sqlmap/plugins/dbms/mssqlserver/enumeration.py

366 lines
13 KiB
Python

#!/usr/bin/env python
"""
$Id$
Copyright (c) 2006-2011 sqlmap developers (http://sqlmap.sourceforge.net/)
See the file 'doc/COPYING' for copying permission
"""
from lib.core.agent import agent
from lib.core.common import arrayizeValue
from lib.core.common import Backend
from lib.core.common import getRange
from lib.core.common import isNoneValue
from lib.core.common import isNumPosStrValue
from lib.core.common import isTechniqueAvailable
from lib.core.common import safeSQLIdentificatorNaming
from lib.core.common import unsafeSQLIdentificatorNaming
from lib.core.data import conf
from lib.core.data import kb
from lib.core.data import logger
from lib.core.data import queries
from lib.core.enums import EXPECTED
from lib.core.enums import PAYLOAD
from lib.core.exception import sqlmapNoneDataException
from lib.request import inject
from plugins.generic.enumeration import Enumeration as GenericEnumeration
class Enumeration(GenericEnumeration):
def __init__(self):
GenericEnumeration.__init__(self)
def getPrivileges(self, *args):
warnMsg = "on Microsoft SQL Server it is not possible to fetch "
warnMsg += "database users privileges, sqlmap will check whether "
warnMsg += "or not the database users are database administrators"
logger.warn(warnMsg)
users = []
areAdmins = set()
if conf.user:
users = [ conf.user ]
elif not len(kb.data.cachedUsers):
users = self.getUsers()
else:
users = kb.data.cachedUsers
for user in users:
if user is None:
continue
isDba = self.isDba(user)
if isDba is True:
areAdmins.add(user)
kb.data.cachedUsersPrivileges[user] = None
return ( kb.data.cachedUsersPrivileges, areAdmins )
def getTables(self):
if len(kb.data.cachedTables) > 0:
return kb.data.cachedTables
self.forceDbmsEnum()
if conf.db == "CD":
conf.db = self.getCurrentDb()
if conf.db:
dbs = conf.db.split(",")
else:
dbs = self.getDbs()
for db in dbs:
dbs[dbs.index(db)] = safeSQLIdentificatorNaming(db)
infoMsg = "fetching tables for database"
infoMsg += "%s: %s" % ("s" if len(dbs) > 1 else "", ", ".join(db for db in dbs))
logger.info(infoMsg)
rootQuery = queries[Backend.getIdentifiedDbms()].tables
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION) or isTechniqueAvailable(PAYLOAD.TECHNIQUE.ERROR) or conf.direct:
for db in dbs:
if conf.excludeSysDbs and db in self.excludeDbsList:
infoMsg = "skipping system database '%s'" % db
logger.info(infoMsg)
continue
query = rootQuery.inband.query % db
value = inject.getValue(query, blind=False)
if not isNoneValue(value):
kb.data.cachedTables[db] = arrayizeValue(value)
if not kb.data.cachedTables and not conf.direct:
for db in dbs:
if conf.excludeSysDbs and db in self.excludeDbsList:
infoMsg = "skipping system database '%s'" % db
logger.info(infoMsg)
continue
infoMsg = "fetching number of tables for "
infoMsg += "database '%s'" % db
logger.info(infoMsg)
query = rootQuery.blind.count % db
count = inject.getValue(query, inband=False, error=False, charsetType=2)
if not isNumPosStrValue(count):
warnMsg = "unable to retrieve the number of "
warnMsg += "tables for database '%s'" % db
logger.warn(warnMsg)
continue
tables = []
for index in range(int(count)):
query = rootQuery.blind.query % (db, index, db)
table = inject.getValue(query, inband=False, error=False)
kb.hintValue = table
table = safeSQLIdentificatorNaming(table, True)
tables.append(table)
if tables:
kb.data.cachedTables[db] = tables
else:
warnMsg = "unable to retrieve the tables "
warnMsg += "for database '%s'" % db
logger.warn(warnMsg)
if not kb.data.cachedTables:
errMsg = "unable to retrieve the tables for any database"
raise sqlmapNoneDataException(errMsg)
return kb.data.cachedTables
def searchTable(self):
rootQuery = queries[Backend.getIdentifiedDbms()].search_table
foundTbls = {}
tblList = conf.tbl.split(",")
tblCond = rootQuery.inband.condition
dbCond = rootQuery.inband.condition2
tblConsider, tblCondParam = self.likeOrExact("table")
if not len(kb.data.cachedDbs):
enumDbs = self.getDbs()
else:
enumDbs = kb.data.cachedDbs
for db in enumDbs:
if isinstance(db, list):
db = db[0]
db = safeSQLIdentificatorNaming(db)
foundTbls[db] = []
for tbl in tblList:
tbl = safeSQLIdentificatorNaming(tbl, True)
infoMsg = "searching table"
if tblConsider == "1":
infoMsg += "s like"
infoMsg += " '%s'" % unsafeSQLIdentificatorNaming(tbl)
logger.info(infoMsg)
tblQuery = "%s%s" % (tblCond, tblCondParam)
tblQuery = tblQuery % unsafeSQLIdentificatorNaming(tbl)
for db in foundTbls.keys():
db = safeSQLIdentificatorNaming(db)
if conf.excludeSysDbs and db in self.excludeDbsList:
infoMsg = "skipping system database '%s'" % db
logger.info(infoMsg)
continue
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION) or isTechniqueAvailable(PAYLOAD.TECHNIQUE.ERROR) or conf.direct:
query = rootQuery.inband.query % db
query += tblQuery
values = inject.getValue(query, blind=False)
if not isNoneValue(values):
if isinstance(values, basestring):
values = [ values ]
for foundTbl in values:
if foundTbl is None:
continue
foundTbls[db].append(foundTbl)
else:
infoMsg = "fetching number of table"
if tblConsider == "1":
infoMsg += "s like"
infoMsg += " '%s' in database '%s'" % (unsafeSQLIdentificatorNaming(tbl), unsafeSQLIdentificatorNaming(db))
logger.info(infoMsg)
query = rootQuery.blind.count2
query = query % db
query += " AND %s" % tblQuery
count = inject.getValue(query, inband=False, error=False, expected=EXPECTED.INT, charsetType=2)
if not isNumPosStrValue(count):
warnMsg = "no table"
if tblConsider == "1":
warnMsg += "s like"
warnMsg += " '%s' " % unsafeSQLIdentificatorNaming(tbl)
warnMsg += "in database '%s'" % unsafeSQLIdentificatorNaming(db)
logger.warn(warnMsg)
continue
indexRange = getRange(count)
for index in indexRange:
query = rootQuery.blind.query2
query = query % db
query += " AND %s" % tblQuery
query = agent.limitQuery(index, query, tblCond)
tbl = inject.getValue(query, inband=False, error=False)
kb.hintValue = tbl
foundTbls[db].append(tbl)
for db, tbls in foundTbls.items():
if len(tbls) == 0:
foundTbls.pop(db)
return foundTbls
def searchColumn(self):
rootQuery = queries[Backend.getIdentifiedDbms()].search_column
foundCols = {}
dbs = {}
colList = conf.col.split(",")
colCond = rootQuery.inband.condition
colConsider, colCondParam = self.likeOrExact("column")
if not len(kb.data.cachedDbs):
enumDbs = self.getDbs()
else:
enumDbs = kb.data.cachedDbs
for db in enumDbs:
db = safeSQLIdentificatorNaming(db)
dbs[db] = {}
for column in colList:
column = safeSQLIdentificatorNaming(column)
infoMsg = "searching column"
if colConsider == "1":
infoMsg += "s like"
infoMsg += " '%s'" % unsafeSQLIdentificatorNaming(column)
logger.info(infoMsg)
foundCols[column] = {}
colQuery = "%s%s" % (colCond, colCondParam)
colQuery = colQuery % unsafeSQLIdentificatorNaming(column)
for db in dbs.keys():
db = safeSQLIdentificatorNaming(db)
if conf.excludeSysDbs and db in self.excludeDbsList:
infoMsg = "skipping system database '%s'" % db
logger.info(infoMsg)
continue
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION) or isTechniqueAvailable(PAYLOAD.TECHNIQUE.ERROR) or conf.direct:
query = rootQuery.inband.query % (db, db, db, db, db, db)
query += " AND %s" % colQuery.replace("[DB]", db)
values = inject.getValue(query, blind=False)
if not isNoneValue(values):
if isinstance(values, basestring):
values = [ values ]
for foundTbl in values:
foundTbl = safeSQLIdentificatorNaming(foundTbl, True)
if foundTbl is None:
continue
if foundTbl not in dbs[db]:
dbs[db][foundTbl] = {}
if colConsider == "1":
conf.db = db
conf.tbl = foundTbl
conf.col = column
self.getColumns(onlyColNames=True)
if kb.data.cachedColumns[db][foundTbl] != {None: None}:
dbs[db][foundTbl].update(kb.data.cachedColumns[db][foundTbl])
kb.data.cachedColumns = {}
else:
dbs[db][foundTbl][column] = None
if db in foundCols[column]:
foundCols[column][db].append(foundTbl)
else:
foundCols[column][db] = [ foundTbl ]
else:
foundCols[column][db] = []
infoMsg = "fetching number of tables containing column"
if colConsider == "1":
infoMsg += "s like"
infoMsg += " '%s' in database '%s'" % (column, db)
logger.info(infoMsg)
query = rootQuery.blind.count2
query = query % (db, db, db, db, db, db)
query += " AND %s" % colQuery.replace("[DB]", db)
count = inject.getValue(query, inband=False, error=False, expected=EXPECTED.INT, charsetType=2)
if not isNumPosStrValue(count):
warnMsg = "no tables contain column"
if colConsider == "1":
warnMsg += "s like"
warnMsg += " '%s' " % column
warnMsg += "in database '%s'" % db
logger.warn(warnMsg)
continue
indexRange = getRange(count)
for index in indexRange:
query = rootQuery.blind.query2
query = query % (db, db, db, db, db, db)
query += " AND %s" % colQuery.replace("[DB]", db)
query = agent.limitQuery(index, query, colCond.replace("[DB]", db))
tbl = inject.getValue(query, inband=False, error=False)
kb.hintValue = tbl
tbl = safeSQLIdentificatorNaming(tbl, True)
if tbl not in dbs[db]:
dbs[db][tbl] = {}
if colConsider == "1":
conf.db = db
conf.tbl = tbl
conf.col = column
self.getColumns(onlyColNames=True)
dbs[db][tbl].update(kb.data.cachedColumns[db][tbl])
kb.data.cachedColumns = {}
else:
dbs[db][tbl][column] = None
foundCols[column][db].append(tbl)
self.dumpFoundColumn(dbs, foundCols, colConsider)