Vulnerability in Trustedcomputinggroup Trusted Platform Module
CVE-2018-6622
An issue was discovered that affects all producers of BIOS firmware who make a certain realistic interpretation of an obscure portion of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2.0 specification. An abnormal case is not handled properly by this firmware while S3 sleep and can clear TPM 2.0. It allows local users to overwrite static PCRs of TPM and neutralize the security features of it, such as seal/unseal and remote attestation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Trustedcomputinggroup Trusted Platform Module — versions 2.0
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/105203 (VDB Entry, Third Party Advisory, vdb-entry)
- www.usenix.org/conference/usenixsecurity18/presentation/han (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-6622?
- CVE-2018-6622 is a high-severity vulnerability in Trustedcomputinggroup Trusted Platform Module. CVSS score: 7.1/10. Published 2018-08-17.
- How severe is CVE-2018-6622?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2018-6622 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.