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CVE-2018-12171: Intel Bmc Firmware: Privilege escalation

CVE-2018-12171 is rated critical with a CVSS v3.0 base score of 9.8 and affects Intel Bmc Firmware. 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

Privilege escalation in Intel Baseboard Management Controller (BMC) firmware before version 1.43.91f76955 may allow an unprivileged user to potentially execute arbitrary code or perform denial of service over the network.

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.

Affected products

  • Intel Bmc Firmware: before 1.43.91f76955

References