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CVE-2022-1388

F5 BIG-IP Missing Authentication

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 100.0%
  1. Published5 May 2022
  2. Added to CISA KEV10 May 2022
  3. Remediation due31 May 2022
Actively exploited (CISA KEV)

F5 BIG-IP contains a missing authentication in critical function vulnerability which can allow for remote code execution, creation or deletion of files, or disabling services.

Added to KEV: 10 May 2022Federal remediation due: 31 May 2022Used in ransomware

Description

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. 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≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Advanced Firewall Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Analytics≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Application Acceleration Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Application Security Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Domain Name System≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Fraud Protection Service≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Global Traffic Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Link Controller≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Local Traffic Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6
F5 Big-ip Policy Enforcement Manager≥ 11.6.1 ≤ 11.6.5 · ≥ 12.1.0 ≤ 12.1.6 · ≥ 13.1.0 < 13.1.5 · ≥ 14.1.0 < 14.1.4.6

Remediation

Fixed in
F5 Big-ip Access Policy Manager≥ 13.1.5
F5 Big-ip Advanced Firewall Manager≥ 13.1.5
F5 Big-ip Analytics≥ 13.1.5
F5 Big-ip Application Acceleration Manager≥ 13.1.5
F5 Big-ip Application Security Manager≥ 13.1.5
F5 Big-ip Domain Name System≥ 13.1.5
F5 Big-ip Fraud Protection Service≥ 13.1.5
F5 Big-ip Global Traffic Manager≥ 13.1.5
F5 Big-ip Link Controller≥ 13.1.5
F5 Big-ip Local Traffic Manager≥ 13.1.5

References

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Frequently asked

Is CVE-2022-1388 being actively exploited?

Yes. CVE-2022-1388 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 10 May 2022. It has been used in ransomware campaigns.

How severe is CVE-2022-1388?

CVE-2022-1388 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 100.0% probability of exploitation.

Which products are affected by CVE-2022-1388?

Affected products include F5 Big-ip Access Policy Manager, F5 Big-ip Advanced Firewall Manager, F5 Big-ip Analytics, F5 Big-ip Application Acceleration Manager, F5 Big-ip Application Security Manager, and 6 more.

How do I fix CVE-2022-1388?

Upgrade affected software to a fixed version, for example F5 Big-ip Access Policy Manager 13.1.5, F5 Big-ip Advanced Firewall Manager 13.1.5, F5 Big-ip Analytics 13.1.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-1388 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.