CVE-2024-23057 in A3300R
Summary
by MITRE • 01/11/2024
TOTOLINK A3300R V17.0.0cu.557_B20221024 was discovered to contain a command injection vulnerability via the tz parameter in the setNtpCfg function.
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Analysis
by VulDB Data Team • 08/30/2024
The vulnerability identified as CVE-2024-23057 affects the TOTOLINK A3300R router model running firmware version V17.0.0cu.557_B20221024 and represents a critical command injection flaw that resides within the device's network time protocol configuration functionality. This vulnerability specifically manifests through the tz parameter within the setNtpCfg function, creating a pathway for malicious actors to execute arbitrary commands on the affected device with elevated privileges.
The technical flaw stems from inadequate input validation and sanitization within the router's web interface implementation. When the tz parameter is processed through the setNtpCfg function, the system fails to properly sanitize user-supplied input before incorporating it into system commands. This lack of proper input filtering creates an environment where attackers can inject malicious commands that get executed by the underlying operating system. The vulnerability falls under the Common Weakness Enumeration category CWE-77, which specifically addresses command injection flaws where untrusted data is passed to system commands without proper sanitization.
The operational impact of this vulnerability is severe and multifaceted. An attacker who successfully exploits this command injection flaw can gain full administrative control over the affected router, potentially leading to complete network compromise. The compromised device could serve as a pivot point for lateral movement within the network, allowing attackers to access other connected devices and systems. Additionally, the attacker could modify network configurations, redirect traffic, install malware, or establish persistent backdoors. The vulnerability is particularly dangerous because it likely requires no authentication for exploitation, making it accessible to remote attackers who can leverage it to compromise the device from outside the network perimeter.
Security practitioners should immediately implement network segmentation and access controls to limit potential attack vectors. The most effective mitigation strategy involves updating the firmware to the latest version provided by TOTOLINK, which should contain patches addressing this specific vulnerability. Network monitoring should be enhanced to detect unusual command execution patterns or parameter manipulation attempts. Organizations should also consider implementing web application firewalls and input validation mechanisms to prevent similar vulnerabilities in other network devices. The ATT&CK framework categorizes this type of vulnerability under T1059.001 - Command and Scripting Interpreter: PowerShell, where attackers can leverage command injection to execute malicious payloads. Additionally, this vulnerability aligns with T1566.001 - Phishing: Spearphishing Attachment, as attackers might use phishing campaigns to deliver payloads that exploit this command injection flaw. Device administrators should also review and restrict administrative access to network devices, implementing multi-factor authentication and least privilege access controls to minimize the potential impact of successful exploitation attempts.