high8.8
CVE-2023-43634
EVE Doesn't Protect Config Partition with Measured Boot
Impact
### Impact Config partition measurement was moved from PCR 13 to PCR 14 in a commit, but PCR 14 was not added to the list of PCRs that seal/unseal the vault key. As a result, an attacker can remove the disk, use another server to modify the files in the config partition, and then re-insert the disk. ### 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
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/lf-edge/eve | < 0.0.0-20230519072751-977f42b07fa9 | 0.0.0-20230519072751-977f42b07fa9 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Lfedge | Eve | before 8.6.0 from 9.0.0 before 9.5.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://asrg.io/security-advisories/cve-2023-43634/
- https://github.com/advisories/GHSA-wc42-fcjp-v8vq
- https://github.com/lf-edge/eve/security/advisories/GHSA-wc42-fcjp-v8vq
- https://nvd.nist.gov/vuln/detail/CVE-2023-43634
- https://asrg.io/security-advisories/config-partition-not-protected-by-measured-boot
- https://asrg.io/security-advisories/cve-2023-43634