23.43.3
CVE-2023-6248 is a critical Remote Code Execution (RCE) vulnerability discovered in the Syrus4 IoT Telematics Gateway. This vulnerability allows an unauthenticated, remote attacker to execute arbitrary commands on affected devices, potentially leading to complete system compromise and data exfiltration. The vulnerability impacts versions apex-23.43.2 through apex-23.43.2 and has been addressed in version 23.43.3.
The impact of CVE-2023-6248 is severe. An attacker exploiting this vulnerability can gain complete control over the Syrus4 IoT Telematics Gateway, enabling them to execute arbitrary code with the privileges of the MQTT server process. This allows for a wide range of malicious activities, including data theft (location, video, diagnostic data), manipulation of vehicle systems via CAN bus messages, and potentially using the compromised gateway as a pivot point to attack other devices on the network. The unsecured MQTT server, accessible without authentication, significantly lowers the barrier to entry for attackers. The ability to send CAN bus messages poses a direct threat to vehicle safety and operation.
CVE-2023-6248 was publicly disclosed on November 21, 2023. While no active exploitation campaigns have been publicly confirmed, the ease of exploitation and the potential impact make it a high-priority vulnerability. The lack of authentication for the MQTT server significantly increases the risk of exploitation. The vulnerability is not currently listed on the CISA KEV catalog, but its critical severity warrants close monitoring.
Vehicles equipped with Syrus4 IoT Telematics Gateways, particularly those connected to public networks or shared hosting environments, are at significant risk. Organizations relying on Syrus4 for fleet management or telematics data collection should prioritize patching to prevent unauthorized access and control of their vehicle systems.
• linux / server:
journalctl -u mqtt -f | grep -i "command execution"• generic web:
curl -I <mqtt_server_ip>/ | grep -i "Content-Type: application/json"• linux / server:
ss -tulnp | grep -i "mqtt"disclosure
漏洞利用状态
EPSS
1.68% (82% 百分位)
CVSS 向量
The primary mitigation for CVE-2023-6248 is to immediately upgrade the Syrus4 IoT Telematics Gateway to version 23.43.3 or later. If upgrading is not immediately feasible, consider implementing temporary workarounds to reduce the attack surface. This includes isolating the Syrus4 gateway from the internet, restricting access to the MQTT server to trusted networks, and implementing strict firewall rules to limit inbound connections. Monitoring MQTT traffic for suspicious activity is also recommended. After upgrading, confirm the fix by attempting to connect to the MQTT server and executing a test command to verify that unauthorized code execution is prevented.
将 Syrus4 设备的固件更新到 apex-23.43.2 之后的版本以修复这些漏洞。请咨询 Digital Communications Technologies 供应商以获取最新的固件版本和更新说明。实施额外的网络安全措施，以降低未经授权访问 MQTT 服务器的风险。
漏洞分析和关键警报直接发送到您的邮箱。
CVE-2023-6248 is a critical Remote Code Execution vulnerability in the Syrus4 IoT Telematics Gateway, allowing attackers to execute code remotely without authentication.
You are affected if you are using Syrus4 IoT Telematics Gateway versions apex-23.43.2–apex-23.43.2. Upgrade to version 23.43.3 or later to mitigate the risk.
Upgrade the Syrus4 IoT Telematics Gateway to version 23.43.3 or later. As a temporary workaround, isolate the gateway and restrict access to the MQTT server.
While no active exploitation campaigns have been publicly confirmed, the vulnerability's ease of exploitation and high impact make it a high-priority risk.
Refer to the Syrus documentation at https://syrus.digitalcomtech.com/ for the latest security advisories and updates.
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