CVE-2022-1388
F5 BIG-IP Missing Authentication Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 31 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.95% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 12 May 2022
- CISA KEV
- Listed 10 May 2022 · due 31 May 2022 · used in ransomware campaigns
- Weakness
- CWE-306
- Affected
- 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 · f5/big-ip domain name system · f5/big-ip fraud protection service · f5/big-ip global traffic manager · f5/big-ip link controller · f5/big-ip local traffic manager · f5/big-ip policy enforcement manager
- Source
- f5sirt@f5.com
EPSS 100.0% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2022-1388
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/167007/F5-BIG-IP-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167118/F5-BIG-IP-16.0.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167150/F5-BIG-IP-iControl-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K23605346Mitigation, Vendor Advisory
- https://www.secpod.com/blog/critical-f5-big-ip-remote-code-execution-vulnerability-patch-now/Exploit, Mitigation, Third Party Advisory
- http://packetstormsecurity.com/files/167007/F5-BIG-IP-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167118/F5-BIG-IP-16.0.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167150/F5-BIG-IP-iControl-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K23605346Mitigation, Vendor Advisory
- https://www.secpod.com/blog/critical-f5-big-ip-remote-code-execution-vulnerability-patch-now/Exploit, Mitigation, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1388US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.