CVE-2022-40482

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://ephort.dk/blog/laravel-timing-attack-vulnerability/
• https://github.com/ephort/laravel-user-enumeration-demo
• https://github.com/laravel/framework/pull/44069
• https://github.com/laravel/framework/releases/tag/v9.32.0

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://ephort.dk/blog/laravel-timing-attack-vulnerability/
• https://github.com/ephort/laravel-user-enumeration-demo
• https://github.com/laravel/framework/pull/44069
• https://github.com/laravel/framework/releases/tag/v9.32.0

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