CVE-2023-46747
F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 21 November 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 96.71% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 31 October 2023 · due 21 November 2023 · used in ransomware campaigns
- Weakness
- CWE-288, CWE-306
- Affected
- f5/big-ip access policy manager · f5/big-ip advanced firewall manager · f5/big-ip advanced web application firewall · f5/big-ip carrier-grade nat · f5/big-ip ddos hybrid defender · f5/big-ip ssl orchestrator · f5/big-ip domain name system · f5/big-ip local traffic manager · f5/big-ip policy enforcement manager · f5/big-ip automation toolchain · f5/big-ip container ingress services · f5/big-ip application security manager · f5/big-ip analytics · f5/big-ip application acceleration manager · f5/big-ip application visibility and reporting · f5/big-ip fraud protection services · f5/big-ip global traffic manager · f5/big-ip link controller · f5/big-ip webaccelerator · f5/big-ip websafe
- Source
- f5sirt@f5.com
EPSS 96.7% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://my.f5.com/manage/s/article/K000137353; https://nvd.nist.gov/vuln/detail/CVE-2023-46747
References
- http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://my.f5.com/manage/s/article/K000137353Vendor Advisory
- https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://my.f5.com/manage/s/article/K000137353Vendor 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-2023-46747US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.