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Default to TLS connections only

Due to DROWN (CVE-2016-0800), SSLv2 must be disabled by default. This is the most straight-forward way to ensure new installations are not vulnerable. The upgrade use case is not addressed by this PR, though I posted information to the forum: http://www.vpnusers.com/viewtopic.php?f=7&t=5596

This patch is made available under Contribution Option 1, to allow PacketiX to be fixed the same way.
This commit is contained in:
Matt Lewandowsky 2016-03-02 08:02:07 -08:00
parent d3a1b26413
commit 15876de6fb

View File

@ -2577,6 +2577,9 @@ void SiLoadInitialConfiguration(SERVER *s)
return; return;
} }
// Default to TLS only; mitigates CVE-2016-0800
s->Cedar->AcceptOnlyTls = true;
// Auto saving interval related // Auto saving interval related
s->AutoSaveConfigSpan = SERVER_FILE_SAVE_INTERVAL_DEFAULT; s->AutoSaveConfigSpan = SERVER_FILE_SAVE_INTERVAL_DEFAULT;
s->BackupConfigOnlyWhenModified = true; s->BackupConfigOnlyWhenModified = true;
@ -2762,6 +2765,9 @@ void SiInitConfiguration(SERVER *s)
s->AutoSaveConfigSpan = SERVER_FILE_SAVE_INTERVAL_DEFAULT; s->AutoSaveConfigSpan = SERVER_FILE_SAVE_INTERVAL_DEFAULT;
s->BackupConfigOnlyWhenModified = true; s->BackupConfigOnlyWhenModified = true;
// Default to TLS only; mitigates CVE-2016-0800
s->Cedar->AcceptOnlyTls = true;
// IPsec server // IPsec server
if (s->Cedar->Bridge == false) if (s->Cedar->Bridge == false)
{ {
@ -6156,8 +6162,15 @@ void SiLoadServerCfg(SERVER *s, FOLDER *f)
SetGlobalServerFlag(GSF_DISABLE_SESSION_RECONNECT, CfgGetBool(f, "DisableSessionReconnect")); SetGlobalServerFlag(GSF_DISABLE_SESSION_RECONNECT, CfgGetBool(f, "DisableSessionReconnect"));
// AcceptOnlyTls // AcceptOnlyTls
if (CfgIsItem(f, "AcceptOnlyTls"))
{
c->AcceptOnlyTls = CfgGetBool(f, "AcceptOnlyTls"); c->AcceptOnlyTls = CfgGetBool(f, "AcceptOnlyTls");
} }
else
{
c->AcceptOnlyTls = true;
}
}
Unlock(c->lock); Unlock(c->lock);
#ifdef OS_UNIX #ifdef OS_UNIX