F5 · BIG-IP Configuration Utility
CVE-2023-46747
BIG-IP Configuration utility unauthenticated remote code execution vulnerability
What it is
Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
CISA: 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.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: November 21, 2023
More exploited flaws from F5
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Oct 31, 2023 | SQL Injection | BIG-IP Configuration Utility | High 8.8 | 4.2% |
| Sep 22, 2026 | Heap-based Buffer Overflow | BIG-IP APM | Critical 9.3 | 25% |
| Mar 27, 2026 | Stack-Based Buffer Overflow | BIG-IP | Critical 9.3 | 2.3% |
| May 10, 2022 | Missing Authentication | BIG-IP | Critical 9.8 | >99.9% |
| Jan 18, 2022 | Buffer Overflow | BIG-IP Traffic Management Microkernel | Critical 9.8 | 62% |
| Nov 3, 2021 | Traffic Management User Interface (TMUI) Remote Code Execution | BIG-IP | Critical 9.8 | >99.9% |
| Nov 3, 2021 | iControl REST Remote Code Execution | BIG-IP and BIG-IQ Centralized Management | Critical 9.8 | 99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.