CVE-2024-36604 in O3V2
Summary
by MITRE • 06/04/2024
Tenda O3V2 v1.0.0.12(3880) was discovered to contain a Blind Command Injection via stpEn parameter in the SetStp function. This vulnerability allows attackers to execute arbitrary commands with root privileges.
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Analysis
by VulDB Data Team • 08/15/2024
The vulnerability identified as CVE-2024-36604 affects the Tenda O3V2 router firmware version 1.0.0.12(3880) and represents a critical blind command injection flaw within the SetStp function. This vulnerability resides in the router's web interface handling of the stpEn parameter, which is used to configure Spanning Tree Protocol settings. The flaw enables remote attackers to inject and execute arbitrary commands on the affected device with the highest possible privileges, effectively granting them complete control over the router's operational environment.
The technical nature of this vulnerability places it squarely within the CWE-77 category of command injection flaws, specifically manifesting as a blind command injection where the attacker cannot directly observe the command output but can still execute malicious code. The vulnerability occurs when the device fails to properly sanitize or validate the stpEn parameter before incorporating it into system commands. This lack of input validation creates a pathway for attackers to append malicious commands to legitimate system calls, bypassing normal authentication and authorization mechanisms. The root privilege execution aspect of this vulnerability means that successful exploitation directly compromises the device's core operational capabilities, potentially allowing attackers to modify network configurations, intercept traffic, or establish persistent access points.
Operationally, this vulnerability presents a severe risk to network security infrastructure as it allows attackers to gain complete administrative control over the affected router without requiring legitimate credentials. The impact extends beyond simple command execution, as the compromised device can become a pivot point for lateral movement within the network, enabling attackers to access connected devices and systems. Network administrators face the challenge of identifying compromised devices, as the blind nature of the injection makes traditional detection methods less effective. The vulnerability affects not only the device's immediate functionality but also its role in network security, potentially allowing attackers to disable security features or modify routing tables to redirect traffic.
Mitigation strategies for CVE-2024-36604 should prioritize immediate firmware updates from Tenda to address the command injection flaw, while network administrators should implement network segmentation and monitoring to detect anomalous command execution patterns. Additional protective measures include disabling unnecessary web interfaces, implementing strict access controls, and conducting regular security assessments of network infrastructure. The vulnerability demonstrates the importance of input validation and proper parameter handling in embedded systems, aligning with ATT&CK framework techniques that emphasize command and scripting interpreter usage for persistence and privilege escalation. Organizations should also consider network intrusion detection systems that can identify suspicious command injection patterns and maintain comprehensive network monitoring to detect potential exploitation attempts.