CVE-2024-43663CWE-121

Buffer overflow vulnerabilities in CGI scripts lead to segfault

Medium · published January 9, 2025

CVSS v4.0
5.3
EPSS
1%
Percentile
62.9
In the wild
Unconfirmed
What it is

⚠️ Buffer overflow vulnerabilities have snuck into Iocharger firmware for AC model chargers before version 24120701! Think of it as a charging station that's a bit too generous with its power, but not quite ready to execute an all-out attack. ⚡ Imagine a restaurant where the chef is so eager to please that they overflow the pots with too much soup! The kitchen might temporarily get messy (a segmentation fault), but the restaurant can still serve customers without a hitch. That's what's happening here with the CGI binaries! While attackers can trigger a 502 Bad Gateway error, the web server will keep chugging along like a trooper. But here's the kicker: with advanced skills, a clever attacker could potentially leverage these overflows for remote code execution, which would be a surprisingly sneaky way to turn the tables. Yikes!

Put simply

Imagine a restaurant where the chef is so eager to please that they overflow the pots with too much soup! The kitchen might temporarily get messy (a segmentation fault), but the restaurant can still serve customers without a hitch. That's what's happening here with the CGI binaries! This vulnerability stems from multiple buffer overflows in CGI binaries of the Iocharger firmware. These flaws could allow an attacker to manipulate the charger’s web interface, possibly leading to remote code execution, despite ASLR being enabled for extra protection.

What to do

While attackers can trigger a 502 Bad Gateway error, the web server will keep chugging along like a trooper. But here's the kicker: with advanced skills, a clever attacker could potentially leverage these overflows for remote code execution, which would be a surprisingly sneaky way to turn the tables. Yikes! Update your Iocharger firmware to version 24120701 or later as soon as possible. Regularly check for updates and consider implementing additional network security measures to mitigate exposure. 🔒 You've got this! With a quick firmware update, you can stay ahead of the game and ensure your charging station is secure! 🛡️

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/AU:Y/R:A
EPSS
0.01015 · 62.9th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2025-01-09T07:56Z
EPSS history
Timeline
  • 09 JAN 07:56Z
    Buffer overflow vulnerabilities in CGI scripts lead to segfault
    cvelistv5