High severity · published Sep 14, 2021
CVE-2021-23028
On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, and 13.1.x before 13.1.4, when JSON content profiles are configured for URLs as part of an F5…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, and 13.1.x before 13.1.4, when JSON content profiles are configured for URLs as part of an F5 Advanced Web Application Firewall (WAF)/BIG-IP ASM security policy and applied to a virtual server, undisclosed requests may cause the BIG-IP ASM 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)0.9% · higher than 61% 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
13.1.3.5 through 13.1.3.6; 14.1.3.1 through 14.1.4.1; 15.1.1 before 15.1.3.1; 16.0.1 · source: NVD
BA
Big-ip Application Security Manager · F5
13.1..3.5 through 13.1.3.6; 14.1.3.1 through 14.1.4.1; 15.1.0 before 15.1.3.1; 16.0.1 · source: NVD
Affected product
BA
Big-ip Advanced Web Application Firewall
F5
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23028
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23028
Mitigation
https://support.f5.com/csp/article/K00602225
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