CVE-2023-46747
F5 — F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability
F5 · CWE-288 | CWE-306 · in CISA KEV since 2023-10-31
EVRS 93 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 92 of 2,960 tracked
Why it scores 93
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
big-ip access policy manager: update to a version newer than 13.1.5 | big-ip access policy manager: update to a version newer than 14.1.5 | big-ip access policy manager: update to a version newer than 15.1.10 | big-ip access policy manager: update to a version newer than 16.1.4 | big-ip access policy manager: update to a version newer than 17.1.1 | big-ip advanced firewall manager: update to a version newer than 13.1.5
Affected versions
- big-ip access policy manager
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip advanced firewall manager
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip advanced web application firewall
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip carrier-grade nat
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip ddos hybrid defender
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip ssl orchestrator
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip domain name system
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1 - big-ip local traffic manager
>= 13.1.0 <= 13.1.5>= 14.1.0 <= 14.1.5>= 15.1.0 <= 15.1.10>= 16.1.0 <= 16.1.4>= 17.1.0 <= 17.1.1
+12 more affected products; see the full list at NVD.
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.965 (99.88th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2023-11-21 · KEV since 2023 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by f5. | Listed | ENISA EUVD |
Description
NVDUndisclosed 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
What CISA says to do
Public module
Metasploit lists a public excellent-rank module for this CVE: F5 BIG-IP TMUI AJP Smuggling RCE (linux/http/f5_bigip_tmui_rce_cve_2023_46747). A module existing is not the same as active exploitation; see metasploit.com.