nic-6443 commented on code in PR #12366:
URL: https://github.com/apache/apisix/pull/12366#discussion_r2162918558


##########
apisix/init.lua:
##########
@@ -391,6 +400,17 @@ local function verify_https_client(ctx)
                            ", but the host is ", host)
             return false
         end
+
+        local session_hostname, err = apisix_ssl.session_hostname()
+        if err then
+            core.log.error("failed to get session hostname: ", err)
+            return false
+        end
+        if session_hostname and session_hostname ~= ngx.ctx.client_hello_sni 
then
+            core.log.error("sni in client hello mismatch hostname of ssl 
session, ",
+                             "sni: ", ngx.ctx.client_hello_sni, ", hostname: 
", session_hostname)
+            return false
+        end

Review Comment:
   > Maybe they could be moved to a new function with some comments explaining 
why this verification is done "to fix a security issue".
   
   done



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