CVE-2024-46483

Xlight FTP Server <3.9.4.3 has an integer overflow vulnerability in the packet parsing logic of the SFTP server, which can lead to a heap overflow with…

Critical · published October 22, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
65.6
In the wild
Unconfirmed
What it is

🔥 An integer overflow in Xlight FTP Server <3.9.4.3 could turn your data into a playground for attackers! Think of it as a ticking time bomb in a restaurant kitchen — one wrong ingredient (like an overflowing packet) could cause chaos, spilling hazardous content everywhere. Just like a poorly timed dish could ruin a dinner service, this vulnerability could spill sensitive data into the wrong hands! If exploited, attackers could achieve a heap overflow, leading to unauthorized access or even complete control of the server. This is no small hiccup; it’s an open invitation for data breaches, potentially jeopardizing all information it handles!

Put simply

Think of it as a ticking time bomb in a restaurant kitchen — one wrong ingredient (like an overflowing packet) could cause chaos, spilling hazardous content everywhere. Just like a poorly timed dish could ruin a dinner service, this vulnerability could spill sensitive data into the wrong hands! This vulnerability arises from an integer overflow in the SFTP server's packet parsing logic, allowing attackers to craft malicious content that could overflow the heap and execute arbitrary code.

What to do

If exploited, attackers could achieve a heap overflow, leading to unauthorized access or even complete control of the server. This is no small hiccup; it’s an open invitation for data breaches, potentially jeopardizing all information it handles! Immediately upgrade to the latest version of Xlight FTP Server, at least 3.9.4.4 or higher. Implement strict content validation to filter any abnormal packet sizes during the parsing process. Regularly audit your server configurations to eliminate potential vulnerabilities! You've got this! By taking these steps, you’ll fortify your server against this threat in no time. 🛡️

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
0.01108 · 65.6th percentile
Published
2024-10-22T00:00Z
EPSS history
Timeline
  • 22 OCT 00:00Z
    Xlight FTP Server <3.9.4.3 has an integer overflow vulnerability in the packet parsing logic of the SFTP server, which can lead to a heap overflow with…
    cvelistv5