Vulnerability Details : 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.
Products affected by CVE-2018-6622
- cpe:2.3:a:trustedcomputinggroup:trusted_platform_module:2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-6622
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-6622
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:N/I:P/A:P |
3.9
|
4.9
|
NIST | |
|
7.1
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.8
|
5.2
|
NIST |
References for CVE-2018-6622
-
http://www.securityfocus.com/bid/105203
Trusted Platform Module (TPM) CVE-2018-6622 Local Security VulnerabilityThird Party Advisory;VDB Entry
-
https://www.usenix.org/conference/usenixsecurity18/presentation/han
A Bad Dream: Subverting Trusted Platform Module While You Are Sleeping | USENIXThird Party Advisory
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