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High severity · published Sep 14, 2021
CVE-2021-23050
On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery…
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery (CSRF)-enabled policy is configured on a virtual server, an undisclosed HTML response may cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% 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
15.1.0 before 15.1.3.1; 16.0.0 before 16.0.1.2 · source: NVD
BA
Big-ip Application Security Manager · F5
15.1.0 before 15.1.3.1; 16.0.0 before 16.0.1.2 · source: NVD
NA
Nginx App Protect · F5
1.0.0 through 1.3.0; 2.0.0 through 2.3.0; 3.0.0 before 3.5.0 · source: NVD
Affected product
BA
Big-ip Advanced Web Application Firewall
F5
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23050
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23050
Vendor Advisory
https://support.f5.com/csp/article/K44553214
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