CVE intelligence and bounded remediation

CVE-2019-12634 — Cisco Integrated Management Controller Supervisor security vulnerability

High CVSS 8.6

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a missing authentication check in an API call. An attacker who can send a request to an affected system could cause all currently authenticated users to be logged off. Repeated exploitation could cause the inability to maintain a session in the web-based management portal.

Severity
High
CVSS
8.6 (3.0)
Published
2019-08-21
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-264, CWE-306

Affected products

  • cisco / integrated_management_controller_supervisor
  • cisco / ucs_director
  • cisco / ucs_director / 6.6.0.0
  • cisco / ucs_director / 6.6.1.0
  • cisco / ucs_director_express_for_big_data
  • cisco / ucs_director_express_for_big_data / 3.6.0.0

Showing 6 representative product identities from 7 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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