Get a demo
100% Signal 0% Noise Invicti Logo - The Largest Dynamic Application Security Solutions Provider In The World Get a demo
Envoy Proxy Improper Encoding or Escaping of Output Vulnerability - CVE-2023-35941 - Vulnerability Database
Envoy Proxy

Envoy Proxy Improper Encoding or Escaping of Output Vulnerability - CVE-2023-35941

Critical
Reference: CVE-2023-35941
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2023-35941
Title: Envoy Proxy Improper Encoding or Escaping of Output Vulnerability
Overview:

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0 1.26.4 1.25.9 1.24.10 and 1.23.12 a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter39s check. Versions 1.27.0 1.26.4 1.25.9 1.24.10 and 1.23.12 have a fix for this issue. As a workaround avoid wildcards/prefix domain wildcards in the host39s domain configuration.