Privilege escalation in Intel Xeon Processors with Intel Software Guard Extensions (SGX)

1) Unauthorized error injection

EUVDB-ID: #VU79378

Risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41804

CWE-ID: CWE-1334 - Unauthorized Error Injection Can Degrade Hardware Redundancy

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to unauthorized error injection in some Intel Xeon Processors with Intel Software Guard Extensions (SGX). A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

3rd Generation Intel Xeon Scalable Processors: All versions

Intel Xeon D Processors: All versions

4th Generation Intel Xeon Scalable Processors: All versions

External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00837.html

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.