Intel Management Engine Insecure Read / Write Operations RCE (INTEL-SA-00075)

Critical Nessus Plugin ID 97997

Synopsis

The management engine on the remote host is affected by a remote code execution vulnerability.

Description

The Intel Management Engine on the remote host has Active Management Technology (AMT) enabled and is running Intel manageability firmware version 6.x prior to 6.2.61.3535, 7.x prior to 7.1.91.3272, 8.x prior to 8.1.71.3608, 9.0.x or 9.1.x prior to 9.1.41.3024, 9.5.x prior to 9.5.61.3012, 10.0.x prior to 10.0.55.3000, 11.0.18.x prior to 11.0.18.3003, 11.0.22.x prior to 11.0.22.3001, 11.0.x prior to 11.0.25.3001, 11.6.12.x prior to 11.6.12.3202, or else 11.5.x or 11.6.x prior to 11.6.27.3264. It is, therefore, affected by a remote code execution vulnerability due to insecure read and write operations. An unauthenticated, remote attacker can exploit this to execute arbitrary code.

Note that the vulnerability is only exploitable remotely if either Active Management Technology (AMT), Intel Standard Manageability (ISM), or Small Business Technology (SBT) is enabled. However, a local attacker can still exploit the vulnerability even if these components are disabled by simply re-enabling the components.

Also, note that due to the low-level implementation of Intel ME, Nessus may not be able to identify its version on the remote host at this time.

Solution

Contact your system OEM for updated firmware per the vendor advisory.

Alternatively, apply these mitigations per the INTEL-SA-00075 mitigation guide :

- Unprovision Intel manageability SKU clients.
- Disable or remove the Local Manageability Service (LMS).
- Configure local manageability configuration restrictions.

See Also

http://www.nessus.org/u?9e6ca5f4

https://downloadcenter.intel.com/download/26754

https://mjg59.dreamwidth.org/48429.html

https://embedi.com/news/mythbusters-cve-2017-5689/

Plugin Details

Severity: Critical

ID: 97997

File Name: wmi_INTEL-SA-00075.nbin

Version: 1.71

Type: local

Agent: windows

Family: Windows

Published: 2017/05/03

Updated: 2019/08/20

Dependencies: 44401, 102992

Risk Information

Risk Factor: Critical

CVSS Score Source: CVE-2017-5689

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/h:intel:active_management_technology, cpe:/o:intel:active_management_technology_firmware

Required KB Items: Intel/AMT/Enabled, SMB/Services/Enumerated

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/04/25

Vulnerability Publication Date: 2017/05/01

Reference Information

CVE: CVE-2017-5689

BID: 98269

CERT: 491375