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-rw-r--r--source4/auth/ntlmssp/ntlmssp.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/source4/auth/ntlmssp/ntlmssp.c b/source4/auth/ntlmssp/ntlmssp.c
index 9452ac3e96..2b20608c82 100644
--- a/source4/auth/ntlmssp/ntlmssp.c
+++ b/source4/auth/ntlmssp/ntlmssp.c
@@ -279,11 +279,15 @@ void ntlmssp_handle_neg_flags(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
void ntlmssp_weaken_keys(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
{
+ /* Nothing to weaken. We certainly don't want to 'extend' the length... */
+ if (!gensec_ntlmssp_state->session_key.length < 8) {
+ return;
+ }
+
/* Key weakening not performed on the master key for NTLM2
and does not occour for NTLM1. Therefore we only need
to do this for the LM_KEY.
*/
-
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_128) {