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Implementation for an Issue #340
This commit is contained in:
Miroslav Stampar
parent
3f84cefc77
commit
7a1d484115
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@ -15,10 +15,12 @@ from lib.core.common import isNumber
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from lib.core.common import isTechniqueAvailable
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from lib.core.common import randomInt
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from lib.core.common import randomStr
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from lib.core.common import safeSQLIdentificatorNaming
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from lib.core.common import singleTimeWarnMessage
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from lib.core.data import conf
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from lib.core.data import kb
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from lib.core.data import queries
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from lib.core.dicts import DUMP_DATA_PREPROCESS
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from lib.core.dicts import FROM_DUMMY_TABLE
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from lib.core.enums import DBMS
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from lib.core.enums import PAYLOAD
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@ -463,6 +465,25 @@ class Agent(object):
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rootQuery = queries[Backend.getIdentifiedDbms()]
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return rootQuery.concatenate.query % (first, second)
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def preprocessField(self, table, field):
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"""
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Does a field preprocessing (if needed) based on it's type (e.g. image to text)
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Note: used primarily in dumping of custom tables
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"""
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retVal = field
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if conf.db in table:
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table = table.split(conf.db)[-1].strip('.')
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try:
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columns = kb.data.cachedColumns[safeSQLIdentificatorNaming(conf.db)][safeSQLIdentificatorNaming(table, True)]
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for name, type_ in columns.items():
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if type_ and type_.upper() in DUMP_DATA_PREPROCESS.get(Backend.getDbms(), {}) and name == field:
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retVal = DUMP_DATA_PREPROCESS[Backend.getDbms()][type_.upper()] % name
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break
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except KeyError:
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pass
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return retVal
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def concatQuery(self, query, unpack=True):
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"""
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Take in input a query string and return its processed nulled,
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@ -205,3 +205,8 @@ POST_HINT_CONTENT_TYPES = {
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DEPRECATED_HINTS = {
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"--replicate": "use '--dump-format=SQLITE' instead",
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}
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DUMP_DATA_PREPROCESS = {
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DBMS.ORACLE: {"XMLTYPE": "(%s).getStringVal()"}, # Reference: https://www.tibcommunity.com/docs/DOC-3643
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DBMS.MSSQL: {"IMAGE": "CONVERT(VARBINARY(MAX),%s)"},
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}
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@ -6,6 +6,7 @@ See the file 'doc/COPYING' for copying permission
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"""
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from extra.safe2bin.safe2bin import safechardecode
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from lib.core.agent import agent
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from lib.core.bigarray import BigArray
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from lib.core.common import Backend
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from lib.core.common import isNoneValue
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@ -101,9 +102,9 @@ def pivotDumpTable(table, colList, count=None, blind=True):
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for column in colList:
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def _(pivotValue):
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if column == colList[0]:
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query = dumpNode.query.replace("'%s'", "%s") % (column, table, column, unescaper.unescape(pivotValue, False))
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query = dumpNode.query.replace("'%s'", "%s") % (agent.preprocessField(table, column), table, agent.preprocessField(table, column), unescaper.unescape(pivotValue, False))
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else:
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query = dumpNode.query2.replace("'%s'", "%s") % (column, table, colList[0], unescaper.unescape(pivotValue, False))
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query = dumpNode.query2.replace("'%s'", "%s") % (agent.preprocessField(table, column), table, agent.preprocessField(table, colList[0]), unescaper.unescape(pivotValue, False))
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return unArrayizeValue(inject.getValue(query, blind=blind, time=blind, union=not blind, error=not blind))
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@ -5,6 +5,9 @@ Copyright (c) 2006-2012 sqlmap developers (http://sqlmap.org/)
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See the file 'doc/COPYING' for copying permission
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"""
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import re
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from lib.core.agent import agent
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from lib.core.bigarray import BigArray
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from lib.core.common import Backend
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from lib.core.common import clearConsoleLine
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@ -117,17 +120,23 @@ class Entries:
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continue
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colList = sorted(filter(None, kb.data.cachedColumns[safeSQLIdentificatorNaming(conf.db)][safeSQLIdentificatorNaming(tbl, True)].keys()))
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colString = ", ".join(column for column in colList)
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columns = kb.data.cachedColumns[safeSQLIdentificatorNaming(conf.db)][safeSQLIdentificatorNaming(tbl, True)]
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colList = sorted(filter(None, columns.keys()))
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colNames = colString = ", ".join(column for column in colList)
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rootQuery = queries[Backend.getIdentifiedDbms()].dump_table
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infoMsg = "fetching entries"
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if conf.col:
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infoMsg += " of column(s) '%s'" % colString
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infoMsg += " of column(s) '%s'" % colNames
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infoMsg += " for table '%s'" % unsafeSQLIdentificatorNaming(tbl)
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infoMsg += " in database '%s'" % unsafeSQLIdentificatorNaming(conf.db)
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logger.info(infoMsg)
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for column in colList:
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_ = agent.preprocessField(tbl, column)
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if _ != column:
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colString = re.sub(r"\b%s\b" % column, _, colString)
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entriesCount = 0
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if any(isTechniqueAvailable(_) for _ in (PAYLOAD.TECHNIQUE.UNION, PAYLOAD.TECHNIQUE.ERROR, PAYLOAD.TECHNIQUE.QUERY)) or conf.direct:
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@ -190,7 +199,7 @@ class Entries:
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if not kb.data.dumpedTable and isInferenceAvailable() and not conf.direct:
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infoMsg = "fetching number of "
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if conf.col:
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infoMsg += "column(s) '%s' " % colString
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infoMsg += "column(s) '%s' " % colNames
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infoMsg += "entries for table '%s' " % unsafeSQLIdentificatorNaming(tbl)
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infoMsg += "in database '%s'" % unsafeSQLIdentificatorNaming(conf.db)
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logger.info(infoMsg)
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@ -224,7 +233,7 @@ class Entries:
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elif not isNumPosStrValue(count):
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warnMsg = "unable to retrieve the number of "
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if conf.col:
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warnMsg += "column(s) '%s' " % colString
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warnMsg += "column(s) '%s' " % colNames
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warnMsg += "entries for table '%s' " % unsafeSQLIdentificatorNaming(tbl)
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warnMsg += "in database '%s'" % unsafeSQLIdentificatorNaming(conf.db)
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logger.warn(warnMsg)
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@ -269,16 +278,16 @@ class Entries:
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entries[column] = BigArray()
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if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL):
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query = rootQuery.blind.query % (column, conf.db, conf.tbl, sorted(colList, key=len)[0], index)
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query = rootQuery.blind.query % (agent.preprocessField(tbl, column), conf.db, conf.tbl, sorted(colList, key=len)[0], index)
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elif Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.DB2):
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query = rootQuery.blind.query % (column, column,
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query = rootQuery.blind.query % (agent.preprocessField(tbl, column),
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tbl.upper() if not conf.db else ("%s.%s" % (conf.db.upper(), tbl.upper())),
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index)
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elif Backend.isDbms(DBMS.SQLITE):
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query = rootQuery.blind.query % (column, tbl, index)
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query = rootQuery.blind.query % (agent.preprocessField(tbl, column), tbl, index)
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elif Backend.isDbms(DBMS.FIREBIRD):
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query = rootQuery.blind.query % (index, column, tbl)
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query = rootQuery.blind.query % (index, agent.preprocessField(tbl, column), tbl)
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value = NULL if column in emptyColumns else inject.getValue(query, union=False, error=False, dump=True)
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value = '' if value is None else value
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@ -302,7 +311,7 @@ class Entries:
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if len(kb.data.dumpedTable) == 0 or (entriesCount == 0 and kb.permissionFlag):
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warnMsg = "unable to retrieve the entries "
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if conf.col:
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warnMsg += "of columns '%s' " % colString
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warnMsg += "of columns '%s' " % colNames
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warnMsg += "for table '%s' " % unsafeSQLIdentificatorNaming(tbl)
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warnMsg += "in database '%s'%s" % (unsafeSQLIdentificatorNaming(conf.db), " (permission denied)" if kb.permissionFlag else "")
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logger.warn(warnMsg)
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@ -274,7 +274,7 @@
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</columns>
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<dump_table>
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<inband query="SELECT %s FROM %s"/>
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<blind query="SELECT %s FROM (SELECT %s,ROWNUM AS LIMIT FROM %s) WHERE LIMIT=%d" count="SELECT COUNT(*) FROM %s"/>
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<blind query="SELECT ENTRY_VALUE FROM (SELECT %s AS ENTRY_VALUE,ROWNUM AS LIMIT FROM %s) WHERE LIMIT=%d" count="SELECT COUNT(*) FROM %s"/>
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</dump_table>
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<!-- NOTE: in Oracle schema names are the counterpart to database names on other DBMSes -->
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<search_db>
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@ -608,7 +608,7 @@
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</columns>
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<dump_table>
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<inband query="SELECT %s FROM %s"/>
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<blind query="SELECT %s FROM (SELECT ROW_NUMBER() OVER () AS LIMIT,%s FROM %s) AS foobar WHERE LIMIT=%d" count="SELECT COUNT(*) FROM %s"/>
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<blind query="SELECT ENTRY_VALUE FROM (SELECT ROW_NUMBER() OVER () AS LIMIT,%s AS ENTRY_VALUE FROM %s) AS foobar WHERE LIMIT=%d" count="SELECT COUNT(*) FROM %s"/>
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</dump_table>
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<search_db>
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<inband query="SELECT schemaname FROM syscat.schemata WHERE " condition="schemaname"/>
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