CVE-2020-12518 : Security Advisory and Response
Learn about CVE-2020-12518 affecting Phoenix Contact PLCnext Control Devices before 2021.0 LTS. Find out the impact, affected systems, and mitigation steps.
Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS have a vulnerability that allows attackers to gain sensitive information.
Understanding CVE-2020-12518
This CVE involves Phoenix Contact PLCnext Control Devices and the potential risks associated with pre-2021.0 LTS versions.
What is CVE-2020-12518?
This CVE refers to a security flaw in Phoenix Contact PLCnext Control Devices before the 2021.0 LTS version. Attackers can exploit this vulnerability to access sensitive information, potentially leading to further attacks.
The Impact of CVE-2020-12518
The vulnerability allows attackers to read insufficiently protected sensitive information, enabling them to plan and execute additional attacks on affected systems.
Technical Details of CVE-2020-12518
Phoenix Contact PLCnext Control Devices are affected by this vulnerability, with specific details outlined below.
Vulnerability Description
The flaw allows attackers to leverage unprotected sensitive data to strategize and carry out subsequent attacks on the system.
Affected Systems and Versions
- AXC F 1152 (1151412)
- AXC F 2152 (2404267)
- AXC F 3152 (1069208)
- RFC 4072S (1051328)
- AXC F 2152 Starterkit (1046568)
- PLCnext Technology Starterkit (1188165)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Confidentiality Impact: High
- Privileges Required: Low
- User Interaction: None
- CVSS Base Score: 5.5 (Medium)
Mitigation and Prevention
To address CVE-2020-12518, users should take immediate and long-term security measures.
Immediate Steps to Take
- Upgrade to Firmware 2021.0 LTS or higher as recommended by Phoenix Contact.
- Operate network-capable devices in closed networks or behind a suitable firewall.
Long-Term Security Practices
- Regularly update firmware and software to patch vulnerabilities.
- Implement network segmentation and access controls to limit exposure.
Patching and Updates
Ensure all devices are running the latest firmware version to mitigate the risks associated with this vulnerability.