CVE-2023-32564

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 remove…

Medium · published August 10, 2023

CVSS v3.0
6.8
EPSS
44%
Percentile
98.8
In the wild
Unconfirmed
What it is

⚠️ An unrestricted file upload flaw in Avalanche versions 6.4.1 and below could open the door to remote code execution! This is no small oversight! Think of it like a restaurant that allows anyone to drop off food without checking — you might end up serving something harmful without realizing it! If an attacker exploits this vulnerability, they could upload a malicious file and take full control of your server. This could lead to data theft, unauthorized access, or worse, complete system compromise – not a dinner party you want to host!

Put simply

Think of it like a restaurant that allows anyone to drop off food without checking — you might end up serving something harmful without realizing it! This vulnerability allows attackers to upload files of any type, potentially including executable code, without proper validation or checks. When the server processes these files, it can lead to remote code execution.

What to do

If an attacker exploits this vulnerability, they could upload a malicious file and take full control of your server. This could lead to data theft, unauthorized access, or worse, complete system compromise – not a dinner party you want to host! To secure your system, upgrade to Avalanche version 6.4.2 or later, which patches this vulnerability. Additionally, implement strict file type validation and limit uploads to only necessary file types to mitigate risks. You've got this! Follow these steps, and you'll have your defenses up and running in no time! 🛡️

The record
Technical detail
CVSS v3.0
6.8 · MEDIUM
Vector
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.44427 · 98.8th percentile
Published
2023-08-10T19:04Z
EPSS history
Timeline
  • 10 AUG 19:04Z
    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 remove…
    cvelistv5