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Medium severity · published Feb 12, 2021
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…
6.1
CVSS
1.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Advanced Web Application Firewall · F5
11.6.1 before 11.6.5.2; 12.1.0 before 12.1.5.2; 13.1.0 before 13.1.3.4; 14.1.0 before 14.1.2.5; 15.0.0 before 15.0.1.4; 15.1.0 before 15.1.0.2 · source: NVD
BA
Big-ip Application Security Manager · F5
11.6.1 before 11.6.5.2; 12.1.0 before 12.1.5.2; 13.1.0 before 13.1.3.4; 14.1.0 before 14.1.2.5; 15.0.0 before 15.0.1.4; 15.1.0 before 15.1.0.2 · source: NVD
Affected product
BA
Big-ip Advanced Web Application Firewall
F5
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22984
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22984
Vendor Advisory
https://support.f5.com/csp/article/K33440533
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