EVE Doesn't Protect Rootfs
### Impact Measured boot validates BIOS, grub, kernel cmdline, and initrd but not the entire rootfs. Thus, an attacker can create an EVE-OS rootfs squashfs image with some files modified and take out the disk and replace the existing rootfs image without that being detected by measure boot and remote attestation. ### Patches Fixed in 8.6.0 and 8.12.1-lts ### Workarounds None
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-43636US | high8.8OT elevated | — | ||
In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing
the encrypted data located in the vault.
As per the “measured boot” design, the PCR values… | ||||
02
references
External citations — patches, advisories, analysis.
- https://asrg.io/security-advisories/19274WEB
- https://asrg.io/security-advisories/cve-2023-43636WEB
- https://github.com/lf-edge/evePACKAGE
- https://github.com/lf-edge/eve/commit/5fef4d92e75838cc78010edaed5247dfbdae1889WEB
- https://github.com/lf-edge/eve/commit/aa3501d6c57206ced222c33aea15a9169d629141WEB
- https://github.com/lf-edge/eve/security/advisories/GHSA-5h7v-g49c-h887WEB
- https://nvd.nist.gov/vuln/detail/CVE-2023-43636ADVISORY
scry
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