Merge pull request #10 from zblurx/dpapi

Store domain backupkey and dpapi secrets in cmedb

cme/protocols/smb.py

@@ -1180,6 +1180,7 @@ class smb(connection):
         if self.args.pvk is not None:
             try:
                 self.pvkbytes = open(self.args.pvk, 'rb').read()
+                self.logger.success("Loading domain backupkey from {}".format(self.args.pvk))
             except Exception as e:
                 logging.error(str(e))
 
@@ -1191,6 +1192,15 @@ class smb(connection):
                 self.logger.error(str(e))
 
         if self.pvkbytes is None and self.no_da == None and self.args.local_auth == False:
+            try:
+                results = self.db.get_domain_backupkey(self.domain)
+            except:
+                self.logger.error("Your version of CMEDB is not up to date, run cmedb and create a new workspace: 'workspace create dpapi' then re-run the dpapi option")
+                return False
+            if len(results) > 0:
+                self.logger.success("Loading domain backupkey from cmedb...")
+                self.pvkbytes = results[0][2]
+            else: 
                 try:
                     dc_target = Target.create(
                         domain      = self.domain,
@@ -1211,6 +1221,7 @@ class smb(connection):
                         backupkey_triage = BackupkeyTriage(target=dc_target, conn=dc_conn)
                         backupkey = backupkey_triage.triage_backupkey()
                         self.pvkbytes = backupkey.backupkey_v2
+                        self.db.add_domain_backupkey(self.domain, self.pvkbytes)
                     else:
                         self.no_da = False
                 except Exception as e:
@@ -1268,8 +1279,10 @@ class smb(connection):
             self.logger.debug("Error while looting credentials: {}".format(e))
         for credential in credentials:
             self.logger.highlight("[%s][CREDENTIAL] %s - %s:%s" % (credential.winuser, credential.target, credential.username, credential.password))
+            self.db.add_dpapi_secrets(target.address, 'CREDENTIAL', credential.winuser, credential.username, credential.password, credential.target)
         for credential in system_credentials:
             self.logger.highlight("[SYSTEM][CREDENTIAL] %s - %s:%s" % (credential.target, credential.username, credential.password))
+            self.db.add_dpapi_secrets(target.address, 'CREDENTIAL', 'SYSTEM', credential.username, credential.password, credential.target)
 
         try:
             # Collect Chrome Based Browser stored secrets
@@ -1280,6 +1293,8 @@ class smb(connection):
             self.logger.debug("Error while looting browsers: {}".format(e))
         for credential in browser_credentials:
             self.logger.highlight("[%s][%s] %s %s:%s" % (credential.winuser, credential.browser.upper(), credential.url+' -' if credential.url!= '' else '-', credential.username, credential.password))
+            self.db.add_dpapi_secrets(target.address, credential.browser.upper(), credential.winuser, credential.username, credential.password, credential.url)
+        
         if dump_cookies:
             self.logger.info("Start Dumping Cookies")
             for cookie in cookies:
@@ -1295,7 +1310,7 @@ class smb(connection):
         for vault in vaults:
             if vault.type == 'Internet Explorer':
                 self.logger.highlight("[%s][IEX] %s - %s:%s" % (vault.winuser, vault.resource+' -' if vault.resource!= '' else '-', vault.username, vault.password))
-        
+                self.db.add_dpapi_secrets(target.address, 'IEX', vault.winuser, vault.username, vault.password, vault.resource)
 
         try:
             # Collect Firefox stored secrets
@@ -1305,7 +1320,7 @@ class smb(connection):
             self.logger.debug("Error while looting firefox: {}".format(e))
         for credential in firefox_credentials:
             self.logger.highlight("[%s][FIREFOX] %s %s:%s" % (credential.winuser, credential.url+' -' if credential.url!= '' else '-', credential.username, credential.password))
-        
+            self.db.add_dpapi_secrets(target.address, 'FIREFOX', credential.winuser, credential.username, credential.password, credential.url)
 
     @requires_admin
     def lsa(self):

cme/protocols/smb/database.py

@@ -76,6 +76,24 @@ class database:
             UNIQUE(computerid, userid, name)
         )''')
 
+        db_conn.execute('''CREATE TABLE "dpapi_secrets" (
+            "id" integer PRIMARY KEY,
+            "computer" text,
+            "dpapi_type" text,
+            "windows_user" text,
+            "username" text,
+            "password" text,
+            "url" text,
+            UNIQUE(computer, dpapi_type, windows_user, username, password, url)
+        )''')
+
+        db_conn.execute('''CREATE TABLE "dpapi_backupkey" (
+            "id" integer PRIMARY KEY,
+            "domain" text,
+            "pvk" text,
+            UNIQUE(domain)
+        )''')
+
         #db_conn.execute('''CREATE TABLE "ntds_dumps" (
         #    "id" integer PRIMARY KEY,
         #    "computerid", integer,
@@ -537,3 +555,89 @@ class database:
         cur.close()
         logging.debug('get_groups(filterTerm={}, groupName={}, groupDomain={}) => {}'.format(filterTerm, groupName, groupDomain, results))
         return results
+    
+    def add_domain_backupkey(self, domain:str, pvk:bytes):
+        """
+        Add domain backupkey
+        :domain is the domain fqdn
+        :pvk is the domain backupkey
+        """
+        cur = self.conn.cursor()
+
+        cur.execute("SELECT * FROM dpapi_backupkey WHERE LOWER(domain)=LOWER(?)", [domain])
+        results = cur.fetchall()
+
+        if not len(results):
+            import base64
+            pvk_encoded = base64.b64encode(pvk)
+            cur.execute("INSERT INTO dpapi_backupkey (domain, pvk) VALUES (?,?)", [domain, pvk_encoded])
+
+        cur.close()
+
+        logging.debug('add_domain_backupkey(domain={}, pvk={}) => {}'.format(domain, pvk_encoded, cur.lastrowid))
+
+    def get_domain_backupkey(self, domain:str = None):
+        """
+        Get domain backupkey
+        :domain is the domain fqdn
+        """
+        cur = self.conn.cursor()
+
+        if domain is not None:
+            cur.execute("SELECT * FROM dpapi_backupkey WHERE LOWER(domain)=LOWER(?)", [domain])
+        else:
+            cur.execute("SELECT * FROM dpapi_backupkey", [domain])
+        results = cur.fetchall()
+        cur.close()
+        logging.debug('get_domain_backupkey(domain={}) => {}'.format(domain, results))
+        if len(results) >0:
+            import base64
+            results = [(idkey, domain, base64.b64decode(pvk)) for idkey, domain, pvk in results]
+        return results
+    
+    def is_dpapi_secret_valid(self, dpapiSecretID):
+        """
+        Check if this group ID is valid.
+        :dpapiSecretID is a primary id
+        """
+        cur = self.conn.cursor()
+        cur.execute('SELECT * FROM dpapi_secrets WHERE id=? LIMIT 1', [dpapiSecretID])
+        results = cur.fetchall()
+        cur.close()
+
+        logging.debug('is_dpapi_secret_valid(groupID={}) => {}'.format(dpapiSecretID, True if len(results) else False))
+        return len(results) > 0
+
+    def add_dpapi_secrets(self, computer:str, dpapi_type:str, windows_user:str, username:str, password:str, url:str=''):
+        """
+        Add dpapi secrets to cmedb
+        """
+        cur = self.conn.cursor()
+        cur.execute("INSERT OR IGNORE INTO dpapi_secrets (computer, dpapi_type, windows_user, username, password, url) VALUES (?,?,?,?,?,?)", [computer, dpapi_type, windows_user, username, password, url])
+        cur.close()
+
+        logging.debug('add_dpapi_secrets(computer={}, dpapi_type={}, windows_user={}, username={}, password={}, url={}) => {}'.format(computer, dpapi_type, windows_user, username, password, url, cur.lastrowid))
+
+    def get_dpapi_secrets(self, filterTerm=None, computer:str=None, dpapi_type:str=None, windows_user:str=None, username:str=None, url:str=None):
+        """
+        Get dpapi secrets from cmedb
+        """
+        cur = self.conn.cursor()
+        if self.is_dpapi_secret_valid(filterTerm):
+            cur.execute("SELECT * FROM dpapi_secrets WHERE id=? LIMIT 1", [filterTerm])
+        elif computer:
+            cur.execute("SELECT * FROM dpapi_secrets WHERE computer=? LIMIT 1", [computer])
+        elif dpapi_type:
+            cur.execute('SELECT * FROM dpapi_secrets WHERE LOWER(dpapi_type)=LOWER(?)', [dpapi_type])
+        elif windows_user:
+            cur.execute('SELECT * FROM dpapi_secrets WHERE LOWER(windows_user) LIKE LOWER(?)', [windows_user])
+        elif username:
+            cur.execute('SELECT * FROM dpapi_secrets WHERE LOWER(windows_user) LIKE LOWER(?)', [username])
+        elif url:
+            cur.execute('SELECT * FROM dpapi_secrets WHERE LOWER(url)=LOWER(?)', [url])
+        else:
+            cur.execute("SELECT * FROM dpapi_secrets")
+        results = cur.fetchall()
+        cur.close()
+        logging.debug('get_dpapi_secrets(filterTerm={}, computer={}, dpapi_type={}, windows_user={}, username={}, url={}) => {}'.format(filterTerm, computer, dpapi_type, windows_user, username, url, results))
+        return results

cme/protocols/smb/db_navigator.py

@@ -276,6 +276,52 @@ class navigator(DatabaseNavigator):
 
                 self.print_table(data, title='Credential(s) with Admin Access')
 
+    def do_dpapi(self, line):
+        filterTerm = line.strip()
+
+        if filterTerm == "":
+            secrets = self.db.get_dpapi_secrets()
+            secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+            self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "browser":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="MSEDGE")
+            secrets += self.db.get_dpapi_secrets(dpapi_type="GOOGLE CHROME")
+            secrets += self.db.get_dpapi_secrets(dpapi_type="IEX")
+            secrets += self.db.get_dpapi_secrets(dpapi_type="FIREFOX")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "chrome":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="GOOGLE CHROME")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "msedge":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="MSEDGE")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "credentials":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="CREDENTIAL")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "iex":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="IEX")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        elif filterTerm.split()[0].lower() == "firefox":
+            secrets = self.db.get_dpapi_secrets(dpapi_type="FIREFOX")
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+        else:
+            secrets = self.db.get_dpapi_secrets(filterTerm=filterTerm)
+            if len(secrets) > 0:
+                secrets.insert(0,["ID","Host", "DPAPI Type", "Windows User", "Username", "Password", "URL"])
+                self.print_table(secrets, title='DPAPI Secrets')
+
     def do_creds(self, line):
 
         filterTerm = line.strip()

pyproject.toml

@@ -43,7 +43,7 @@ aioconsole = "^0.3.3"
 pywerview = "^0.3.3"
 minikerberos = "0.3.5"
 aardwolf = "0.2.5"
-dploot = "^2.1.14"
+dploot = "^2.1.16"
 bloodhound = "^1.6.1"
 asyauth = "^0.0.12"
 masky = "^0.2.0"