CVE-2021-22986KEV · OVERDUE

F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution Vulnerability

Critical · published March 31, 2021

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

1802
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🔥 There's a gaping hole in the BIG-IP systems — an unauthenticated remote command execution vulnerability lurking in the iControl REST interface! Think of it like a front desk clerk in a hotel who hands out key cards without verifying identities. If someone walks in and claims to be a guest, they could access any room — that's the risk here! An attacker could remotely execute commands on your system without any authentication, potentially leading to complete control over your devices. This could result in unauthorized access to sensitive data, service disruptions, and a nightmare for network administrators trying to maintain security.

Put simply

Think of it like a front desk clerk in a hotel who hands out key cards without verifying identities. If someone walks in and claims to be a guest, they could access any room — that's the risk here! This vulnerability allows unauthenticated attackers to execute arbitrary commands on vulnerable BIG-IP and BIG-IQ versions through the iControl REST API, making it a critical weakness.

What to do

An attacker could remotely execute commands on your system without any authentication, potentially leading to complete control over your devices. This could result in unauthorized access to sensitive data, service disruptions, and a nightmare for network administrators trying to maintain security. Immediately patch your BIG-IP and BIG-IQ systems to the latest versions: 16.0.1.1, 15.1.2.1, 14.1.4, 13.1.3.6, and 12.1.5.3. Also, review and tighten access controls to the iControl REST interface to prevent unauthorized access. You've got this! Take action now to safeguard your systems and keep those vulnerabilities at bay! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99898 · 100.0th percentile
Published
2021-03-31T14:04Z
KEV added
2021-11-03 · due 2021-11-17
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by Nov 17
    kev
  • 31 MAR 14:04Z
    On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3 amd BIG-IQ 7.1.0.x…
    cvelistv5