CVE-2024-45237

An issue was discovered in Fort before 1.6.3

Critical · published August 24, 2024

CVSS v3.1
9.8
EPSS
0%
Percentile
28.1
In the wild
Unconfirmed
What it is

🚨 A malicious RPKI repository can exploit a tiny oversight in Fort, causing a buffer overflow with just a resource certificate! 🔥 Think of it like trying to pour a gallon of milk into a pint-sized glass — it’s bound to spill everywhere if you don’t watch out! In this case, the buffer gets overwhelmed by an oversized input, leading to potential chaos. With this vulnerability, an attacker could potentially manipulate the Fort software to execute arbitrary code, taking control of your system. This oversight could lead to devastating consequences like data theft or system disruption, leaving your network wide open for malicious activities.

Put simply

Think of it like trying to pour a gallon of milk into a pint-sized glass — it’s bound to spill everywhere if you don’t watch out! In this case, the buffer gets overwhelmed by an oversized input, leading to potential chaos. This vulnerability occurs due to Fort's failure to properly sanitize the length of a Key Usage extension when writing it into a 2-byte buffer. A crafted resource certificate can cause an overflow, allowing an attacker to execute arbitrary code.

What to do

With this vulnerability, an attacker could potentially manipulate the Fort software to execute arbitrary code, taking control of your system. This oversight could lead to devastating consequences like data theft or system disruption, leaving your network wide open for malicious activities. Immediately update Fort to version 1.6.3 or later to fix this critical overflow issue. Additionally, consider implementing strict input validation to safeguard against similar vulnerabilities in the future. You've got this! Follow these steps, and you'll be well on your way to securing your systems! 🛡️

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
0.00356 · 28.1th percentile
Published
2024-08-24T00:00Z
EPSS history
Timeline
  • 24 AUG 00:00Z
    An issue was discovered in Fort before 1.6.3
    cvelistv5