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-rw-r--r--source3/libsmb/ntlmssp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/source3/libsmb/ntlmssp.c b/source3/libsmb/ntlmssp.c
index 7ac20826de..2fdc938f49 100644
--- a/source3/libsmb/ntlmssp.c
+++ b/source3/libsmb/ntlmssp.c
@@ -617,7 +617,10 @@ static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM2 session key.\n"));
session_key = data_blob_null;
}
- } else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
+ } else if ((ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
+ /* Ensure we can never get here on NTLMv2 */
+ && (ntlmssp_state->nt_resp.length == 0 || ntlmssp_state->nt_resp.length == 24)) {
+
if (lm_session_key.data && lm_session_key.length >= 8) {
if (ntlmssp_state->lm_resp.data && ntlmssp_state->lm_resp.length == 24) {
session_key = data_blob_talloc(ntlmssp_state,