CVE-2024-40867

A custom URL scheme handling issue was addressed with improved input validation

High · published October 28, 2024

CVSS v3.1
8.8
EPSS
1%
Percentile
54.1
In the wild
Unconfirmed
What it is

⚡ A crafty URL scheme handling issue is opening a sneaky backdoor! An attacker could potentially escape the Web Content sandbox, creating chaos on your device. 🔥 Think of it like a hotel guest who finds a way to sneak into restricted areas — if they can get past the front desk checks, they could access areas that hold sensitive information. In this case, the URL scheme acts as that sneaky guest, bypassing security that was supposed to keep it contained. This vulnerability could allow a remote attacker to break free from the Web Content sandbox, potentially accessing sensitive data and functionalities on the device. Imagine the consequences of unauthorized access — personal photos, messages, and other information could be at risk, leading to privacy breaches or worse. This is definitely one to take seriously!

Put simply

Think of it like a hotel guest who finds a way to sneak into restricted areas — if they can get past the front desk checks, they could access areas that hold sensitive information. In this case, the URL scheme acts as that sneaky guest, bypassing security that was supposed to keep it contained. CVE-2024-40867 involves a failure in input validation for custom URL schemes, enabling attackers to escape the protective Web Content sandbox in iOS and iPadOS. This flaw could allow malicious URLs to execute unauthorized actions within the app ecosystem.

What to do

This vulnerability could allow a remote attacker to break free from the Web Content sandbox, potentially accessing sensitive data and functionalities on the device. Imagine the consequences of unauthorized access — personal photos, messages, and other information could be at risk, leading to privacy breaches or worse. This is definitely one to take seriously! Update to iOS 18.1 or iPadOS 18.1 immediately to seal this vulnerability. Regularly review and check for any suspicious URL schemes in your applications to preemptively safeguard against similar issues. Staying vigilant is key! You've got this! Following these steps will help keep your devices secure and your data safe. 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00737 · 54.1th percentile
Published
2024-10-28T21:07Z
EPSS history
Timeline
  • 28 OCT 21:07Z
    A custom URL scheme handling issue was addressed with improved input validation
    cvelistv5