Vulnerability · Published Sep 14, 2021 · Assigned by f5

CVE-2021-23028

High 7.5

In plain English

A high-severity improper input validation in BIG-IP Advanced WAF and BIG-IP ASM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)0.9%top 39.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	BIG-IP Advanced WAF and BIG-IP ASM	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

Weakness: CWE-20

References

https://support.f5.com/csp/article/K00602225 x_refsource_MISC