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CVE-2017-6131: In some circumstances, an F5 BIG-IP version 12.0.0 to 12.1.2 and 13.0.0 Azure cloud instance may contain a…

CVE-2017-6131 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 9 affected products, including F5 Big IP Local Traffic Manager. 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

In some circumstances, an F5 BIG-IP version 12.0.0 to 12.1.2 and 13.0.0 Azure cloud instance may contain a default administrative password which could be used to remotely log into the BIG-IP system. The impacted administrative account is the Azure instance administrative user that was created at deployment. The root and admin accounts are not vulnerable. An attacker may be able to remotely access the BIG-IP host via SSH.

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

  • F5 Big IP Local Traffic Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Application Acceleration Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Advanced Firewall Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Access Policy Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Application Security Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Domain Name System: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Link Controller: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Policy Enforcement Manager: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0
  • F5 Big IP Websafe: 12.0.0; 12.1.0; 12.1.1; 12.1.2; 13.0.0

References