#VU69314 Improper Authentication in Converged Security and Management Engine (CSME) and Intel Active Management Technology - CVE-2021-33159

Vulnerability identifier: #VU69314

Vulnerability risk: Low

CVSSv4.0: 1.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-33159

CWE-ID: CWE-287

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Converged Security and Management Engine (CSME)
Hardware solutions / Firmware
Intel Active Management Technology
Hardware solutions / Firmware

Vendor: Intel

Description

The vulnerability allows a local user to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in firmware. A local administrator can bypass authentication process and gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Converged Security and Management Engine (CSME): before 11.8.93

Intel Active Management Technology: before 11.8.93

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00610.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.