Multiple vulnerabilities in Dell Precision 7920 Rack

Published: 2022-11-22

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-33126 CVE-2021-33128
CWE-ID	CWE-284
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Precision 7920 Rack Hardware solutions / Firmware
Vendor	Dell

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU66488

Risk: Low

CVSSv3.1: 4.5 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33126

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

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

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

Precision 7920 Rack: before 21.5.9

External links

http://www.dell.com/support/kbdoc/nl-nl/000205568/dsa-2022-318-dell-client-security-update-for-intel-ethernet-controllers-and-adapters-vulnerabilities

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.

2) Improper access control

EUVDB-ID: #VU66494