#VU51416 Input validation error in BIG-IQ Centralized Management - CVE-2021-22996

Vulnerability identifier: #VU51416

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22996

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IQ Centralized Management
Server applications / Remote management servers, RDP, SSH

Vendor: F5 Networks

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send specially crafted message to the BIG-IQ Data Collection Device (DCD) cluster member that was set up for auto failover and cause the corosync process to abort, which leads to a denial of service.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IQ Centralized Management: 7.0.0 - 7.1.0.3

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External links
https://support.f5.com/csp/article/K16352404

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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.