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CVE-2018-16879: Red Hat Ansible Tower: Information disclosure

CVE-2018-16879 is rated critical with a CVSS v3.1 base score of 9.8 and affects Red Hat Ansible Tower. 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

Ansible Tower before version 3.3.3 does not set a secure channel as it is using the default insecure configuration channel settings for messaging celery workers from RabbitMQ. This could lead in data leak of sensitive information such as passwords as well as denial of service attacks by deleting projects or inventory files.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/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-311: Missing Encryption of Sensitive Data

The product does not encrypt sensitive or critical information before storage or transmission.

Affected products

  • Red Hat Ansible Tower: before 3.3.3

References