Vulnerability in Trustedfirmware Op-Tee
CVE-2020-13799
Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for storage device interfaces, including all versions of eMMC, UFS, and NVMe. The RPMB protocol is specified by industry standards bodies and is implemented by storage devices from multiple vendors to assist host systems in securing trusted firmware. Several scenarios have been identified in which the RPMB state may be affected by an attacker without the knowledge of the trusted component that uses the RPMB feature.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.kb.cert.org/vuls/id/231329 (US Government Resource, Third Party Advisory, third-party-advisory)
- www.westerndigital.com/support/productsecurity/wdc-20008-replay-attack-vulnerab… (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-13799?
- CVE-2020-13799 is a medium-severity vulnerability in Trustedfirmware Op-Tee, classified under Authentication Bypass by Capture-replay. CVSS score: 6.8/10. Published 2020-11-18.
- How severe is CVE-2020-13799?
- Medium severity. CVSS v3 base score is 6.8 out of 10.