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CVE-2022-1053 Detail

Current Description

Keylime does not enforce that the agent registrar data is the same when the tenant uses it for validation of the EK and identity quote and the verifier for validating the integrity quote. This allows an attacker to use one AK, EK pair from a real TPM to pass EK validation and give the verifier an AK of a software TPM. A successful attack breaks the entire chain of trust because a not validated AK is used by the verifier. This issue is worse if the validation happens first and then the agent gets added to the verifier because the timing is easier and the verifier does not validate the regcount entry being equal to 1,


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.1 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2065024, Broken Link 
https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d Patch  Third Party Advisory 
https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5, Broken Link 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A7WAKVXM7L5D2DUACV6EHA6EJNAX2GVL/ Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RF6QHU4UGSBATC3HOOE7OP66CYVTR7CV/ Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WEW2PAXO5YGLDLPG45YV2OPLJXJSCECQ/ Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation cwe source acceptance level NIST   Contributor acceptance level Red Hat, Inc.  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-1053
NVD Published Date:
05/06/2022
NVD Last Modified:
05/16/2022
Source:
Red Hat, Inc.