Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS

Multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are prone to a DoS attack through special crafted JSON requests.

Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS: A specially crafted LLDP packet may lead to a high system load in the PROFINET stack.

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.

Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An attacker can use this vulnerability i.e. to open a reverse shell with root privileges.

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.

Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.

Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An authenticated low privileged user could embed malicious Javascript code to gain admin rights when the admin user visits the vulnerable website (local privilege escalation).

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an authenticated low privileged user could embed malicious Javascript code to gain admin rights when the admin user visits the vulnerable website (local privilege escalation).

An issue was discovered on Phoenix Contact AXC F 2152 (No.2404267) before 2019.0 LTS and AXC F 2152 STARTERKIT (No.1046568) before 2019.0 LTS devices. Unlimited physical access to the PLC may lead to a manipulation of SD cards data. SD card manipulation may lead to an authentication bypass opportunity.

An issue was discovered on Phoenix Contact AXC F 2152 (No.2404267) before 2019.0 LTS and AXC F 2152 STARTERKIT (No.1046568) before 2019.0 LTS devices. Protocol Fuzzing on PC WORX Engineer by a man in the middle attacker stops the PLC service. The device must be rebooted, or the PLC service must be restarted manually via a Linux shell.