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CVE-2016-5700: Virtual servers in F5 BIG-IP systems 11.5.0, 11.5.1 before HF11, 11.5.2, 11.5.3, 11.5.4 before HF2, 11.6.0…

CVE-2016-5700 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 8 affected products, including F5 Big IP Policy Enforcement 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

Virtual servers in F5 BIG-IP systems 11.5.0, 11.5.1 before HF11, 11.5.2, 11.5.3, 11.5.4 before HF2, 11.6.0 before HF8, 11.6.1 before HF1, 12.0.0 before HF4, and 12.1.0 before HF2, when configured with the HTTP Explicit Proxy functionality or SOCKS profile, allow remote attackers to modify the system configuration, read system files, and possibly execute arbitrary code via unspecified vectors.

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-284: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected products

  • F5 Big IP Policy Enforcement Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Local Traffic Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Websafe: 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Link Controller: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Application Acceleration Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Access Policy Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Advanced Firewall Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0
  • F5 Big IP Application Security Manager: 11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0

References