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CVE-2021-23038

CRITICALCVSS 9/10EPSS 0.89%

Last modified

CVE-2021-23038 is a critical-severity vulnerability rated 9/10 on the CVSS scale. 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, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

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, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS 3.1
9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS Probability
0.89%

54.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Access Policy Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Access Policy Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Access Policy Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Access Policy Manager>= 16.0.0, < 16.0.1.2
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Advanced Firewall Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Advanced Firewall Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Advanced Firewall Manager>= 16.0.0, < 16.0.1.2
F5Big-Ip Analytics>= 12.1.0, <= 12.1.6
F5Big-Ip Analytics>= 13.1.0, < 13.1.4.1
F5Big-Ip Analytics>= 14.1.0, < 14.1.4.2
F5Big-Ip Analytics>= 15.1.0, < 15.1.3.1
F5Big-Ip Analytics>= 16.0.0, < 16.0.1.2
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Application Acceleration Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Application Acceleration Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Application Acceleration Manager>= 16.0.0, < 16.0.1.2
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Application Security Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Application Security Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Application Security Manager>= 16.0.0, < 16.0.1.2
F5Big-Ip Domain Name System>= 12.1.0, <= 12.1.6
F5Big-Ip Domain Name System>= 13.1.0, < 13.1.4.1
F5Big-Ip Domain Name System>= 14.1.0, < 14.1.4.2
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.3.1
F5Big-Ip Domain Name System>= 16.0.0, < 16.0.1.2
F5Big-Ip Fraud Protection Service>= 12.1.0, <= 12.1.6
F5Big-Ip Fraud Protection Service>= 13.1.0, < 13.1.4.1
F5Big-Ip Fraud Protection Service>= 14.1.0, < 14.1.4.2
F5Big-Ip Fraud Protection Service>= 15.1.0, < 15.1.3.1
F5Big-Ip Fraud Protection Service>= 16.0.0, < 16.0.1.2
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Global Traffic Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Global Traffic Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Global Traffic Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Global Traffic Manager>= 16.0.0, < 16.0.1.2
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.6
F5Big-Ip Link Controller>= 13.1.0, < 13.1.4.1
F5Big-Ip Link Controller>= 14.1.0, < 14.1.4.2
F5Big-Ip Link Controller>= 15.1.0, < 15.1.3.1
F5Big-Ip Link Controller>= 16.0.0, < 16.0.1.2
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.6
F5Big-Ip Local Traffic Manager>= 13.1.0, < 13.1.4.1
F5Big-Ip Local Traffic Manager>= 14.1.0, < 14.1.4.2
F5Big-Ip Local Traffic Manager>= 15.1.0, < 15.1.3.1
F5Big-Ip Local Traffic Manager>= 16.0.0, < 16.0.1.2

Showing 50 of 55 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-23038?
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, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How severe is CVE-2021-23038?
CVE-2021-23038 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.
How do I fix CVE-2021-23038?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23038?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST