SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-22984

On BIG-IP Advanced WAF and ASM version 15.1.x before 15.1.0.2, 15.0.x before 15.0.1.4, 14.1.x before 14.1.2.5, 13.1.x before 13.1.3.4, 12.1.x before 12.1.5.2, and 11.6.x before 11.6.5.2, when receiving a unauthenticated client request with a maliciously…

MEDIUM 6.1EPSS 1.12%

Does this matter?

Lower severity and a low EPSS score (1.12%). Track it; it rarely justifies an emergency change on its own.

Description

On BIG-IP Advanced WAF and ASM version 15.1.x before 15.1.0.2, 15.0.x before 15.0.1.4, 14.1.x before 14.1.2.5, 13.1.x before 13.1.3.4, 12.1.x before 12.1.5.2, and 11.6.x before 11.6.5.2, when receiving a unauthenticated client request with a maliciously crafted URI, a BIG-IP Advanced WAF or ASM virtual server configured with a DoS profile with Proactive Bot Defense (versions prior to 14.1.0), or a Bot Defense profile (versions 14.1.0 and later), may subject clients and web servers to Open Redirection attacks. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.12% probability · 64th percentile
CISA KEV
Not listed
Weakness
CWE-601
Affected
f5/big-ip advanced web application firewall · f5/big-ip application security manager
Source
f5sirt@f5.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.