CVE-2022-40482

MEDIUM EPSS 54.6%
Published Apr 25, 20233y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Apr 25, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
54.6% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-203

Affected Products 2

VendorProductVersionRange
laravelframework*≥8.0.0  –  <8.83.24
laravelframework*≥9.0.0  –  <9.32.0

References 4

  • ephort.dk https://ephort.dk/blog/laravel-timing-attack-vulnerability/
    ExploitTechnical DescriptionThird Party Advisory
  • github.com https://github.com/ephort/laravel-user-enumeration-demo
    ExploitThird Party Advisory
  • github.com https://github.com/laravel/framework/pull/44069
    PatchVendor Advisory
  • github.com https://github.com/laravel/framework/releases/tag/v9.32.0
    Release Notes

Remediation

  • github.com https://github.com/laravel/framework/pull/44069
    PatchVendor Advisory