Phoenix Contact vulnerabilities

An unauthenticated denial-of-service vulnerability in the device's PLCnext Engineer communication interface allow an remote attacker to interrupt access via the client application. Successful exploitation prevents communication until the PLCnext service is manually restarted.

A reboot of the charging controller can be triggered via Modbus TCP without authentication. Therefore, when the Modbus functionality is enabled by opening the port that CharxModbusServer is listening, an unauthenticated attacker can perform a Denial-of-Service attack.

A privilege escalation vulnerability in the init-script for user-applications allows a low-privileged local user to execute arbitrary commands as root, resulting in full system compromise.

A privilege escalation vulnerability in the system configuration allows a low-privileged local user to execute arbitrary commands as root, resulting in full system compromise.

This vulnerability allows an unauthenticated remote attacker with control over the OCPP backend via firewall-bypass to perform an OS command injection, resulting in the execution of arbitrary commands as the limited user charx-oa. Charging could be interrupted.

A low-privileged remote attacker with "operator" access can upload arbitrary files via the REST endpoint intended for firmware updates, resulting in persistent storage of attacker-controlled files and potentially exhausting resources, which might lead to Denial-of-Service.

A privilege escalation vulnerability in udhcpc allows a local user "charx-web" to execute arbitrary commands as root, resulting in full system compromise.

A privilege escalation vulnerability in a script used for network configuration allows a low-privileged local user to execute arbitrary commands as root, resulting in full system compromise.

An unauthenticated remote attacker can enforce the system to fall back to a firmware partition with an insecure configuration including default credentials. This could allow the attacker to gain SSH access to the system as an unprivileged user "user-app". Charging could be interrupted.

A local privilege escalation vulnerability in the init-script for user-applications allows a low-privileged local user to execute arbitrary commands as root, resulting in full system compromise.

It is possible for an unauthenticated adjacent attacker to download log files of the controller, which may disclose some restricted information.

A local user with low privileges may be able to influence the behavior of a privileged system service by manipulating configuration or application-related files located in user-writable areas of the filesystem. The affected service processes data from locations that are not sufficiently protected against modification by low-privileged users. As the service runs with elevated privileges, successful exploitation may result in a local privilege escalation.