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CVE-2017-14021: An attacker may gain access to hard-coded certificates and private keys allowing the attacker to perform…

CVE-2017-14021 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 9 affected products, including Korenix Jetnet5018g Firmware. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

A Use of Hard-coded Cryptographic Key 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. An attacker may gain access to hard-coded certificates and private keys allowing the attacker to perform man-in-the-middle attacks.

Severity breakdown

CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-321: Use of Hard-coded Cryptographic Key

The product uses a hard-coded, unchangeable cryptographic key.

CWE-798: Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

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
  • Korenix Jetnet5828g Firmware: 1.1d
  • Korenix Jetnet6710g Firmware: 1.1
  • Korenix Jetnet6710g Hvdc Firmware: 11e

References