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authorjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2008-09-06 09:42:17 +0000
committerjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2008-09-06 09:42:17 +0000
commitb8fb090c167ff500a8d702f612a42914d4f0bb03 (patch)
tree982fe657f91c834bc17d1e81f04672323a2dda1a /multi.c
parentAdded --allow-pull-fqdn option which allows client to pull DNS names (diff)
downloadopenvpn-b8fb090c167ff500a8d702f612a42914d4f0bb03.tar.xz
2.1_rc8 and earlier did implicit shell expansion on script
arguments since all scripts were called by system(). The security hardening changes made to 2.1_rc9 no longer use system(), but rather use the safer execve or CreateProcess system calls. The security hardening also introduced a backward incompatibility with 2.1_rc8 and earlier in that script parameters were no longer shell-expanded, so for example: client-connect "docc CLIENT-CONNECT" would fail to work because execve would try to execute a script called "docc CLIENT-CONNECT" instead of "docc" with "CLIENT-CONNECT" as the first argument. This patch fixes the issue, bringing the script argument semantics back to pre 2.1_rc9 behavior in order to preserve backward compatibility while still using execve or CreateProcess to execute the script/executable. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3311 e7ae566f-a301-0410-adde-c780ea21d3b5
Diffstat (limited to 'multi.c')
-rw-r--r--multi.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/multi.c b/multi.c
index 5f70b6f..78cb5f3 100644
--- a/multi.c
+++ b/multi.c
@@ -103,7 +103,7 @@ learn_address_script (const struct multi_context *m,
{
struct argv argv = argv_new ();
setenv_str (es, "script_type", "learn-address");
- argv_printf (&argv, "%s %s %s",
+ argv_printf (&argv, "%sc %s %s",
m->top.options.learn_address_script,
op,
mroute_addr_print (addr, &gc));
@@ -473,7 +473,7 @@ multi_client_disconnect_script (struct multi_context *m,
{
struct argv argv = argv_new ();
setenv_str (mi->context.c2.es, "script_type", "client-disconnect");
- argv_printf (&argv, "%s", mi->context.options.client_disconnect_script);
+ argv_printf (&argv, "%sc", mi->context.options.client_disconnect_script);
openvpn_execve_check (&argv, mi->context.c2.es, S_SCRIPT, "client-disconnect command failed");
argv_reset (&argv);
}
@@ -1568,7 +1568,7 @@ multi_connection_established (struct multi_context *m, struct multi_instance *mi
delete_file (dc_file);
- argv_printf (&argv, "%s %s",
+ argv_printf (&argv, "%sc %s",
mi->context.options.client_connect_script,
dc_file);