CVE-2023-46263

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker to achieve a remote…

High · published December 19, 2023

Patch now

High probability of exploitation

CVSS calls it high at 7.2. It sits in the 99.7th percentile for exploit probability.

CVSS v3.0
7.2
EPSS
82%
Percentile
99.7
In the wild
Unconfirmed
What it is

🚨 An unrestricted file upload vulnerability in Avalanche versions 6.4.1 and below could be the golden ticket for attackers looking to execute malicious code. 🔥 Think of it like a restaurant accepting any dish without checking the ingredients—one rogue chef could slip in a dish that causes chaos in the kitchen! The consequences could be catastrophic: an attacker could upload a dangerous file that allows them to execute arbitrary code, potentially taking control of your entire system. Imagine a burglar not just breaking into your house, but claiming it as their own!

Put simply

Think of it like a restaurant accepting any dish without checking the ingredients—one rogue chef could slip in a dish that causes chaos in the kitchen! This vulnerability allows for unrestricted uploads of dangerous file types, leading to remote code execution. Essentially, the application does not properly validate or restrict the type of files being uploaded.

What to do

The consequences could be catastrophic: an attacker could upload a dangerous file that allows them to execute arbitrary code, potentially taking control of your entire system. Imagine a burglar not just breaking into your house, but claiming it as their own! To mitigate this risk, ensure you upgrade Avalanche to version 6.4.2 immediately. Additionally, implement strict file type validation and server-side security checks to prevent unauthorized file uploads. You've got this! With these steps, you'll lock down your application and keep the bad guys out! 🛡️

The record
Technical detail
CVSS v3.0
7.2 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.81884 · 99.7th percentile
Published
2023-12-19T15:43Z
EPSS history
Timeline
  • 19 DEC 15:43Z
    An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker to achieve a remote…
    cvelistv5