Organizations should also conduct thorough network monitoring to detect potential exploitation attempts and implement network-based intrusion detection systems to identify suspicious file upload activities. Regular security assessments of network infrastructure components are essential to identify similar vulnerabilities that may exist in other network security devices and appliances.