CVE-2024-24753

Public Exploit
Bref Multiple Value Headers Not Supported in ApiGatewayFormatV2

Description

Bref enable serverless PHP on AWS Lambda. When Bref is used in combination with an API Gateway with the v2 format, it does not handle multiple values headers. If PHP generates a response with two headers having the same key but different values only the latest one is kept. If an application relies on multiple headers with the same key being set for security reasons, then Bref would lower the application security. For example, if an application sets multiple `Content-Security-Policy` headers, then Bref would just reflect the latest one. This vulnerability is patched in 2.1.13.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.14%
Vendor Advisory github.com
Affected: brefphp bref
Published at:
Updated at:

References

Link Tags
https://github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9r vendor advisory exploit
https://github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dc patch

Frequently Asked Questions

What is the severity of CVE-2024-24753?
CVE-2024-24753 has been scored as a medium severity vulnerability.
How to fix CVE-2024-24753?
To fix CVE-2024-24753, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-24753 being actively exploited in the wild?
It is possible that CVE-2024-24753 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-24753?
CVE-2024-24753 affects brefphp bref.
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