Untrusted Pointer Dereference in Insyde AsfSecureBootSmm driver

1) Untrusted Pointer Dereference

EUVDB-ID: #VU60264

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5953

CWE-ID: CWE-822 - Untrusted Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to untrusted pointer dereference error in System Management Interrupt (SWSMI) handler. A remote attacker can trigger pointer dereference and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AsfSecureBootSmm: before 05.42.03.0010

External links

http://www.insyde.com/security-pledge
http://www.insyde.com/products

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.