{"vulnerability": "CVE-2023-43633", "sightings": [{"uuid": "261e4802-134c-435d-a014-96ad5c47ed83", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-43633", "type": "seen", "source": "https://t.me/cibsecurity/70899", "content": "\u203c CVE-2023-43633 \u203c\n\nOn boot, the Pillar eve container checks for the existence and content of\u00e2\u20ac\u0153/config/GlobalConfig/global.json\u00e2\u20ac\ufffd.If the file exists, it overrides the existing configuration on the device on boot.This allows an attacker to change the system\u00e2\u20ac\u2122s configuration, which also includes somedebug functions.This could be used to unlock the ssh with custom \u00e2\u20ac\u0153authorized_keys\u00e2\u20ac\ufffd via the\u00e2\u20ac\u0153debug.enable.ssh\u00e2\u20ac\ufffd key, similar to the \u00e2\u20ac\u0153authorized_keys\u00e2\u20ac\ufffd finding that was noted before.Other usages include unlocking the usb to enable the keyboard via the \u00e2\u20ac\u0153debug.enable.usb\u00e2\u20ac\ufffdkey, allowing VNC access via the \u00e2\u20ac\u0153app.allow.vnc\u00e2\u20ac\ufffd key, and more.An attacker could easily enable these debug functionalities without triggering the \u00e2\u20ac\u0153measuredboot\u00e2\u20ac\ufffd mechanism implemented by EVE OS, and without marking the device as \u00e2\u20ac\u0153UUD\u00e2\u20ac\ufffd(\u00e2\u20ac\u0153Unknown Update Detected\u00e2\u20ac\ufffd).This is because the \u00e2\u20ac\u0153/config\u00e2\u20ac\ufffd partition is not protected by \u00e2\u20ac\u0153measured boot\u00e2\u20ac\ufffd, it is mutable and itis not encrypted in any way.An attacker can gain full control over the device without changing the PCR values, thereby nottriggering the \u00e2\u20ac\u0153measured boot\u00e2\u20ac\ufffd mechanism, and having full access to the vault.Note:This issue was partially fixed in these commits (after disclosure to Zededa), where the configpartition measurement was added to PCR13:\u00e2\u20ac\u00a2 aa3501d6c57206ced222c33aea15a9169d629141\u00e2\u20ac\u00a2 5fef4d92e75838cc78010edaed5247dfbdae1889.This issue was made viable in version 9.0.0 when the calculation was moved to PCR14 but it was not included in the measured boot.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2023-09-21T18:31:11.000000Z"}, {"uuid": "8d70f401-9a32-47a3-8dc8-1885303f9166", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-43633", "type": "seen", "source": "https://gist.github.com/alon710/607362935c66cd5c9117878534849de3", "content": "", "creation_timestamp": "2026-02-04T22:40:05.000000Z"}]}