CVE intelligence and bounded remediation

CVE-2022-30627 — Chcnav P5E Gnss Firmware security vulnerability

High CVSS 7.5

This vulnerability affects all of the company's products that also include the FW versions: update_i90_cv2.021_b20210104, update_i50_v1.0.55_b20200509, update_x6_v2.1.2_b202001127, update_b5_v2.0.9_b20200706. This vulnerability makes it possible to extract from the FW the existing user passwords on their operating systems and passwords.

Severity
High
CVSS
7.5 (3.1)
Published
2022-07-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-798

Affected products

  • chcnav / p5e_gnss_firmware / 4.1
  • chcnav / p5e_gnss_firmware / 4.2
  • chcnav / p5e_gnss_firmware / update_b5_v2.0.9_b20200706
  • chcnav / p5e_gnss_firmware / update_i50_v1.0.55_b20200509
  • chcnav / p5e_gnss_firmware / update_i90_cv2.021_b20210104
  • chcnav / p5e_gnss_firmware / update_x6_v2.1.2_b202001127

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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