CVE-2020-13799 : Exploit Details and Defense Strategies
Learn about CVE-2020-13799, a security flaw in the RPMB protocol used in storage devices like eMMC, UFS, and NVMe. Find out the impact, affected systems, exploitation risks, and mitigation steps.
Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol used in storage device interfaces like eMMC, UFS, and NVMe. This vulnerability could allow attackers to manipulate the RPMB state without detection by trusted components.
Understanding CVE-2020-13799
What is CVE-2020-13799?
The CVE-2020-13799 vulnerability involves a flaw in the RPMB protocol, a security feature designed to secure trusted firmware in storage devices.
The Impact of CVE-2020-13799
The vulnerability could enable attackers to compromise the RPMB state, potentially leading to unauthorized access and manipulation of data stored on affected devices.
Technical Details of CVE-2020-13799
Vulnerability Description
The RPMB protocol vulnerability affects all versions of eMMC, UFS, and NVMe storage devices, allowing attackers to exploit the RPMB state without detection.
Affected Systems and Versions
- All versions of eMMC, UFS, and NVMe storage devices
Exploitation Mechanism
- Attackers can manipulate the RPMB state without the knowledge of the trusted component using the RPMB feature.
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices with patches provided by Western Digital or respective vendors.
- Monitor for any unauthorized access or changes to RPMB states.
Long-Term Security Practices
- Regularly update firmware and security patches on storage devices.
- Implement network segmentation and access controls to prevent unauthorized access.
Patching and Updates
- Apply security updates and patches promptly to mitigate the vulnerability.