Vulnerability identifier: #VU51399

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23001

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP ASM
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the upload functionality in BIG-IP ASM allows an authenticated user to upload files to the BIG-IP system using a call to an undisclosed iControl REST endpoint. A remote authenticated user can upload large files to the system, consume all available disk space and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP ASM: 11.6.1 - 16.0.1

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External links
http://support.f5.com/csp/article/K06440657

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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