CVE-2023-46747: F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability

CISA Known Exploited Vulnerabilities

Name

F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability

Vendor

F5

Product

BIG-IP Configuration Utility

Added to the catalog

2023-10-31

Due date for US federal agencies

2023-11-21

Weaknesses

CWE-288

Catalog version

2026.10.30

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.

Required action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Ransomware use: CISA marks this vulnerability as known to be used in ransomware campaigns. CISA does not say which group used it.

Links in CISA's notes

• https://my.f5.com/manage/s/article/K000137353
• https://nvd.nist.gov/vuln/detail/CVE-2023-46747

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2023-10-26T21:15:08.097

Last modified

2026-06-17T06:31:32.640

Weaknesses

CWE-288, CWE-306

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

References

• 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)
• 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)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:08.214Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-46747

CVE record

Title (CNA)

BIG-IP Configuration utility unauthenticated remote code execution vulnerability

Assigner

f5

State

PUBLISHED

Published

2023-10-26T20:04:53.929Z

Updated

2025-10-21T23:05:33.431Z

Problem types

CWE-288 Authentication Bypass Using an Alternate Path or Channel

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

References

• https://my.f5.com/manage/s/article/K000137353
• 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/

Read on 2026-11-03T02:04:53.427Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/46xxx/CVE-2023-46747.json

Detection rules (SigmaHQ)

SigmaHQ rules whose own tags name this CVE. Each rule page shows the rule as its author published it.

• CVE-2023-46747 Exploitation Activity - Webserver (status test, level high)
• CVE-2023-46747 Exploitation Activity - Proxy (status test, level high)

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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