CVE-2020-5902KEV · OVERDUE

F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability

Critical · published July 1, 2020

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.

1634
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 An undisclosed page in BIG-IP could let attackers execute code remotely — think of it as an unguarded back door just waiting for someone to stroll right in! 🔥 Imagine a hotel with a secret entrance that no one ever checks. If a crafty intruder finds it, they could sneak into the management office and change all the room keys! An attacker could exploit this vulnerability to run any code they choose, effectively taking full control of the BIG-IP system. This could lead to unauthorized access to sensitive configurations, service disruptions, or worse! Security breaches like this could have absolutely devastating consequences for your network security.

Put simply

Imagine a hotel with a secret entrance that no one ever checks. If a crafty intruder finds it, they could sneak into the management office and change all the room keys! This vulnerability allows remote code execution through the Traffic Management User Interface (TMUI), which is accessible on certain versions of BIG-IP. The lack of proper access controls on undisclosed pages means attackers can inject and execute malicious commands remotely, compromising the system.

What to do

An attacker could exploit this vulnerability to run any code they choose, effectively taking full control of the BIG-IP system. This could lead to unauthorized access to sensitive configurations, service disruptions, or worse! Security breaches like this could have absolutely devastating consequences for your network security. To mitigate this risk, immediately upgrade to BIG-IP versions 15.1.0.4, 14.1.2.6, 13.1.3.4, 12.1.5.2, or 11.6.5.2. Ensure that proper access controls are implemented, and audit configurations to detect any unauthorized changes. You've got this! With a quick update and some vigilance, you can lock down your BIG-IP setup and keep those pesky intruders 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
0.99999 · 100.0th percentile
Published
2020-07-01T00:00Z
KEV added
2021-11-03 · due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by May 3
    kev
  • 01 JUL 00:00Z
    In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also…
    cvelistv5