CVE-2022-50909 in Algo 8028
Summary
by MITRE • 01/14/2026
Algo 8028 Control Panel version 3.3.3 contains a command injection vulnerability in the fm-data.lua endpoint that allows authenticated attackers to execute arbitrary commands. Attackers can exploit the insecure 'source' parameter by injecting commands that are executed with root privileges, enabling remote code execution through a crafted POST request.
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Analysis
by VulDB Data Team • 01/14/2026
The CVE-2022-50909 vulnerability represents a critical command injection flaw in Algo 8028 Control Panel version 3.3.3 that fundamentally compromises system security through improper input validation. This vulnerability exists within the fm-data.lua endpoint where the application fails to properly sanitize user-supplied input, specifically the 'source' parameter that is processed without adequate security controls. The flaw allows authenticated attackers to inject malicious commands that are subsequently executed with root privileges, creating a severe escalation path from authenticated access to system-level control. The vulnerability stems from inadequate parameter validation and input sanitization mechanisms that fail to distinguish between legitimate user input and potentially malicious command sequences, enabling attackers to manipulate the application's execution flow through crafted POST requests.
The technical exploitation of this vulnerability follows a well-defined pattern where attackers must first authenticate to the system to gain access to the vulnerable endpoint. Once authenticated, they can submit a malicious POST request containing specially crafted command injection payloads within the 'source' parameter. The application processes this parameter without proper sanitization, allowing the injected commands to execute within the system shell with elevated privileges. This command execution occurs at the system level, meaning that successful exploitation results in complete system compromise where attackers can manipulate files, install malware, establish persistence mechanisms, or extract sensitive data from the compromised device. The root privilege execution aspect of this vulnerability eliminates any potential privilege boundaries that might otherwise limit the damage scope, making it particularly dangerous for network infrastructure devices that typically operate with elevated permissions.
The operational impact of CVE-2022-50909 extends beyond simple remote code execution to encompass complete system compromise and potential network infiltration. Organizations relying on Algo 8028 Control Panel devices face significant risk of unauthorized access, data breaches, and potential use as launch points for lateral movement within their networks. The vulnerability's authenticated nature means that attackers must first obtain valid credentials, but this requirement does not significantly reduce the threat level since compromised credentials often lead to broader system access. The attack vector through the fm-data.lua endpoint suggests that the vulnerability affects network management and control functionalities, potentially enabling attackers to manipulate network configurations, redirect traffic, or disable security controls. This type of vulnerability directly impacts the integrity and availability of network infrastructure, as attackers can modify system parameters and potentially cause service disruptions through command execution.
Security mitigations for CVE-2022-50909 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities from emerging in network management systems. The primary immediate action involves updating the Algo 8028 Control Panel to a patched version that implements proper input validation and sanitization for the 'source' parameter. Organizations should also implement network segmentation to limit access to the vulnerable endpoint and enforce strict access controls through multi-factor authentication and role-based access controls. The vulnerability's classification aligns with CWE-77 and CWE-88, which specifically address command injection flaws where user-supplied data is improperly incorporated into system commands. From an ATT&CK framework perspective, this vulnerability maps to T1059.001 (Command and Scripting Interpreter) and T1566 (Phishing) as attackers may need to obtain initial credentials through social engineering before exploiting this command injection flaw. Network monitoring should be enhanced to detect unusual command execution patterns and anomalous POST request behaviors targeting the fm-data.lua endpoint, while also implementing web application firewalls to filter malicious payloads before they reach the vulnerable application components.