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SQL injection - Tamper script
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# SQL injection
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A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
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## SQL injection using SQLmap
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```
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sqlmap --url="<url>" -p username --user-agent=SQLMAP --threads=10 --risk=3 --level=5 --eta --dbms=MySQL --os=Linux --banner --is-dba --users --passwords --current-user --dbs
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```
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## Entry point detection
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Detection of an SQL injection entry point
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transformed into U+0027 APOSTROPHE (')
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```
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## SQL injection using SQLmap
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Basic arguments for SQLmap
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```
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sqlmap --url="<url>" -p username --user-agent=SQLMAP --threads=10 --risk=3 --level=5 --eta --dbms=MySQL --os=Linux --banner --is-dba --users --passwords --current-user --dbs
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```
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Custom injection in UserAgent/Header/Referer/Cookie
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```
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python sqlmap.py -u "http://example.com" --data "username=admin&password=pass" --headers="x-forwarded-for:127.0.0.1*"
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```
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General tamper option and tamper's list
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```
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tamper=name_of_the_tamper
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```
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| Tamper | Description |
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| --- | --- |
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|apostrophemask.py | Replaces apostrophe character with its UTF-8 full width counterpart |
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|apostrophenullencode.py | Replaces apostrophe character with its illegal double unicode counterpart|
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|appendnullbyte.py | Appends encoded NULL byte character at the end of payload |
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|base64encode.py | Base64 all characters in a given payload |
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|between.py | Replaces greater than operator ('>') with 'NOT BETWEEN 0 AND #' |
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|bluecoat.py | Replaces space character after SQL statement with a valid random blank character.Afterwards replace character = with LIKE operator |
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|chardoubleencode.py | Double url-encodes all characters in a given payload (not processing already encoded) |
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|commalesslimit.py | Replaces instances like 'LIMIT M, N' with 'LIMIT N OFFSET M'|
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|commalessmid.py | Replaces instances like 'MID(A, B, C)' with 'MID(A FROM B FOR C)'|
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|concat2concatws.py | Replaces instances like 'CONCAT(A, B)' with 'CONCAT_WS(MID(CHAR(0), 0, 0), A, B)'|
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|charencode.py | Url-encodes all characters in a given payload (not processing already encoded) |
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|charunicodeencode.py | Unicode-url-encodes non-encoded characters in a given payload (not processing already encoded) |
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|equaltolike.py | Replaces all occurances of operator equal ('=') with operator 'LIKE' |
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|escapequotes.py | Slash escape quotes (' and ") |
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|greatest.py | Replaces greater than operator ('>') with 'GREATEST' counterpart |
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|halfversionedmorekeywords.py | Adds versioned MySQL comment before each keyword |
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|ifnull2ifisnull.py | Replaces instances like 'IFNULL(A, B)' with 'IF(ISNULL(A), B, A)'|
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|modsecurityversioned.py | Embraces complete query with versioned comment |
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|modsecurityzeroversioned.py | Embraces complete query with zero-versioned comment |
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|multiplespaces.py | Adds multiple spaces around SQL keywords |
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|nonrecursivereplacement.py | Replaces predefined SQL keywords with representations suitable for replacement (e.g. .replace("SELECT", "")) filters|
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|percentage.py | Adds a percentage sign ('%') infront of each character |
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|overlongutf8.py | Converts all characters in a given payload (not processing already encoded) |
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|randomcase.py | Replaces each keyword character with random case value |
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|randomcomments.py | Add random comments to SQL keywords|
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|securesphere.py | Appends special crafted string|
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|sp_password.py | Appends 'sp_password' to the end of the payload for automatic obfuscation from DBMS logs |
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|space2comment.py | Replaces space character (' ') with comments |
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|space2dash.py | Replaces space character (' ') with a dash comment ('--') followed by a random string and a new line ('\n') |
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|space2hash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
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|space2morehash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
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|space2mssqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
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|space2mssqlhash.py | Replaces space character (' ') with a pound character ('#') followed by a new line ('\n') |
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|space2mysqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
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|space2mysqldash.py | Replaces space character (' ') with a dash comment ('--') followed by a new line ('\n') |
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|space2plus.py | Replaces space character (' ') with plus ('+') |
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|space2randomblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
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|symboliclogical.py | Replaces AND and OR logical operators with their symbolic counterparts (&& and ||) |
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|unionalltounion.py | Replaces UNION ALL SELECT with UNION SELECT |
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|unmagicquotes.py | Replaces quote character (') with a multi-byte combo %bf%27 together with generic comment at the end (to make it work) |
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|uppercase.py | Replaces each keyword character with upper case value 'INSERT'|
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|varnish.py | Append a HTTP header 'X-originating-IP' |
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|versionedkeywords.py | Encloses each non-function keyword with versioned MySQL comment |
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|versionedmorekeywords.py | Encloses each keyword with versioned MySQL comment |
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|xforwardedfor.py | Append a fake HTTP header 'X-Forwarded-For'|
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## Authentication bypass
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```
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'-'
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- [Pentestmonkey's Informix SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/informix-sql-injection-cheat-sheet)
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- [SQLite3 Injection Cheat sheet] (https://sites.google.com/site/0x7674/home/sqlite3injectioncheatsheet)
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- [Ruby on Rails (Active Record) SQL Injection Guide] (http://rails-sqli.org/)
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- [ForkBombers SQLMap Tamper Scripts Update](http://www.forkbombers.com/2016/07/sqlmap-tamper-scripts-update.html)
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