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CVE-2021-22978

HIGHCVSS 8.3/10EPSS 0.79%

Last modified

CVE-2021-22978 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. On BIG-IP version 16.0.x before 16.0.1, 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x and 11.6.x versions, undisclosed endpoints in iControl REST allow for a reflected XSS attack, which could lead to a complete compromise of BIG-IP if the victim user is granted the admin role. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

On BIG-IP version 16.0.x before 16.0.1, 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x and 11.6.x versions, undisclosed endpoints in iControl REST allow for a reflected XSS attack, which could lead to a complete compromise of BIG-IP if the victim user is granted the admin role. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Metrics

CVSS 3.1
8.3/10

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

EPSS Probability
0.79%

51.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.5
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Access Policy Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Access Policy Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Access Policy Manager>= 15.1.0, < 15.1.1
F5Big-Ip Access Policy Manager>= 16.0.0, < 16.0.1
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.5
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Advanced Firewall Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Advanced Firewall Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.1
F5Big-Ip Advanced Firewall Manager>= 16.0.0, < 16.0.1
F5Big-Ip Advanced Web Application Firewall>= 11.6.1, <= 11.6.5
F5Big-Ip Advanced Web Application Firewall>= 12.1.0, <= 12.1.5
F5Big-Ip Advanced Web Application Firewall>= 13.1.0, < 13.1.3.5
F5Big-Ip Advanced Web Application Firewall>= 14.1.0, < 14.1.3.1
F5Big-Ip Advanced Web Application Firewall>= 15.1.0, < 15.1.1
F5Big-Ip Advanced Web Application Firewall>= 16.0.0, < 16.0.1
F5Big-Ip Analytics>= 11.6.1, <= 11.6.5
F5Big-Ip Analytics>= 12.1.0, <= 12.1.5
F5Big-Ip Analytics>= 13.1.0, < 13.1.3.5
F5Big-Ip Analytics>= 14.1.0, < 14.1.3.1
F5Big-Ip Analytics>= 15.1.0, < 15.1.1
F5Big-Ip Analytics>= 16.0.0, < 16.0.1
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.5
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Application Acceleration Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Application Acceleration Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.1
F5Big-Ip Application Acceleration Manager>= 16.0.0, < 16.0.1
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.5
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Application Security Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Application Security Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.1
F5Big-Ip Application Security Manager>= 16.0.0, < 16.0.1
F5Big-Ip Ddos Hybrid Defender>= 11.6.1, <= 11.6.5
F5Big-Ip Ddos Hybrid Defender>= 12.1.0, <= 12.1.5
F5Big-Ip Ddos Hybrid Defender>= 13.1.0, < 13.1.3.5
F5Big-Ip Ddos Hybrid Defender>= 14.1.0, < 14.1.3.1
F5Big-Ip Ddos Hybrid Defender>= 15.1.0, < 15.1.1
F5Big-Ip Ddos Hybrid Defender>= 16.0.0, < 16.0.1
F5Big-Ip Domain Name System>= 11.6.1, <= 11.6.5
F5Big-Ip Domain Name System>= 12.1.0, <= 12.1.5
F5Big-Ip Domain Name System>= 13.1.0, < 13.1.3.5
F5Big-Ip Domain Name System>= 14.1.0, < 14.1.3.1
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.1
F5Big-Ip Domain Name System>= 16.0.0, < 16.0.1
F5Big-Ip Fraud Protection Service>= 11.6.1, <= 11.6.5
F5Big-Ip Fraud Protection Service>= 12.1.0, <= 12.1.5

Showing 50 of 84 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22978?
On BIG-IP version 16.0.x before 16.0.1, 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x and 11.6.x versions, undisclosed endpoints in iControl REST allow for a reflected XSS attack, which could lead to a complete compromise of BIG-IP if the victim user is granted the admin role. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
How severe is CVE-2021-22978?
CVE-2021-22978 has a CVSS score of 8.3/10 (HIGH severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22978?
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-2021-22978?

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

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Source: NVD / NIST