CVE-2023-46747: F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability
F5 BIG-IP Configuration utility contains an authentication bypass using an alternate path or channel vulnerability due to undisclosed requests that may allow an unauthenticated attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute system commands. This vulnerability can be used in conjunction with CVE-2023-46748.
| Vendor | F5 |
|---|---|
| Product | BIG-IP Configuration Utility |
| Date added to KEV | 2023-10-31 |
| Due date (BOD 22-01) | 2023-11-21 |
| Known ransomware campaign use | Known |
| CWE | CWE-288 |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
What to do
- Identify every instance of F5 BIG-IP Configuration Utility in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Federal civilian agencies must act by 2023-11-21 under BOD 22-01; other organizations can use the same date as a target.
- Because ransomware use is known, check for signs of compromise and confirm backups are offline and tested.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
This CVE is flagged by CISA as known to be used in ransomware campaigns. Rehearse your response before you need it: Ransomware tabletop exercise kit (Runbook Foundry).
Sources
- NVD entry for CVE-2023-46747 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://my.f5.com/manage/s/article/K000137353
- https://nvd.nist.gov/vuln/detail/CVE-2023-46747