CVEs / CVE-2023-46747
CVE-2023-46747: F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 31 Oct 2023
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 96.7% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
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
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| F5 BIG-IP | from 17.1.0 onwards | — |
| F5 BIG-IP | from 16.1.0 onwards | — |
| F5 BIG-IP | from 15.1.0 onwards | — |
| F5 BIG-IP | from 14.1.0 onwards | — |
| F5 BIG-IP | from 13.1.0 onwards | — |
Exploitation
| In CISA KEV since | 31 Oct 2023 |
|---|---|
| Due date for US federal agencies | 21 Nov 2023 |
| Used in ransomware campaigns | Known |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-288, CWE-306 |
References
- CVE-2023-46747 on NVD
- CVE-2023-46747 in the CISA KEV catalog
- https://my.f5.com/manage/s/article/K000137353 (cited by CISA)
- http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://my.f5.com/manage/s/article/K000137353 Vendor Advisory
- https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/ Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46747 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.