CVE-2024-39227

GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16…

Critical · published August 6, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
67.7
In the wild
Unconfirmed
What it is

🚨 Unauthenticated access is the name of the game here! An insecure permissions flaw in GL-iNet devices could let attackers execute arbitrary code with just a crafted JSON payload. 🔥 Think of this like a security guard at a high-tech facility that's forgotten to check IDs; anyone can waltz in and gain access to sensitive areas without so much as a glance. That’s the same vulnerability happening at the /cgi-bin/glc endpoint! If exploited, an attacker could potentially run any code they desire on your device, which is absolutely devastating! This could lead to unauthorized access to sensitive data, a compromised network, or even complete control of the device. It's a nightmare scenario for any user relying on these devices.

Put simply

Think of this like a security guard at a high-tech facility that's forgotten to check IDs; anyone can waltz in and gain access to sensitive areas without so much as a glance. That’s the same vulnerability happening at the /cgi-bin/glc endpoint! This vulnerability allows unauthenticated attackers to bypass security measures due to insecure permissions in the CGI endpoint. By sending specially crafted JSON data, attackers can execute arbitrary code or conduct directory traversal attacks.

What to do

If exploited, an attacker could potentially run any code they desire on your device, which is absolutely devastating! This could lead to unauthorized access to sensitive data, a compromised network, or even complete control of the device. It's a nightmare scenario for any user relying on these devices. Take immediate action by patching your devices to the latest firmware version! Ensure that all GL-iNet products are updated, specifically versions v4.3.12 and later for affected models. Review your security settings and limit access to the /cgi-bin/glc endpoint. You've got this! With these steps, you're on your way to locking down your devices effectively! 🛡️

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
0.01191 · 67.7th percentile
Published
2024-08-06T00:00Z
EPSS history
Timeline
  • 06 AUG 00:00Z
    GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16…
    cvelistv5