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CVE-2023-46747

F5 BIG-IP Configuration Utility Authentication Bypass

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 96.5%
  1. Published26 Oct 2023
  2. Added to CISA KEV31 Oct 2023
  3. Remediation due21 Nov 2023
Actively exploited (CISA KEV)

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.

Added to KEV: 31 Oct 2023Federal remediation due: 21 Nov 2023Used in ransomware

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

F5 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
F5 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
F5 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
F5 Big-ip Analytics≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 Big-ip Application Acceleration 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
F5 Big-ip Application Security 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
F5 Big-ip Application Visibility And Reporting≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 Big-ip Automation Toolchain≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 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
F5 Big-ip Container Ingress Services≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 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
F5 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
F5 Big-ip Fraud Protection Services≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 Big-ip Global 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
F5 Big-ip Link Controller≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 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
F5 Big-ip Policy Enforcement 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
F5 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
F5 Big-ip Webaccelerator≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4
F5 Big-ip Websafe≥ 13.1.0 ≤ 13.1.5 · ≥ 14.1.0 ≤ 14.1.5 · ≥ 15.1.0 ≤ 15.1.10 · ≥ 16.1.0 ≤ 16.1.4

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2023-46747 being actively exploited?

Yes. CVE-2023-46747 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 31 Oct 2023. It has been used in ransomware campaigns.

How severe is CVE-2023-46747?

CVE-2023-46747 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 96.5% probability of exploitation.

Which products are affected by CVE-2023-46747?

Affected products include F5 Big-ip Access Policy Manager, F5 Big-ip Advanced Firewall Manager, F5 Big-ip Advanced Web Application Firewall, F5 Big-ip Analytics, F5 Big-ip Application Acceleration Manager, and 15 more.

How do I fix CVE-2023-46747?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-46747 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.