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.

01What is this vulnerability?

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

02Affected products

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

03Active exploitation status

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

04Recommended remediation

• 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.

05Technical details

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

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

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

08Timeline

• Published: 2023-09-21T13:05:14.046Z
• Last modified: 2024-09-24T16:54:58.431Z

09References

• asrg.io — https://asrg.io/security-advisories/cve-2023-43634/