Takes domain value from ccache file Default principal

nxc/connection.py

@@ -19,6 +19,7 @@ from nxc.protocols.ldap.laps import laps_search
 from nxc.helpers.pfx import pfx_auth
 
 from impacket.dcerpc.v5 import transport
+from impacket.krb5.ccache import CCache
 
 sem = BoundedSemaphore(1)
 global_failed_logins = 0
@@ -542,11 +543,13 @@ class connection:
             data.extend(parsed_data)
 
         if self.args.use_kcache:
+            ccache = CCache.parseFile()
             self.logger.debug("Trying to authenticate using Kerberos cache")
             with sem:
                 username = self.args.username[0] if len(self.args.username) else ""
                 password = self.args.password[0] if len(self.args.password) else ""
-                self.kerberos_login(self.domain, username, password, "", "", self.kdcHost, True)
+                domain = ccache[0]
+                self.kerberos_login(domain, username, password, "", "", self.kdcHost, True)
                 self.logger.info("Successfully authenticated using Kerberos cache")
                 return True