#VU6397 Privilege escalation in Intel Manageability Firmware - CVE-2017-5689

Vulnerability identifier: #VU6397

Vulnerability risk: High

CVSSv4.0: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2017-5689

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Intel Manageability Firmware
Hardware solutions / Firmware

Vendor: Intel

Description
The vulnerability allows a remote unauthenticated or local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper authentication. A remote attacker can connect to the 16992/tcp port through UDP protocol and gain full control of Intel Active Management Technology (AMT) and Intel Standard Manageability (ISM). A local attacker can escalate privileges and compromise Intel manageability SKUs: Intel Active Management Technology (AMT), Intel Standard Manageability (ISM), and Intel Small Business Technology (SBT).

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Intel Manageability Firmware: 6.0 - 11.6

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External links
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00075&languageid=en-fr
https://mjg59.dreamwidth.org/48429.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.