GHSA-3MQ9-XHGQ-R7GJ
Vulnerability from github – Published: 2026-02-04 20:46 – Updated: 2026-02-04 20:46
VLAI?
Summary
EVE: SSH as Root Unlockable Without Triggering Measured Boot
Details
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)
Severity ?
5.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/lf-edge/eve"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20220708121648-5fef4d92e758"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-43631"
],
"database_specific": {
"cwe_ids": [
"CWE-522",
"CWE-922"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-04T20:46:16Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "### Impact\n\nOn 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.\n\nThis 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.\n\n### Patches\n\nPatched in 9.4.3-lts\n\n### Workarounds\n\nNone (apart from preventing physical access to the device)",
"id": "GHSA-3mq9-xhgq-r7gj",
"modified": "2026-02-04T20:46:16Z",
"published": "2026-02-04T20:46:16Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/lf-edge/eve/security/advisories/GHSA-3mq9-xhgq-r7gj"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43631"
},
{
"type": "WEB",
"url": "https://github.com/lf-edge/eve/commit/5fef4d92e75838cc78010edaed5247dfbdae1889"
},
{
"type": "WEB",
"url": "https://github.com/lf-edge/eve/commit/aa3501d6c57206ced222c33aea15a9169d629141"
},
{
"type": "WEB",
"url": "https://asrg.io/security-advisories/cve-2023-43631"
},
{
"type": "WEB",
"url": "https://asrg.io/security-advisories/ssh-as-root-unlockable-without-triggering-measured-boot"
},
{
"type": "PACKAGE",
"url": "https://github.com/lf-edge/eve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "EVE: SSH as Root Unlockable Without Triggering Measured Boot"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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