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CVE-2017-11743: Medhost Connex: Hard-coded credentials or backdoor

CVE-2017-11743 is rated critical with a CVSS v3.0 base score of 9.8 and affects Medhost Connex. 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

MEDHOST Connex contains a hard-coded Mirth Connect admin credential that is used for customer Mirth Connect management access. An attacker with knowledge of the hard-coded credential and the ability to communicate directly with the Mirth Connect management console may be able to intercept sensitive patient information. The admin account password is hard-coded as $K8t1ng throughout the application, and is the same across all installations. Customers do not have the option to change the Mirth Connect admin account password. The Mirth Connect admin account is created during the Connex install. The plaintext account password is hard-coded multiple times in the Connex install and update scripts.

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-798: Use of Hard-coded Credentials

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

Affected products

  • Medhost Connex: all versions listed by NVD

References