From 33b18c3509f4b2083d6f31ef576538c2e7a8ea44 Mon Sep 17 00:00:00 2001
From: Marco Boss <marco.boss@switch.ch>
Date: Mon, 4 Mar 2024 13:41:03 +0100
Subject: [PATCH] [mTLS] Fix acme verfication when mTLS and Client CN
 verification is enabled

---
 rootfs/etc/nginx/template/nginx.tmpl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/rootfs/etc/nginx/template/nginx.tmpl b/rootfs/etc/nginx/template/nginx.tmpl
index d58be2880..381fc134c 100644
--- a/rootfs/etc/nginx/template/nginx.tmpl
+++ b/rootfs/etc/nginx/template/nginx.tmpl
@@ -985,8 +985,10 @@ stream {
 
         {{ if not ( empty $server.CertificateAuth.MatchCN ) }}
         {{ if gt (len $server.CertificateAuth.MatchCN) 0 }}
-        if ( $ssl_client_s_dn !~ {{ $server.CertificateAuth.MatchCN }} ) {
-            return 403 "client certificate unauthorized";
+        location ~ ^/(?!(\.well-known/acme-challenge)) {
+            if ( $ssl_client_s_dn !~ {{ $server.CertificateAuth.MatchCN }} ) {
+                return 403 "client certificate unauthorized";
+            }
         }
         {{ end }}
         {{ end }}