CVE-2024-41315 in A6000R
Summary
by MITRE • 07/22/2024
TOTOLINK A6000R V1.0.1-B20201211.2000 was discovered to contain a command injection vulnerability via the ifname parameter in the apcli_do_enr_pin_wps function.
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Analysis
by VulDB Data Team • 07/23/2024
The vulnerability identified as CVE-2024-41315 affects the TOTOLINK A6000R router model with firmware version V1.0.1-B20201211.2000 and represents a critical command injection flaw that resides within the wireless configuration management functionality of the device. This vulnerability manifests through the apcli_do_enr_pin_wps function which processes the ifname parameter, creating an avenue for malicious actors to execute arbitrary commands on the affected system with elevated privileges. The flaw stems from insufficient input validation and sanitization of user-supplied parameters, allowing attackers to inject malicious command sequences that bypass normal access controls and authentication mechanisms.
The technical implementation of this vulnerability places it squarely within the Common Weakness Enumeration category of CWE-77, which specifically addresses command injection vulnerabilities. This weakness enables attackers to execute arbitrary commands on the target system by manipulating input parameters that are subsequently processed by system commands. The affected function apcli_do_enr_pin_wps appears to handle wireless network configuration operations, particularly related to WPS (Wi-Fi Protected Setup) enrollment processes. When an attacker supplies a malicious value through the ifname parameter, the system fails to properly validate or escape the input before incorporating it into system command execution contexts, creating a direct path for arbitrary code execution.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with complete control over the affected router's functionality. An attacker who successfully exploits this vulnerability can execute commands with the privileges of the web server process, which typically runs with administrative privileges on the device. This allows for complete system compromise including but not limited to modifying network configurations, establishing persistent backdoors, accessing sensitive network data, and potentially using the compromised device as a launch point for attacks against other systems within the local network. The vulnerability affects both authenticated and unauthenticated attackers depending on the specific attack surface exposed through the web interface, making it particularly dangerous in environments where the router's management interface is accessible from external networks.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from TOTOLINK as the primary remediation measure, though organizations should also implement network segmentation and access controls to limit exposure. Network administrators should disable unnecessary services and ensure that the router's management interface is not directly exposed to untrusted networks. The implementation of web application firewalls and input validation controls can provide additional defense-in-depth layers. According to ATT&CK framework technique T1059.001, adversaries often leverage command injection vulnerabilities to execute malicious code, making this a critical target for defensive measures. Organizations should also consider implementing network monitoring to detect anomalous command execution patterns that might indicate exploitation attempts, and conduct regular security assessments to identify similar vulnerabilities in other network infrastructure components. The vulnerability highlights the importance of proper input validation and output encoding practices in embedded web applications, particularly those handling system-level operations that could lead to privilege escalation.