CVE-2023-7221CWE-120

Totolink T6 HTTP POST Request main buffer overflow

Critical · published January 9, 2024

CVSS v3.1
9.8
EPSS
2%
Percentile
74.4
In the wild
Unconfirmed
What it is

🚨 A buffer overflow vulnerability in Totolink T6 could let attackers waltz right in with a single HTTP POST request! 🔥 Think of this like a crowded café where one customer can easily push their way to the counter, causing a domino effect that disrupts everything. In this case, the argument manipulation leads to overflow, creating chaos inside your system. If exploited, an attacker could remotely execute harmful commands, gaining full control over your device. This means they could access sensitive data, change settings, or even hijack the device entirely, making it a critical issue that demands your immediate attention!

Put simply

Think of this like a crowded café where one customer can easily push their way to the counter, causing a domino effect that disrupts everything. In this case, the argument manipulation leads to overflow, creating chaos inside your system. The vulnerability resides in the main function of the file /cgi-bin/cstecgi.cgi, specifically related to the argument v41. When manipulated, it triggers a buffer overflow which can be exploited by sending a specifically crafted HTTP POST request.

What to do

If exploited, an attacker could remotely execute harmful commands, gaining full control over your device. This means they could access sensitive data, change settings, or even hijack the device entirely, making it a critical issue that demands your immediate attention! To mitigate this risk, immediately patch to the latest version of your Totolink T6 firmware. Additionally, consider implementing network security measures such as firewalls to monitor and filter incoming traffic. You've got this! By taking action now, you're on the path to securing your network. 🛡️

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
0.01518 · 74.4th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2024-01-09T14:00Z
EPSS history
Timeline
  • 09 JAN 14:00Z
    Totolink T6 HTTP POST Request main buffer overflow
    cvelistv5