SARA / Free Tools / CVE / CVE-2023-43634

CVE-2023-43634 — When sealing/unsealing the “vault” key, a list of PCRs is used, which defines wh

When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used.

CVSS

8.8 HIGH

EPSS

3.00% (top 91.70%)

CWE

CWE-522, CWE-922

Published

2023-09-21T13:05:14.046Z

Last modified

2024-09-24T16:54:58.431Z

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

01What is this vulnerability?

When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used.

Vendor	Product	Versions
LF-Edge, Zededa	EVE OS	0, 9.0.0

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

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