#VU28990 Information disclosure in Converged Security and Management Engine (CSME) and Intel Trusted Execution Engine Firmware - CVE-2020-0536

Vulnerability identifier: #VU28990

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-0536

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

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

Vendor: Intel

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper input validation in the DAL subsystem. A remote attacker can gain unauthorized access to sensitive information on the system.

Note: This vulnerability affects the following versions of Intel CSME and TXE:

CSME:

• 11.0 through 11.8.76
• 11.10 through 11.11.76
• 11.20 through 11.22.76
• 12.0 through 12.0.63

TXE:

• 3.0 through 3.1.70
• 4.0 through 4.0.20

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Converged Security and Management Engine (CSME): 13.0.31 - 14.0.32

Intel Trusted Execution Engine Firmware: before 3.1.75

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.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?

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