Vulnerability identifier: #VU50613

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22980

CWE-ID: CWE-427

Exploitation vector: Network

Exploit availability: No

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

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to the Client Troubleshooting Utility on Windows loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file on a remote SMB fileshare, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

APM Clients: 7.1.5 - 7.2.1

BIG-IP APM: 11.6.1 - 16.0.1

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External links
http://support.f5.com/csp/article/K29282483

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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.