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GHSA-phcg-h58r-gmcq

EVE Doesn't Measure Config Partition From 2 Fronts

Source: GitHub Advisory Database (reviewed) Moderate CVE-2023-43630

Packages

EcosystemPackageAffectedFixed in
Go github.com/lf-edge/eve < 0.0.0-20230126065759-d9383a7ee4e1 0.0.0-20230126065759-d9383a7ee4e1

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact PCR14 is not included in the list of PCRs that seal/unseal the vault key. Additionally, the vault key uses SHA1 PCRs instead of SHA256. Thus an attacker with physical access can take out the disk, use a different computer to modify the files in the /config partition, and re-insert the disk and boot without the change being detected by measured boot and remote attestation. ### Patches Fixed in EVE version 9.4.3-lts ### Workarounds None (apart from preventing physical access to the device) ### Resources https://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications https://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a

References

External links from the advisory. They lead to third-party sites.