Administrator-session compromise via reflected iControl REST XSS
Published Feb 12, 2021 · Updated Aug 3, 2024
Reflected XSS in F5 BIG-IP 11.6.x through 16.0.x allows remote attackers to compromise the device through an administrator's browser. Undisclosed iControl REST endpoints reflect attacker-controlled request data into responses that execute as script in the victim's browser. Exploitation requires an administrator to open a crafted request, after which the script runs with that session's authority and can completely compromise the appliance.
Summary
What happened
Reflected XSS in F5 BIG-IP 11.6.x through 16.0.x allows remote attackers to compromise the device through an administrator's browser. Undisclosed iControl REST endpoints reflect attacker-controlled request data into responses that execute as script in the victim's browser. Exploitation requires an administrator to open a crafted request, after which the script runs with that session's authority and can completely compromise the appliance.
The record
- CVE
- CVE-2021-22978
- Published
- Feb 12, 2021
- Updated
- Aug 3, 2024
- Vendor
- F5 Networks
- Product
- BIG-IP
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 12, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=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
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo