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CVE-2016-8584: Trendmicro Threat Discovery Appliance: Authentication bypass

CVE-2016-8584 is rated critical with a CVSS v3.0 base score of 9.8 and affects Trendmicro Threat Discovery Appliance. 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

Trend Micro Threat Discovery Appliance 2.6.1062r1 and earlier uses predictable session values, which allows remote attackers to bypass authentication by guessing the value.

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

  • Trendmicro Threat Discovery Appliance: up to and including 2.6.1062

References