Privilege escalation in Intel BSSA DFT feature



Published: 2021-07-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-0144
CWE-ID CWE-453
Exploitation vector Local
Public exploit N/A
Vulnerable software
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2nd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware

Intel Core X-series Processors
Hardware solutions / Firmware

Intel Xeon W Processors
Hardware solutions / Firmware

Intel Xeon D Processors
Hardware solutions / Firmware

Intel Xeon Processor E5 v3 Family
Hardware solutions / Firmware

Intel Xeon Processor E5 v4 Family
Hardware solutions / Firmware

Intel Xeon Scalable Processors
Hardware solutions / Other hardware appliances

Vendor Intel

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Insecure default variable initialization

EUVDB-ID: #VU54833

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-0144

CWE-ID: CWE-453 - Insecure Default Variable Initialization

Exploit availability: No

Description

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

The vulnerability exists due to insecure default variable initialization for the Intel BSSA DFT feature. A local user can run a specially crafted program to execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

2nd Generation Intel Xeon Scalable Processors: All versions

Intel Xeon Scalable Processors: All versions

Intel Core X-series Processors: All versions

Intel Xeon W Processors: All versions

Intel Xeon D Processors: All versions

Intel Xeon Processor E5 v3 Family: All versions

Intel Xeon Processor E5 v4 Family: All versions


CPE2.3 External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00525.html

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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