CVE-2020-11496 Explained : Impact and Mitigation
Learn about CVE-2020-11496 affecting Sprecher SPRECON-E firmware. Understand the impact, affected systems, exploitation mechanism, and mitigation steps to secure your devices.
Sprecher SPRECON-E firmware prior to 8.64b may allow local attackers to insert arbitrary code by exploiting a lack of input validation on the device side. This could lead to the execution of malicious commands by manipulating local configuration files.
Understanding CVE-2020-11496
This CVE involves a vulnerability in the Sprecher SPRECON-E firmware that could be exploited by attackers with access to engineering data.
What is CVE-2020-11496?
The vulnerability in the SPRECON-E firmware allows local attackers to insert arbitrary code due to the absence of input validation on the device side. This can be achieved by manipulating local configuration files.
The Impact of CVE-2020-11496
The lack of input validation in the firmware can enable attackers to execute malicious commands on the affected device, potentially leading to unauthorized access or control.
Technical Details of CVE-2020-11496
This section provides more technical insights into the vulnerability.
Vulnerability Description
The Sprecher SPRECON-E firmware prior to version 8.64b lacks input validation on the device side, allowing attackers to insert arbitrary code through local configuration files.
Affected Systems and Versions
- Product: Sprecher SPRECON-E
- Vendor: Sprecher Automation
- Versions affected: Firmware versions prior to 8.64b
Exploitation Mechanism
Attackers with access to engineering data can insert malicious commands into local configuration files, which are executed after being compiled to valid parameter files and transferred to the device.
Mitigation and Prevention
Protecting systems from CVE-2020-11496 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware to version 8.64b or later to mitigate the vulnerability.
- Restrict access to engineering data and configuration files to authorized personnel only.
Long-Term Security Practices
- Regularly monitor and audit system configurations and files for any unauthorized changes.
- Educate users on the importance of secure configuration practices and the risks associated with unauthorized code execution.
Patching and Updates
- Stay informed about security updates and patches released by Sprecher Automation.
- Apply patches promptly to ensure the security of the SPRECON-E firmware.