Bug #78414 [NEW]: TLS handshake fails when the certificate chain has more than 2 certificates

From: Date: Wed, 14 Aug 2019 10:09:12 +0000
Subject: Bug #78414 [NEW]: TLS handshake fails when the certificate chain has more than 2 certificates
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-222244@lists.php.net to get a copy of this message
From:             romain at thouvenin dot pro
Operating system: Ubuntu 16.04
PHP version:      7.1.31
Package:          OpenSSL related
Bug Type:         Bug
Bug description:TLS handshake fails when the certificate chain has more than 2 certificates

Description:
------------
Using the test code below, I am able to open a SSL connection to a
RabbitMQ server if the cert file has only 2 certificates (the client
certificate and one intermediate certificate) but not if it contains the
full chain of certificates (client cert, 3 intermediates and the root)
provided by the CA (my use case is a wildcard certificate provided by
Sectigo).

The problem might be related to some implementation detail of RabbitMQ
(software written in Erlang) because I am able to connect to a `openssl
s_server` with the full chain. But at the same time, I am also able to
connect to the RabbitMQ server with the full chain from a `openssl
s_client` and from a Ruby client. 
To recap:

 PHP client (fullchain)  -> RabbitMQ         ===> KO!
 PHP client (shortchain) -> RabbitMQ         ===> OK
 PHP client (fullchain)  -> openssl s_server ===> OK
 openssl s_client (full) -> RabbitMQ         ===> OK
 Ruby client (fullchain) -> RabbitMQ         ===> OK

So whatever this implementation detail might be, other clients are able
to handle it.



Test script:
---------------
<?php

$context = stream_context_create([
    'ssl' => [
        'local_cert' => 'full-chain.pem',
        'local_pk' => 'key.pem',
    ],
]);

$errno = NULL;
$errstr = NULL;
$sock = stream_socket_client(
    'tcp://rabbitmq.domain.tld:5671',
    $errno,
    $errstr,
    3,
    STREAM_CLIENT_CONNECT,
    $context
);

stream_set_blocking($sock, true);
stream_socket_enable_crypto($sock, true,
STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT);

Expected result:
----------------
No output.

I should be able to use the full chain since the server may not have the
intermediate certificates in its trusted store.

Actual result:
--------------
PHP Warning:  stream_socket_client(): SSL operation failed with code 1.
OpenSSL Error messages:
error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake
failure


There is no SSL handshake-related output in the server logs

-- 
Edit bug report at https://bugs.php.net/bug.php?id=78414&edit=1
-- 
Fix committed:                    https://bugs.php.net/fix.php?id=78414&r=fixed
Fixed in release:                 https://bugs.php.net/fix.php?id=78414&r=alreadyfixed
Need backtrace:                   https://bugs.php.net/fix.php?id=78414&r=needtrace
Need Reproduce Script:            https://bugs.php.net/fix.php?id=78414&r=needscript
Try newer version:                https://bugs.php.net/fix.php?id=78414&r=oldversion
Not developer issue:              https://bugs.php.net/fix.php?id=78414&r=support
Expected behavior:                https://bugs.php.net/fix.php?id=78414&r=notwrong
Not enough info:                  https://bugs.php.net/fix.php?id=78414&r=notenoughinfo
Submitted twice:                  https://bugs.php.net/fix.php?id=78414&r=submittedtwice
register_globals:                 https://bugs.php.net/fix.php?id=78414&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=78414&r=phptooold
Daylight Savings:                 https://bugs.php.net/fix.php?id=78414&r=dst
IIS Stability:                    https://bugs.php.net/fix.php?id=78414&r=isapi
Install GNU Sed:                  https://bugs.php.net/fix.php?id=78414&r=gnused
Floating point limitations:       https://bugs.php.net/fix.php?id=78414&r=float
No Zend Extensions:               https://bugs.php.net/fix.php?id=78414&r=nozend
MySQL Configuration Error:        https://bugs.php.net/fix.php?id=78414&r=mysqlcfg



Thread (1 message)

  • romain at thouvenin dot pro
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