CVE-2026-18641 in Operation and Maintenance Security Management System
Summary
by MITRE • 08/03/2026
A vulnerability was determined in Sangfor Operation and Maintenance Security Management System up to 3.0.13. Affected by this vulnerability is the function com.sbr.fort.foreignDP.DpLoginController of the file /fort/portal_login of the component Login Endpoint. This manipulation causes os command injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 08/03/2026
The vulnerability identified in Sangfor Operation and Maintenance Security Management System version 3.0.13 represents a critical command injection flaw within the system's authentication infrastructure. This security weakness resides in the com.sbr.fort.foreignDP.DpLoginController component, specifically within the /fort/portal_login endpoint that handles user login operations. The vulnerability originates from inadequate input validation and sanitization mechanisms that fail to properly filter or escape user-supplied data before incorporating it into operating system commands. This design flaw creates an exploitable pathway where malicious actors can inject arbitrary operating system commands through the login interface, potentially compromising the entire system infrastructure.
The technical implementation of this vulnerability demonstrates a classic command injection attack vector that operates at the application layer, specifically targeting the authentication mechanism rather than network protocols or physical security controls. The flaw allows attackers to manipulate the login process by injecting malicious payloads that bypass normal authentication procedures and execute arbitrary commands with the privileges of the affected application. This type of vulnerability falls under CWE-77 according to the Common Weakness Enumeration catalog, which categorizes command injection as a critical weakness involving the execution of untrusted input as operating system commands. The attack surface is particularly concerning because it targets the login endpoint, which serves as the primary entry point for legitimate administrative access, making it a high-value target for exploitation.
The operational impact of this vulnerability extends beyond simple unauthorized access, potentially enabling full system compromise and persistent backdoor establishment. Attackers who successfully exploit this vulnerability can execute commands with elevated privileges, potentially leading to data exfiltration, system modification, or complete service disruption. The remote exploitation capability means that attackers do not require physical access or network proximity to the system, significantly expanding the potential attack surface. This vulnerability aligns with ATT&CK technique T1059.001 for command and scripting interpreter, where adversaries use operating system command-line interfaces to execute malicious code. The fact that this exploit has been publicly disclosed increases the risk profile substantially as it removes the element of technical sophistication required for exploitation, making it accessible to a broader range of threat actors including script kiddies and automated attack tools.
The vendor's lack of response to early disclosure attempts creates additional operational concerns for organizations using affected systems. This delayed response pattern is particularly problematic in cybersecurity contexts where rapid remediation is critical to maintaining system integrity. Organizations should implement immediate defensive measures while awaiting official patches or workarounds, including network segmentation, access control restrictions, and monitoring for suspicious authentication patterns. The vulnerability's presence in an operation and maintenance security management system compounds the risk as these platforms typically contain sensitive administrative credentials and privileged access information. Security teams should conduct comprehensive assessments of their Sangfor systems to identify potentially compromised components and implement temporary mitigations such as disabling unnecessary login endpoints or implementing strict input validation rules at network boundaries. Organizations may also need to consider alternative authentication mechanisms or third-party security controls until a proper vendor patch is available.