CVE-2026-22095 in DC-80
Summary
by MITRE • 07/13/2026
The network diagnosis endpoint on the web server at port 8090 is vulnerable to command injection.
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Analysis
by VulDB Data Team • 07/13/2026
The vulnerability identified in the network diagnosis endpoint at port 8090 represents a critical command injection flaw that exposes the web server to arbitrary code execution. This type of vulnerability occurs when user-supplied input is improperly sanitized and directly incorporated into system commands without adequate validation or escaping mechanisms. The affected endpoint likely processes diagnostic requests through shell commands that execute network utilities such as ping, traceroute, or netstat, creating an attack surface where malicious actors can inject dangerous command sequences. According to the CWE database, this maps to CWE-77 which specifically addresses command injection vulnerabilities arising from inadequate input validation in command execution contexts. The security implications extend beyond simple network diagnostics as attackers can leverage this weakness to gain unauthorized access to underlying system resources and potentially escalate privileges within the network infrastructure.
The operational impact of this vulnerability is severe and multifaceted, creating opportunities for attackers to perform reconnaissance, execute malicious commands, and establish persistent access to the compromised system. Network diagnosis endpoints are often designed with elevated privileges to perform system-level operations, making them particularly attractive targets for exploitation. Attackers can leverage command injection to execute arbitrary shell commands such as ls, cat, whoami, or even download and execute additional malware payloads. The attack surface is further expanded when considering that many network diagnostic tools rely on system calls that may be vulnerable to path traversal attacks or environment variable manipulation. According to the MITRE ATT&CK framework, this vulnerability aligns with T1059.001 (Command and Scripting Interpreter: PowerShell) and T1068 (Exploitation for Privilege Escalation) techniques, as attackers can use the compromised endpoint to escalate privileges and move laterally within the network infrastructure.
Mitigation strategies must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities from recurring in the system. The primary defense involves implementing strict input validation and sanitization mechanisms that reject or escape special characters used in command construction such as semicolons, ampersands, pipes, and backticks. Developers should adopt a whitelist approach for validating user inputs rather than relying on blacklisting patterns that can be bypassed through encoding techniques or obfuscation methods. Additionally, the principle of least privilege must be enforced by ensuring that diagnostic endpoints operate with minimal required permissions and avoid executing commands with elevated privileges unless absolutely necessary. The implementation of secure coding practices including parameterized command execution, input length restrictions, and proper error handling can significantly reduce the attack surface. Organizations should also consider implementing network segmentation and monitoring solutions to detect anomalous command execution patterns that may indicate exploitation attempts. Regular security assessments, including dynamic application security testing and static code analysis, are essential for identifying similar vulnerabilities in other system components and maintaining overall security posture against command injection threats.