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s4:rpc_server: add some protection checks to dcesrv_auth_prepare_gensec()

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BUG: https://bugzilla.samba.org/show_bug.cgi?id=7113
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11892

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Stefan Metzmacher 2018-11-08 16:36:52 +01:00 committed by Jeremy Allison
parent 2640f60e88
commit 76976eab01
1 changed files with 12 additions and 0 deletions
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12
source4/rpc_server/dcesrv_auth.c
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@ -40,6 +40,18 @@ static bool dcesrv_auth_prepare_gensec(struct dcesrv_call_state *call)
bool want_header_signing = false;
NTSTATUS status;
if (auth->auth_invalid) {
return false;
}
if (auth->auth_finished) {
return false;
}
if (auth->gensec_security != NULL) {
return false;
}
switch (call->in_auth_info.auth_level) {
case DCERPC_AUTH_LEVEL_CONNECT:
case DCERPC_AUTH_LEVEL_CALL: