Denial of service in BIG-IQ Centralized Management

1) Missing authentication for critical function

EUVDB-ID: #VU51396

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22995

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to the system.

The vulnerability exists due to missing authentication while accessing the Corosync daemon in
BIG-IQ high availability (HA) when using a Quorum device for automatic failover. A remote non-authenticated attacker can alter data or perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IQ Centralized Management: 6.0.0 - 7.1.0.3

External links

http://support.f5.com/csp/article/K13155201

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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