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sorber pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
new ba22efd TS-4357: Remove SSLv2 and only allow SSLv3 to origin with
configure option.
ba22efd is described below
commit ba22efdd28aae323206da91fd0053a518db9dbb5
Author: Phil Sorber <[email protected]>
AuthorDate: Wed Apr 20 15:09:44 2016 -0600
TS-4357: Remove SSLv2 and only allow SSLv3 to origin with configure option.
---
configure.ac | 12 ++++++++++++
doc/admin-guide/files/records.config.en.rst | 8 --------
iocore/net/SSLConfig.cc | 19 ++++++-------------
lib/ts/ink_config.h.in | 1 +
mgmt/RecordsConfig.cc | 10 +++-------
5 files changed, 22 insertions(+), 28 deletions(-)
diff --git a/configure.ac b/configure.ac
index bac6bf0..75e391d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -332,6 +332,18 @@ AC_ARG_ENABLE([hardening],
AC_MSG_RESULT([$enable_hardening])
#
+# Enable SSLv3 to origin
+#
+AC_MSG_CHECKING([whether to enable SSLv3 config for origin connections])
+AC_ARG_ENABLE([sslv3-client],
+ [AS_HELP_STRING([--enable-sslv3-client],[Enable SSLv3 config for origin
connections (Only do this if you understand the risks)])],
+ [],
+ [enable_sslv3_client="no"]
+)
+AC_MSG_RESULT([$enable_sslv3_client])
+TS_ARG_ENABLE_VAR([use], [sslv3-client])
+
+#
# Use TPROXY for connection transparency.
#
AC_MSG_CHECKING([whether to enable TPROXY based transparency])
diff --git a/doc/admin-guide/files/records.config.en.rst
b/doc/admin-guide/files/records.config.en.rst
index 1122694..67a9b09 100644
--- a/doc/admin-guide/files/records.config.en.rst
+++ b/doc/admin-guide/files/records.config.en.rst
@@ -2643,14 +2643,6 @@ SSL Termination
ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-
[...]
-.. ts:cv:: CONFIG proxy.config.ssl.SSLv2 INT 0
-
- Enables (``1``) or disables (``0``) SSLv2. Please don't enable it.
-
-.. ts:cv:: CONFIG proxy.config.ssl.SSLv3 INT 0
-
- Enables (``1``) or disables (``0``) SSLv3.
-
.. ts:cv:: CONFIG proxy.config.ssl.TLSv1 INT 1
Enables (``1``) or disables (``0``) TLSv1.
diff --git a/iocore/net/SSLConfig.cc b/iocore/net/SSLConfig.cc
index 63540ce..1fb6ff3 100644
--- a/iocore/net/SSLConfig.cc
+++ b/iocore/net/SSLConfig.cc
@@ -72,8 +72,8 @@ SSLConfigParams::SSLConfigParams()
clientCertLevel = client_verify_depth = verify_depth = clientVerify = 0;
- ssl_ctx_options = 0;
- ssl_client_ctx_protocols = 0;
+ ssl_ctx_options = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
+ ssl_client_ctx_protocols = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
ssl_session_cache = SSL_SESSION_CACHE_MODE_SERVER_ATS_IMPL;
ssl_session_cache_size = 1024 * 100;
ssl_session_cache_num_buckets = 1024; // Sessions per bucket is
ceil(ssl_session_cache_size / ssl_session_cache_num_buckets)
@@ -161,22 +161,15 @@ SSLConfigParams::initialize()
int options;
int client_ssl_options;
- REC_ReadConfigInteger(options, "proxy.config.ssl.SSLv2");
- if (!options)
- ssl_ctx_options |= SSL_OP_NO_SSLv2;
- REC_ReadConfigInteger(options, "proxy.config.ssl.SSLv3");
- if (!options)
- ssl_ctx_options |= SSL_OP_NO_SSLv3;
REC_ReadConfigInteger(options, "proxy.config.ssl.TLSv1");
if (!options)
ssl_ctx_options |= SSL_OP_NO_TLSv1;
- REC_ReadConfigInteger(client_ssl_options, "proxy.config.ssl.client.SSLv2");
- if (!client_ssl_options)
- ssl_client_ctx_protocols |= SSL_OP_NO_SSLv2;
+#if TS_USE_SSLV3_CLIENT
REC_ReadConfigInteger(client_ssl_options, "proxy.config.ssl.client.SSLv3");
- if (!client_ssl_options)
- ssl_client_ctx_protocols |= SSL_OP_NO_SSLv3;
+ if (client_ssl_options)
+ ssl_client_ctx_protocols &= ~SSL_OP_NO_SSLv3;
+#endif
REC_ReadConfigInteger(client_ssl_options, "proxy.config.ssl.client.TLSv1");
if (!client_ssl_options)
ssl_client_ctx_protocols |= SSL_OP_NO_TLSv1;
diff --git a/lib/ts/ink_config.h.in b/lib/ts/ink_config.h.in
index c4edecd..119ed96 100644
--- a/lib/ts/ink_config.h.in
+++ b/lib/ts/ink_config.h.in
@@ -80,6 +80,7 @@
#define TS_USE_LINUX_NATIVE_AIO @use_linux_native_aio@
#define TS_USE_REMOTE_UNWINDING @use_remote_unwinding@
#define TS_USE_LUAJIT @use_luajit@
+#define TS_USE_SSLV3_CLIENT @use_sslv3_client@
#define TS_HAS_SO_PEERCRED @has_so_peercred@
diff --git a/mgmt/RecordsConfig.cc b/mgmt/RecordsConfig.cc
index 0ce9df9..b500027 100644
--- a/mgmt/RecordsConfig.cc
+++ b/mgmt/RecordsConfig.cc
@@ -1219,10 +1219,6 @@ static const RecordElement RecordsConfig[] =
//##############################################################################
{RECT_CONFIG, "proxy.config.ssl.enabled", RECD_INT, "0", RECU_RESTART_TS,
RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
,
- {RECT_CONFIG, "proxy.config.ssl.SSLv2", RECD_INT, "0", RECU_RESTART_TS,
RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
- ,
- {RECT_CONFIG, "proxy.config.ssl.SSLv3", RECD_INT, "0", RECU_RESTART_TS,
RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
- ,
{RECT_CONFIG, "proxy.config.ssl.TLSv1", RECD_INT, "1", RECU_RESTART_TS,
RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
,
{RECT_CONFIG, "proxy.config.ssl.TLSv1_1", RECD_INT, "1", RECU_RESTART_TS,
RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
@@ -1232,10 +1228,10 @@ static const RecordElement RecordsConfig[] =
,
// Client SSL protocols
- {RECT_CONFIG, "proxy.config.ssl.client.SSLv2", RECD_INT, "0",
RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
- ,
- {RECT_CONFIG, "proxy.config.ssl.client.SSLv3", RECD_INT, "1",
RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+#if TS_USE_SSLV3_CLIENT
+ {RECT_CONFIG, "proxy.config.ssl.client.SSLv3", RECD_INT, "0",
RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
,
+#endif
{RECT_CONFIG, "proxy.config.ssl.client.TLSv1", RECD_INT, "1",
RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
,
{RECT_CONFIG, "proxy.config.ssl.client.TLSv1_1", RECD_INT, "1",
RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
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