Vulnerability Details : 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 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.
Vulnerability category: Input validation
Products affected by CVE-2021-23028
- F5 » Big-ip Application Security ManagerVersions from including (>=) 14.1.3.1 and up to, including, (<=) 14.1.4.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 13.1..3.5 and up to, including, (<=) 13.1.3.6cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 15.1.0 and before (<) 15.1.3.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_application_security_manager:16.0.1:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Web Application FirewallVersions from including (>=) 13.1.3.5 and up to, including, (<=) 13.1.3.6cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Web Application FirewallVersions from including (>=) 14.1.3.1 and up to, including, (<=) 14.1.4.1cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Web Application FirewallVersions from including (>=) 15.1.1 and before (<) 15.1.3.1cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:16.0.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23028
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23028
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-23028
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by:
- f5sirt@f5.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-23028
-
https://support.f5.com/csp/article/K00602225
Advanced WAF and BIG-IP ASM vulnerability CVE-2021-23028Mitigation;Vendor Advisory
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