CVE-2022-36032

ReactPHP's HTTP server parses encoded cookie names so malicious `__Host-` and `__Secure-` cookies can be sent

Description

ReactPHP HTTP is a streaming HTTP client and server implementation for ReactPHP. In ReactPHP's HTTP server component versions starting with 0.7.0 and prior to 1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like `__Host-` and `__Secure-` confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. This issue is fixed in ReactPHP HTTP version 1.7.0. As a workaround, Infrastructure or DevOps can place a reverse proxy in front of the ReactPHP HTTP server to filter out any unexpected `Cookie` request headers.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.15%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: reactphp http
Published at:
Updated at:

References

Link Tags
https://github.com/reactphp/http/security/advisories/GHSA-w3w9-vrf5-8mx8 patch third party advisory issue tracking
https://github.com/reactphp/http/pull/175 patch third party advisory issue tracking
https://github.com/reactphp/http/commit/663c9a3b77b71463fa7fcb76a6676ffd16979dd6 third party advisory patch
https://github.com/reactphp/http/releases/tag/v1.7.0 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-36032?
CVE-2022-36032 has been scored as a medium severity vulnerability.
How to fix CVE-2022-36032?
To fix CVE-2022-36032, 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-2022-36032 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-36032 is being actively exploited. 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-2022-36032?
CVE-2022-36032 affects reactphp http.
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