CVE intelligence and bounded remediation

CVE-2017-14027 — Korenix Jetnet5018G Firmware security vulnerability

Critical CVSS 9.8

A Use of Hard-coded Credentials issue was discovered in Korenix JetNet JetNet5018G version 1.4, JetNet5310G version 1.4a, JetNet5428G-2G-2FX version 1.4, JetNet5628G-R version 1.4, JetNet5628G version 1.4, JetNet5728G-24P version 1.4, JetNet5828G version 1.1d, JetNet6710G-HVDC version 1.1e, and JetNet6710G version 1.1. The software uses undocumented hard-coded credentials that may allow an attacker to gain remote access.

Severity
Critical
CVSS
9.8 (3.0)
Published
2017-11-01
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-798

Affected products

  • korenix / jetnet5018g_firmware / 1.4
  • korenix / jetnet5310g_firmware / 1.4a
  • korenix / jetnet5428g-2g-2fx_firmware / 1.4
  • korenix / jetnet5628g_firmware / 1.4
  • korenix / jetnet5628g-r_firmware / 1.4
  • korenix / jetnet5728g-24p_firmware / 1.4

Showing 6 representative product identities from 9 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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