PHP握手失败TLS1.0

Question

我尝试通过连接fsockopen到sendm.cert.legalmail.it的465端口,是在意大利被称为PEC SMTPS服务.

使用任何版本的PHP我都试过这个片段工作:

<?php
fsockopen('tls://sendm.cert.legalmail.it', 465);

一切都没问题OpenSSL 1.0.2h,如果我升级到OpenSSL 1.0.2j这个片段失败并出现此错误:

    PHP Warning:  fsockopen(): SSL operation failed with code 1. OpenSSL Error messages:
    error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure in ~/Development/experimental/php-handshake/connect.php on line 3
    PHP Warning:  fsockopen(): Failed to enable crypto in ~/Development/experimental/php-handshake/connect.php on line 3
    PHP Warning:  fsockopen(): unable to connect to tls://sendm.cert.legalmail.it:465 (Unknown error) in ~/Development/experimental/php-handshake/connect.php on line 3

所以OpenSSL 1.0.2j我尝试通过命令行连接:

openssl s_client -connect sendm.cert.legalmail.it:465

它完美地运作.

我尝试使用testssl在服务器上检查SSL 这是转储(剥离):

SSLv2               not offered (OK)
SSLv3               not offered (OK)
TLS 1               offered
TLS 1.1             not offered
TLS 1.2             not offered
Version tolerance   downgraded to TLSv1.0 (OK)

只有TLS 1可用,我尝试用这个uri强制握手到TLS1:'tlsv1.0:://sendm.cert.legalmail.it'但结果是一样的.

我在Ubuntu 16.04上,使用PHP5.6和PHP7.1进行测试.

这个bug在哪里？在openssl？用PHP？在服务器握手？

如果我总是./testssl.sh -E sendm.cert.legalmail.it:465带着OpenSSL 1.0.2j返回看chiper 更新:

x05     RC4-SHA                           RSA        RC4       128      TLS_RSA_WITH_RC4_128_SHA                           
x04     RC4-MD5                           RSA        RC4       128      TLS_RSA_WITH_RC4_128_MD5                           
x16     EDH-RSA-DES-CBC3-SHA              DH 1024    3DES      168      TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA                  
x0a     DES-CBC3-SHA                      RSA        3DES      168      TLS_RSA_WITH_3DES_EDE_CBC_SHA                      
x15     EDH-RSA-DES-CBC-SHA               DH 1024    DES       56       TLS_DHE_RSA_WITH_DES_CBC_SHA                       
x09     DES-CBC-SHA                       RSA        DES       56       TLS_RSA_WITH_DES_CBC_SHA                           
x14     EXP-EDH-RSA-DES-CBC-SHA           DH(512)    DES       40,exp   TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA              
x08     EXP-DES-CBC-SHA                   RSA(512)   DES       40,exp   TLS_RSA_EXPORT_WITH_DES40_CBC_SHA                  
x06     EXP-RC2-CBC-MD5                   RSA(512)   RC2       40,exp   TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5                 
x03     EXP-RC4-MD5                       RSA(512)   RC4       40,exp   TLS_RSA_EXPORT_WITH_RC4_40_MD5      

随着版本 OpenSSL 1.0.2h

x05     RC4-SHA                           RSA        RC4       128       
x04     RC4-MD5                           RSA        RC4       128       
x16     EDH-RSA-DES-CBC3-SHA              DH 1024    3DES      168       
x0a     DES-CBC3-SHA                      RSA        3DES      168

并且php const OPENSSL_DEFAULT_STREAM_CIPHERS与它包含的所有版本相同:

ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128:AES256:HIGH:!SSLv2:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!RC4:!ADH

Answer 1

好吧，经过一番研究我找到了原因：

PHP 有一个OPENSSL_DEFAULT_STREAM_CIPHERS包含 openssl 的默认查询，使用以下命令：

openssl ciphers -v `php -r 'echo OPENSSL_DEFAULT_STREAM_CIPHERS;'`

我得到了 PHP 可以在当前安装的 openssl 版本下处理的所有密码。

在同一查询返回不同密码之间1.0.2h，1.0.2j列出了对这些密码的删除支持：

1. EDH-RSA-DES-CBC3-SHA
2. DES-CBC3-SHA

所以默认情况下 PHP 无法正确处理连接，但如果我强制使用$context此密码，则会发生连接：

$context = stream_context_create(
    [
        'ssl' => [
            'ciphers' => 'EDH-RSA-DES-CBC3-SHA:DES-CBC3-SHA',
        ],
    ]
);

$fp = stream_socket_client(
  'tls://sendm.cert.legalmail.it:465',
  $errno,
  $errstr,
  30,
  STREAM_CLIENT_CONNECT,
  $context
);