CVE-2020-12519 : Exploit Details and Defense Strategies
Learn about CVE-2020-12519, a high-severity vulnerability in Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS, allowing attackers to gain root privileges. Find mitigation steps and solutions here.
Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS have a vulnerability that allows attackers to open a reverse shell with root privileges.
Understanding CVE-2020-12519
This CVE involves a security issue in Phoenix Contact PLCnext Control Devices that could lead to unauthorized access with elevated privileges.
What is CVE-2020-12519?
This CVE refers to a vulnerability in Phoenix Contact PLCnext Control Devices versions prior to 2021.0 LTS, enabling attackers to execute commands with root privileges, potentially compromising the system.
The Impact of CVE-2020-12519
The vulnerability poses a high severity risk with a CVSS base score of 8.8, allowing attackers to gain full control over affected devices, leading to potential data breaches and system compromise.
Technical Details of CVE-2020-12519
Phoenix Contact PLCnext Control Devices are susceptible to exploitation due to improper privilege management.
Vulnerability Description
The vulnerability allows attackers to open a reverse shell with root privileges on devices running versions before 2021.0 LTS.
Affected Systems and Versions
- Products affected: AXC F 1152, AXC F 2152, AXC F 3152, RFC 4072S, AXC F 2152 Starterkit, PLCnext Technology Starterkit
- Vendor: Phoenix Contact
- Vulnerable versions: Versions before 2021.0 LTS
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: Low
- User Interaction: None
- Scope: Changed
- Confidentiality, Integrity, and Availability Impact: High
Mitigation and Prevention
Phoenix Contact provides recommendations and solutions to address the CVE-2020-12519 vulnerability.
Immediate Steps to Take
- Upgrade affected devices to Firmware 2021.0 LTS or higher.
- Operate network-capable devices in closed networks or behind a firewall.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Implement network segmentation and access controls.
Patching and Updates
- Apply the latest firmware updates provided by Phoenix Contact to mitigate the vulnerability.