#VU95132 Time-of-check Time-of-use (TOCTOU) Race Condition in PowerEdge Server BIOS and Precision Rack BIOS - CVE-2024-0163

Vulnerability identifier: #VU95132

Vulnerability risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-0163

CWE-ID: CWE-367

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PowerEdge Server BIOS
Other software / Other software solutions
Precision Rack BIOS
Other software / Other software solutions

Vendor: Dell

Description

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

The vulnerability exists due to TOCTOU race condition. A local low privileged attacker could potentially exploit this vulnerability to gain access to otherwise unauthorized resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PowerEdge Server BIOS: All versions

Precision Rack BIOS: All versions

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External links
https://www.dell.com/support/kbdoc/en-us/000222756/dsa-2024-003-security-update-for-dell-poweredge-server-bios-for-a-time-of-check-time-of-use-toctou-vulnerability

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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.