CVE-2024-41320 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 get_apcli_conn_info function.
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Analysis
by VulDB Data Team • 07/23/2024
The vulnerability identified as CVE-2024-41320 represents a critical command injection flaw within the TOTOLINK A6000R router firmware version V1.0.1-B20201211.2000. This issue manifests through the improper handling of user-supplied input in the ifname parameter of the get_apcli_conn_info function, creating a pathway for malicious actors to execute arbitrary commands on the affected device. The vulnerability stems from insufficient input validation and sanitization mechanisms that fail to properly filter or escape special characters that could be interpreted as command delimiters or operators by the underlying operating system. This type of vulnerability falls under the Common Weakness Enumeration category CWE-77, which specifically addresses command injection flaws in software systems.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with the ability to execute arbitrary code with the privileges of the affected system. An attacker could leverage this weakness to gain full control over the router's functionality, potentially enabling them to modify network configurations, intercept traffic, establish backdoors, or use the device as a pivot point for attacking other systems within the network. The attack surface is particularly concerning given that routers serve as primary network gateways and often maintain elevated privileges within local networks. This vulnerability directly aligns with ATT&CK technique T1059.001, which encompasses command and scripting interpreter execution, and T1566, focusing on spearphishing with a malicious attachment that could be used to deliver exploitation payloads.
Mitigation strategies for CVE-2024-41320 should prioritize immediate firmware updates from TOTOLINK, as the vendor is likely to have released patches addressing this specific vulnerability. Network administrators should also implement network segmentation and access controls to limit the potential impact of successful exploitation. Additional protective measures include disabling unnecessary services, implementing proper input validation at all network boundaries, and monitoring for suspicious command execution patterns. The vulnerability demonstrates the critical importance of secure coding practices and input validation, particularly in network infrastructure devices that process user-provided parameters. Organizations should conduct thorough vulnerability assessments of their network equipment to identify similar weaknesses in other devices and ensure that all firmware components are kept up-to-date with the latest security patches to prevent exploitation of such command injection vulnerabilities.