CVE-2024-45160

Incorrect credential validation in LemonLDAP::NG 2.18.x and 2.19.x before 2.19.2 allows attackers to bypass OAuth2 client authentication via an empty…

Critical · published October 9, 2024

CVSS v3.1
9.1
EPSS
1%
Percentile
43.4
In the wild
Unconfirmed
What it is

🚨 A simple empty string could unlock the door! An incorrect credential validation in LemonLDAP::NG allows attackers to bypass OAuth2 authentication with an empty client_password — talk about a security gap! 🔥 Think of it like a restaurant that lets anyone in just by saying 'I have a reservation' without checking if they actually booked a table. Suddenly, anyone can dine without permission, leaving the restaurant vulnerable to unwanted guests! If exploited, this vulnerability allows attackers to gain unauthorized access to resources, potentially exposing sensitive data or taking control of user accounts. This could lead to a cascade of breaches, all starting from a single missed check. The ramifications are absolutely devastating!

Put simply

Think of it like a restaurant that lets anyone in just by saying 'I have a reservation' without checking if they actually booked a table. Suddenly, anyone can dine without permission, leaving the restaurant vulnerable to unwanted guests! This CVE in LemonLDAP::NG versions 2.18.x and 2.19.x before 2.19.2 allows attackers to bypass client authentication by submitting an empty client_password parameter, leading to unauthorized access.

What to do

If exploited, this vulnerability allows attackers to gain unauthorized access to resources, potentially exposing sensitive data or taking control of user accounts. This could lead to a cascade of breaches, all starting from a single missed check. The ramifications are absolutely devastating! Update to version 2.19.2 immediately to close this critical gap. Ensure that proper validation checks are in place for all client credentials to prevent similar bypass scenarios in the future. Conduct a thorough review of your OAuth2 implementations! You've got this! By taking these steps, you'll fortify your defenses and reclaim your security hero status! 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00522 · 43.4th percentile
Published
2024-10-09T00:00Z
EPSS history
Timeline
  • 09 OCT 00:00Z
    Incorrect credential validation in LemonLDAP::NG 2.18.x and 2.19.x before 2.19.2 allows attackers to bypass OAuth2 client authentication via an empty…
    cvelistv5