CVE-2022-40482

low-risk
Published 2023-04-25

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.

Do I need to act?

-
0.30% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Laravel

References (8)

Exploit https://ephort.dk/blog/laravel-timing-attack-vulnerability/
Exploit https://github.com/ephort/laravel-user-enumeration-demo
Patch https://github.com/laravel/framework/pull/44069
Release Notes https://github.com/laravel/framework/releases/tag/v9.32.0
Exploit https://ephort.dk/blog/laravel-timing-attack-vulnerability/
Exploit https://github.com/ephort/laravel-user-enumeration-demo
Patch https://github.com/laravel/framework/pull/44069
Release Notes https://github.com/laravel/framework/releases/tag/v9.32.0
27
/ 100
low-risk
Severity 21/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal