A significant security flaw has been detected in Arcadyan routers due to the participation of the Wi-Fi Test Suite, a tool devised by the Wi-Fi Alliance for certification testing, in production devices. This vulnerability, identified as CVE-2024-41992, exists specifically in the FMIMG51AX000J model and allows attackers to perform command injection attacks, granting them complete administrative control over affected routers. The presence of the Wi-Fi Test Suite in these commercial products has created a severe security breach, potentially exposing numerous networks to malicious activities.
Security researchers discovered that the Wi-Fi Test Suite, which ought not to be present in commercial products, accepts TLV packets on TCP ports 8000 and 8080. According to their findings, specially crafted packets could exploit this command injection flaw, leading to remote code execution. This gives malicious actors the ability to control system configurations, disrupt network services, and compromise connected devices and user data. The vulnerability, primarily stemming from the software’s susceptibility to command injections accepting larger inputs, such as the “wfaTGSendPing” function, can be particularly dangerous.
Details of the Vulnerability
Functions that accept larger inputs, like “wfaTGSendPing,” are vulnerable to command injections that can be exploited by attackers. Upon successful exploitation, attackers can execute commands with root privileges, leading to serious security implications including the potential for network disruptions and data breaches. The severity of this flaw underscores the critical nature of stringent security measures in production environments and highlights the potential risks of deploying non-production tools in commercially available devices. These security measures should prevent unauthorized access and control over systems, addressing both immediate and long-term risks.
The initial discovery of this critical flaw was made by Noam Rathaus from SSD Disclosure, a team known for its expertise in identifying and detailing such vulnerabilities. Further documentation provided by Timur Snoke at CERT/CC elaborated on the extent of the flaw and offered initial insights into potential mitigation steps. To address this serious issue, CERT/CC recommends that vendors update their Wi-Fi Test Suite to version 9.0 or later or completely remove the test suite from their production devices to eliminate this threat. Immediate action is imperative to prevent widespread exploitation.
Mitigation and Response
A critical security flaw has been discovered in Arcadyan routers due to the integration of the Wi-Fi Test Suite, a tool created by the Wi-Fi Alliance for certification, in production devices. This vulnerability is identified as CVE-2024-41992 and is specific to the FMIMG51AX000J model. It allows attackers to execute command injection attacks, giving them full administrative control over the affected routers. The unexpected inclusion of the Wi-Fi Test Suite in commercial products has resulted in a severe security breach, potentially exposing many networks to malicious activities.
Security researchers found that the Wi-Fi Test Suite, which should not be in commercial products, accepts TLV packets on TCP ports 8000 and 8080. Their research indicated that specially crafted packets could exploit this command injection flaw, enabling remote code execution. This flaw allows malicious actors to control system configurations, disrupt network services, and compromise connected devices and user data. The vulnerability mainly arises from the software’s ability to accept larger inputs, such as the “wfaTGSendPing” function, making it particularly dangerous.