changeset:   94686:c509e6f18d7d
branch:      3.4
parent:      94681:78145e6ffb40
user:        Benjamin Peterson <benjamin@python.org>
date:        Thu Feb 19 17:57:08 2015 -0500
files:       Lib/ssl.py Misc/NEWS
description:
remove rc4 from the default client ciphers (closes #23481)


diff -r 78145e6ffb40 -r c509e6f18d7d Lib/ssl.py
--- a/Lib/ssl.py	Wed Feb 18 08:56:33 2015 -0500
+++ b/Lib/ssl.py	Thu Feb 19 17:57:08 2015 -0500
@@ -170,14 +170,12 @@
 #   * Prefer any AES-GCM over any AES-CBC for better performance and security
 #   * Then Use HIGH cipher suites as a fallback
 #   * Then Use 3DES as fallback which is secure but slow
-#   * Finally use RC4 as a fallback which is problematic but needed for
-#     compatibility some times.
 #   * Disable NULL authentication, NULL encryption, and MD5 MACs for security
 #     reasons
 _DEFAULT_CIPHERS = (
     'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+HIGH:'
-    'DH+HIGH:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+HIGH:RSA+3DES:ECDH+RC4:'
-    'DH+RC4:RSA+RC4:!aNULL:!eNULL:!MD5'
+    'DH+HIGH:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+HIGH:RSA+3DES:!aNULL:'
+    '!eNULL:!MD5'
 )
 
 # Restricted and more secure ciphers for the server side
diff -r 78145e6ffb40 -r c509e6f18d7d Misc/NEWS
--- a/Misc/NEWS	Wed Feb 18 08:56:33 2015 -0500
+++ b/Misc/NEWS	Thu Feb 19 17:57:08 2015 -0500
@@ -13,6 +13,8 @@
 Library
 -------
 
+- Issue #23481: Remove RC4 from the SSL module's default cipher list.
+
 - Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
   docstrings.