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CVE-2022-1388

F5 — F5 BIG-IP Missing Authentication Vulnerability

F5 · CWE-306 · in CISA KEV since 2022-05-10

ExigentKEV since 2022 · listed over a yearRansomwareCISA KEVActively Exploited
94

EVRS 94 of 100 Immediate

Out-of-Band / Urgent Remediation

Rank 45 of 2,955 tracked

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Why it scores 94

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and associated with known ransomware campaigns.

  • CISA KEVApplied
  • RansomwareApplied
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

Patch or fixed version identified

CISA required action

Fixed in

big-ip access policy manager: update to a version newer than 11.6.5 | big-ip access policy manager: update to a version newer than 12.1.6 | big-ip access policy manager: update to 13.1.5 or later | big-ip access policy manager: update to 14.1.4.6 or later | big-ip access policy manager: update to 15.1.5.1 or later | big-ip access policy manager: update to 16.1.2.2 or later

Affected versions

  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2
  • 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>= 15.1.0 < 15.1.5.1>= 16.1.0 < 16.1.2.2

+3 more affected products; see the full list at NVD.

Remediation

Apply updates per vendor instructions.

Fixed versions from NVD.

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 9.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.999 (99.98th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Known CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-05-31 · KEV since 2022 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by f5. Listed ENISA EUVD

Description

NVD

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

What CISA says to do

Public module

Metasploit lists a public excellent-rank module for this CVE: F5 BIG-IP iControl RCE via REST Authentication Bypass (linux/http/f5_icontrol_rce). A module existing is not the same as active exploitation; see metasploit.com.