GitHub Advisoryadvisory · Go
GHSA-3mq9-xhgq-r7gj EVE: SSH as Root Unlockable Without Triggering Measured Boot
MEDIUM
Official page ↗
- Aliases
- CVE-2023-43631
- Ecosystem
- Go
- Packages
- github.com/lf-edge/eve
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
- Weaknesses
- CWE-522, CWE-922
- Reviewed
- 2026-02-04
Affected packages
• Go github.com/lf-edge/eve: < 0.0.0-20220708121648-5fef4d92e758 → fixed in 0.0.0-20220708121648-5fef4d92e758
Description
Impact
On boot, the Pillar container checks for /config/authorized_keys. If present with a valid public key, it enables SSH on port 22 with root login. The /config partition is not protected by measured boot, is mutable and unencrypted.
This enables an attacker with physical access to the device to take out the disk, modify the /config partition using a separate server, then insert it, without the inserted key being flagged as an integrity voilation my measured boot and remote attestation.
Patches
Patched in 9.4.3-lts
Workarounds
None (apart from preventing physical access to the device)
Related
Alias · CVE (1)
- CVE-2023-43631 On boot, the Pillar eve container checks for the existence and content of “/config/authorized_keys”. vulnerability
References
- https://github.com/lf-edge/eve/security/advisories/GHSA-3mq9-xhgq-r7gj web
- https://nvd.nist.gov/vuln/detail/CVE-2023-43631 advisory
- https://github.com/lf-edge/eve/commit/5fef4d92e75838cc78010edaed5247dfbdae1889 web
- https://github.com/lf-edge/eve/commit/aa3501d6c57206ced222c33aea15a9169d629141 web
- https://asrg.io/security-advisories/cve-2023-43631 web
- https://asrg.io/security-advisories/ssh-as-root-unlockable-without-triggering-measured-boot web
- https://github.com/lf-edge/eve package