CVE-2021-40870KEV · OVERDUE

Aviatrix Controller Unrestricted Upload of File

Critical · published September 13, 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 99.8th percentile for exploit probability.

1727
days past CISA
deadline
CVSS v3.1
9.8
EPSS
93%
Percentile
99.8
In the wild
Confirmed
What it is

🚨 Unrestricted file uploads? This one spells trouble! An unauthenticated user can exploit a vulnerability in Aviatrix Controller 6.x versions before 6.5-1804.1922 to execute arbitrary code. 🔥 Think of it like a pizza delivery person who doesn't check the order before handing over the pizza. If the driver accepts any request with no questions asked, someone could replace the pepperoni pizza with a bomb! The implications here are absolutely devastating. An attacker could upload malicious files and run arbitrary code, potentially taking full control of your system. This could lead to data breaches, service outages, or worse, compromising your entire network security.

Put simply

Think of it like a pizza delivery person who doesn't check the order before handing over the pizza. If the driver accepts any request with no questions asked, someone could replace the pepperoni pizza with a bomb! This vulnerability allows unauthenticated users to upload dangerous files through directory traversal, bypassing standard security measures and executing malicious code on the server.

What to do

The implications here are absolutely devastating. An attacker could upload malicious files and run arbitrary code, potentially taking full control of your system. This could lead to data breaches, service outages, or worse, compromising your entire network security. Immediately patch your Aviatrix Controller to version 6.5-1804.1922 or later to eliminate this threat. Implement file type checks and restrict file uploads to prevent this from happening again. Regularly review and update your security protocols to stay ahead of potential exploits. You've got this! With these steps, you'll be well on your way to securing your system. 🛡️

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
0.93019 · 99.8th percentile
Published
2021-09-13T07:41Z
KEV added
2022-01-18 · due 2022-02-01
EPSS history
Timeline
  • 18 JAN 00:00Z
    Added to CISA KEV — remediate by Feb 1
    kev
  • 13 SEP 07:41Z
    An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922
    cvelistv5