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-rw-r--r--source3/auth/auth_winbind.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/source3/auth/auth_winbind.c b/source3/auth/auth_winbind.c
index d4ace2c919..2b5c84d276 100644
--- a/source3/auth/auth_winbind.c
+++ b/source3/auth/auth_winbind.c
@@ -62,9 +62,15 @@ static NTSTATUS check_winbind_security(const struct auth_context *auth_context,
}
/* Send off request */
-
params.account_name = user_info->client.account_name;
- params.domain_name = user_info->mapped.domain_name;
+ /*
+ * We need to send the domain name from the client to the DC. With
+ * NTLMv2 the domain name is part of the hashed second challenge,
+ * if we change the domain name, the DC will fail to verify the
+ * challenge cause we changed the domain name, this is like a
+ * man in the middle attack.
+ */
+ params.domain_name = user_info->client.domain_name;
params.workstation_name = user_info->workstation_name;
params.flags = 0;