{"id":"CVE-2023-46747","published":"2023-10-26T21:15:08Z","modified":"2026-06-17T06:31:32Z","title":"F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability","vendor":"F5","product":"BIG-IP Configuration Utility","tier":"core","eol":null,"description":{"text":"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","provenance":"source","from":"NVD"},"summary":{"text":"The F5 BIG-IP Configuration Utility contains an authentication bypass flaw, classified as missing authentication for critical functionality, that exposes the product's management interface. An attacker with network access to the BIG-IP system via the management port and/or self IP addresses can send undisclosed requests that bypass configuration utility authentication and execute arbitrary system commands, with no authentication or user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:53:22Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.96715,"percentile":0.99885,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2023-10-31","dueDate":"2023-11-21","ransomware":true,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://my.f5.com/manage/s/article/K000137353;   https://nvd.nist.gov/vuln/detail/CVE-2023-46747","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-10-31","exploitedFirstSeen":"2023-10-31","ransomware":true,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2023-10-31"},{"url":"https://cyble.com/blog/active-exploitation-of-big-ip-and-citrix-vulnerabilities-observed-by-cyble-global-sensor-intelligence-network/","date":"2023-11-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-29&host_type=src&vulnerability=cve-2023-46747","date":"2023-11-29"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-03&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-05&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-05"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-06&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-06"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-07&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-07"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-08&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-14&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-16&host_type=src&vulnerability=cve-2023-46747","date":"2023-12-16"}],"evidenceTotal":739,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"references":[{"url":"http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://my.f5.com/manage/s/article/K000137353","tags":["Vendor Advisory"]},{"url":"https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/","tags":["Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://my.f5.com/manage/s/article/K000137353","tags":["Vendor Advisory"]},{"url":"https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46747","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: network-reachable management interface exploited directly","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allowing an attacker with network access to the BIG-IP system through the management port","start":70,"end":159}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: arbitrary command execution on the host","mappingType":"primary_impact","evidence":[{"from":"description","quote":"execute arbitrary system commands","start":188,"end":221}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[{"id":"SRC-500293498a830ece4488","title":"The Mac Malware of 2024","publisher":"objective-see.org","url":"https://objective-see.org/downloads/MacMalware_2024.pdf","date":null,"mentions":[{"quote":"“Bringing Access Back — Initial Access Brokers Exploit F5 BIG-IP (CVE-2023-46747) and ScreenConnect”","start":115449,"end":115549}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-50916","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-50916","exploited":true,"exploitedSince":"2023-10-31","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":8,"skipped":0,"earliest":"2023-11-01","earliestUrl":"https://github.com/W01fh4cker/CVE-2023-46747-RCE","repos":[{"name":"W01fh4cker/CVE-2023-46747-RCE","url":"https://github.com/W01fh4cker/CVE-2023-46747-RCE","stars":206,"created":"2023-11-01"},{"name":"nvansluis/test_cve-2023-46747","url":"https://github.com/nvansluis/test_cve-2023-46747","stars":7,"created":"2023-11-02"},{"name":"Razzlemouse/F5-BIG-IP-SmuggleShell-CVE-2023-46747-Exploit","url":"https://github.com/Razzlemouse/F5-BIG-IP-SmuggleShell-CVE-2023-46747-Exploit","stars":4,"created":"2025-12-03"},{"name":"RevoltSecurities/CVE-2023-46747","url":"https://github.com/RevoltSecurities/CVE-2023-46747","stars":3,"created":"2023-11-03"},{"name":"maniak-academy/Mitigate-CVE-2023-46747","url":"https://github.com/maniak-academy/Mitigate-CVE-2023-46747","stars":2,"created":"2023-11-01"}]},"metasploit":[{"name":"F5 BIG-IP TMUI AJP Smuggling RCE","module":"exploit/linux/http/f5_bigip_tmui_rce_cve_2023_46747","type":"exploit","disclosureDate":"2023-10-26","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/f5_bigip_tmui_rce_cve_2023_46747.rb"}],"nuclei":[{"id":"CVE-2023-46747","name":"F5 BIG-IP - Unauthenticated RCE via AJP Smuggling","severity":"critical","path":"http/cves/2023/CVE-2023-46747.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-46747.yaml"}],"first":{"date":"2023-10-26","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/f5_bigip_tmui_rce_cve_2023_46747.rb"},"provenance":"source"},"detections":{"cveRules":[{"title":"CVE-2023-46747 Exploitation Activity - Proxy","id":"f195b2ff-e542-41bf-8d91-864fb81e5c20","level":"high","status":"test","path":"rules-emerging-threats/2023/Exploits/CVE-2023-46747/proxy_cve_2023_46747_f5_remote_code_execution.yml","url":"https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2023/Exploits/CVE-2023-46747/proxy_cve_2023_46747_f5_remote_code_execution.yml","techniques":["T1190"]},{"title":"CVE-2023-46747 Exploitation Activity - Webserver","id":"e9928831-ba14-42ea-a4bc-33d352b9929a","level":"high","status":"test","path":"rules-emerging-threats/2023/Exploits/CVE-2023-46747/web_cve_2023_46747_f5_remote_code_execution.yml","url":"https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2023/Exploits/CVE-2023-46747/web_cve_2023_46747_f5_remote_code_execution.yml","techniques":["T1190"]}]},"exploitRefs":["http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html","https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2023-10-26","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46747","provenance":"source"},{"date":"2023-10-26","kind":"exploit-public","label":"First public exploit: Metasploit; later: PoC-in-GitHub 2023-11-01","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/f5_bigip_tmui_rce_cve_2023_46747.rb","provenance":"source"},{"date":"2023-10-31","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2023-10-31","kind":"kev","label":"Added to CISA KEV (known ransomware use)","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2023-10-31","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-50916","provenance":"source"}],"speed":{"daysToPublicExploit":0,"firstExploitFrom":"Metasploit","daysToKev":5},"priority":{"score":83.7,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1096 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":19.98,"detail":"percentile 0.9989"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":5.0,"detail":"2 NVD references tagged Exploit; 8 PoC-in-GitHub repos; 1 Metasploit module; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}