Description
The code which checks HMAC in form submissions used String.equals() for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payload. The comparison should be done with a constant time algorithm instead.
Remediation
References
https://lists.apache.org/thread.html/6e8f42c88da7be3c60aafe3f6a85eb00b4f8b444de26b38d36233a43%40%3Cusers.tapestry.apache.org%3E
https://lists.apache.org/thread.html/7a437dad5af7309aba4d01bfc2463b3ac34e6aafaa565381d3a36460%40%3Cusers.tapestry.apache.org%3E
https://lists.apache.org/thread.html/bac8d6f9e1b4059b319d9cba6f33219a99b81623476ec896138f851c%40%3Cusers.tapestry.apache.org%3E
https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad1beba5f8091e0c%40%3Ccommits.tapestry.apache.org%3E
https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7db25b068dc30843%40%3Ccommits.tapestry.apache.org%3E
Related Vulnerabilities
CVE-2021-31404 Vulnerability in maven package com.vaadin:flow-server
CVE-2022-31142 Vulnerability in npm package @fastify/bearer-auth
CVE-2017-9735 Vulnerability in maven package org.eclipse.jetty:jetty-util
CVE-2017-13098 Vulnerability in maven package org.bouncycastle:bctls-jdk15on
CVE-2020-26939 Vulnerability in maven package org.bouncycastle:bcprov-jdk15on