CVE-2024-42546

TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the password parameter in the loginauth function

Critical · published August 12, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
49.5
In the wild
Unconfirmed
What it is

🔥 A single oversized password is all it takes to unleash chaos! This buffer overflow in the TOTOLINK A3100R's loginauth function is a ticking time bomb. ⚡ Think of this like a suitcase that's too full to close — if you force it, the contents spill everywhere! In this case, the overflow can corrupt memory, potentially allowing an attacker to take control of your device. The consequences could be absolutely devastating! An attacker could exploit this flaw to gain unauthorized access, manipulate your network settings, or even launch further attacks on connected devices. It’s like handing over the keys to your whole digital house!

Put simply

Think of this like a suitcase that's too full to close — if you force it, the contents spill everywhere! In this case, the overflow can corrupt memory, potentially allowing an attacker to take control of your device. This vulnerability occurs due to a buffer overflow in the password parameter of the loginauth function, which fails to properly validate the input length. This allows an attacker to overwrite memory and potentially execute arbitrary code.

What to do

The consequences could be absolutely devastating! An attacker could exploit this flaw to gain unauthorized access, manipulate your network settings, or even launch further attacks on connected devices. It’s like handing over the keys to your whole digital house! To safeguard your network, immediately update your TOTOLINK A3100R to the latest firmware version available. Additionally, consider changing all default passwords and implementing strong password policies to mitigate risk. Don't wait – act now! You've got this! With these steps, you’ll be well on your way to securing your network and becoming a security hero! 🛡️

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
0.00629 · 49.5th percentile
Published
2024-08-12T00:00Z
EPSS history
Timeline
  • 12 AUG 00:00Z
    TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the password parameter in the loginauth function
    cvelistv5