Laravel up to 9.31.x HTTP/2 hasValidCredentials timing discrepancy

Summaryinfo

A vulnerability, which was classified as critical, has been found in Laravel up to 9.31.x. This vulnerability affects the function hasValidCredentials of the component HTTP2 Handler. The manipulation leads to timing discrepancy. This vulnerability is uniquely identified as CVE-2022-40482. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Laravel up to 9.31.x and classified as problematic. This issue affects the function hasValidCredentials of the component HTTP2 Handler. The manipulation with an unknown input leads to a timing discrepancy vulnerability. Using CWE to declare the problem leads to CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. Impacted is confidentiality. The summary by CVE is:

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.

The weakness was disclosed 04/25/2023. The advisory is shared at ephort.dk. The identification of this vulnerability is CVE-2022-40482 since 09/11/2022. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 9.32.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Laravel

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11
• 9.12
• 9.13
• 9.14
• 9.15
• 9.16
• 9.17
• 9.18
• 9.19
• 9.20
• 9.21
• 9.22
• 9.23
• 9.24
• 9.25
• 9.26
• 9.27
• 9.28
• 9.29
• 9.30
• 9.31

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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