CVE intelligence and bounded remediation

CVE-2019-1935 — Cisco Integrated Management Controller Supervisor security vulnerability

Critical CVSS 9.8

A vulnerability in Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to log in to the CLI of an affected system by using the SCP User account (scpuser), which has default user credentials. The vulnerability is due to the presence of a documented default account with an undocumented default password and incorrect permission settings for that account. Changing the default password for this account is not enforced during the installation of the product. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the scpuser account. This includes full read and write access to the system's database.

Severity
Critical
CVSS
9.8 (3.1)
Published
2019-08-21
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-798

Affected products

  • cisco / integrated_management_controller_supervisor
  • cisco / integrated_management_controller_supervisor / 2.1.0.0
  • cisco / ucs_director / 6.0.0.0
  • cisco / ucs_director / 6.5.0.0
  • cisco / ucs_director / 6.6.0.0
  • cisco / ucs_director / 6.6.1.0

Showing 6 representative product identities from 14 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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