Improper access control in Intel products - CVE-2020-12290

Vulnerability identifier: #VU54122

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-12290

CWE-ID: CWE-284

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and perform a denial of service (DoS) attack.

Intel Thunderbolt DSL5520
Intel Thunderbolt DSL5320
Intel Thunderbolt DSL6340
Intel Thunderbolt DSL6540
Intel Thunderbolt JHL6240
Intel Thunderbolt JHL7040
Intel Thunderbolt JHL8040R
Intel Thunderbolt JHL8010R
Intel Thunderbolt JHL6540
Intel Thunderbolt JHL6340
Intel Thunderbolt JHL7540
Intel Thunderbolt JHL7340
Intel Thunderbolt JHL7440

Install updates from vendor's website.

Intel Thunderbolt JHL6240 - update to 21
Intel Thunderbolt JHL7040 - update to 22
Intel Thunderbolt JHL8040R - update to 41
Intel Thunderbolt JHL8010R - update to 41
Intel Thunderbolt JHL6540 - update to 46
Intel Thunderbolt JHL6340 - update to 46
Intel Thunderbolt JHL7540 - update to 60
Intel Thunderbolt JHL7340 - update to 60
Intel Thunderbolt JHL7440 - update to 60

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00401.html

• Multiple vulnerabilities in Intel Thunderbolt Controllers