GHSA-4c4v-42hc-72p6

EVE's Debug Functions Unlockable Without Triggering Measured Boot

Source: GitHub Advisory Database (reviewed) Moderate CVE-2023-43633

Packages

Ecosystem	Package	Affected	Fixed in
Go	github.com/lf-edge/eve	< 0.0.0-20220708121648-5fef4d92e758	0.0.0-20220708121648-5fef4d92e758

Details

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

### Impact On boot, Pillar checks for /config/GlobalConfig/global.json and overrides system configuration if present. This allows enabling debug functions like SSH (debug.enable.ssh), USB keyboard (debug.enable.usb), and VNC access (app.allow.vnc) without triggering the measured boot. Thus, a user with physical access can take out the disk and modify the content of this file in the /config partition and then re-insert the disk. ### Patches Fixed in 10.1.0 and 9.4.3-lts ### Workarounds None

References

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

https://github.com/lf-edge/eve/security/advisories/GHSA-4c4v-42hc-72p6 web
https://nvd.nist.gov/vuln/detail/CVE-2023-43633 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-2023-43633 web
https://asrg.io/security-advisories/debug-functions-unlockable-without-triggering-measured-boot web
https://github.com/lf-edge/eve package