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Append :!aNULL:!eNULL:!EXP to the cipher string settings,

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instead of prepending !aNULL:!eNULL:!EXP: (as was the case in 2.4.7
and later). Enables support for configuring the SUITEB* cipher
strings introduced in OpenSSL 1.0.2. PR 58213.

Apply the same treatment to the "SSLOpenSSLConfCmd CipherString ..." directive.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1702643 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Kaspar Brand
2015-09-12 15:33:28 +00:00
parent fa96de5f32
commit 0a30649059
4 changed files with 16 additions and 6 deletions
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5
CHANGES
View File

@@ -1,6 +1,11 @@
-*- coding: utf-8 -*-
Changes with Apache 2.5.0
*) mod_ssl: append :!aNULL:!eNULL:!EXP to the cipher string settings,
instead of prepending !aNULL:!eNULL:!EXP: (as was the case in 2.4.7
and later). Enables support for configuring the SUITEB* cipher
strings introduced in OpenSSL 1.0.2. PR 58213. [Kaspar Brand]
*) mod_autoindex: Allow autoindexes when neither mod_dir nor mod_mime are
loaded. [Eric Covener]

4
docs/manual/mod/mod_ssl.xml
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@@ -742,8 +742,8 @@ prefixes are:</p>
<title><code>aNULL</code>, <code>eNULL</code> and <code>EXP</code>
ciphers are always disabled</title>
<p>Beginning with version 2.4.7, null and export-grade
ciphers are always disabled, as mod_ssl unconditionally prepends any supplied
cipher suite string with <code>!aNULL:!eNULL:!EXP:</code> at initialization.</p>
ciphers are always disabled, as mod_ssl unconditionally adds
<code>!aNULL:!eNULL:!EXP</code> to any cipher string at initialization.</p>
</note>
<p>A simpler way to look at all of this is to use the ``<code>openssl ciphers

9
modules/ssl/ssl_engine_config.c
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@@ -671,7 +671,7 @@ const char *ssl_cmd_SSLCipherSuite(cmd_parms *cmd,
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
/* always disable null and export ciphers */
arg = apr_pstrcat(cmd->pool, "!aNULL:!eNULL:!EXP:", arg, NULL);
arg = apr_pstrcat(cmd->pool, arg, ":!aNULL:!eNULL:!EXP", NULL);
if (cmd->path) {
dc->szCipherSuite = arg;
@@ -1394,7 +1394,7 @@ const char *ssl_cmd_SSLProxyCipherSuite(cmd_parms *cmd,
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
/* always disable null and export ciphers */
arg = apr_pstrcat(cmd->pool, "!aNULL:!eNULL:!EXP:", arg, NULL);
arg = apr_pstrcat(cmd->pool, arg, ":!aNULL:!eNULL:!EXP", NULL);
sc->proxy->auth.cipher_suite = arg;
@@ -1850,6 +1850,11 @@ const char *ssl_cmd_SSLOpenSSLConfCmd(cmd_parms *cmd, void *dcfg,
return err;
}
if (strcEQ(arg1, "CipherString")) {
/* always disable null and export ciphers */
arg2 = apr_pstrcat(cmd->pool, arg2, ":!aNULL:!eNULL:!EXP", NULL);
}
param = apr_array_push(sc->server->ssl_ctx_param);
param->name = arg1;
param->value = arg2;

4
modules/ssl/ssl_engine_init.c
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@@ -768,11 +768,11 @@ static apr_status_t ssl_init_ctx_cipher_suite(server_rec *s,
* Configure SSL Cipher Suite. Always disable NULL and export ciphers,
* see also ssl_engine_config.c:ssl_cmd_SSLCipherSuite().
* OpenSSL's SSL_DEFAULT_CIPHER_LIST includes !aNULL:!eNULL from 0.9.8f,
* and !EXP from 0.9.8zf/1.0.1m/1.0.2a, so prepend them while we support
* and !EXP from 0.9.8zf/1.0.1m/1.0.2a, so append them while we support
* earlier versions.
*/
suite = mctx->auth.cipher_suite ? mctx->auth.cipher_suite :
apr_pstrcat(ptemp, "!aNULL:!eNULL:!EXP:", SSL_DEFAULT_CIPHER_LIST,
apr_pstrcat(ptemp, SSL_DEFAULT_CIPHER_LIST, ":!aNULL:!eNULL:!EXP",
NULL);
ap_log_error(APLOG_MARK, APLOG_TRACE1, 0, s,