this vulnerability affect user that even not allowed to access via the web interface. First of all, the attacker needs to access the Login menu - demo site then he can see in this menu all the functionality of the application. If the attacker will try to click on one of the links, he will get an answer that he is not authorized because he needs to log in with credentials. after he performed log in to the system there are some functionalities that the specific user is not allowed to perform because he was configured with low privileges however all the attacker need to do in order to achieve his goals is to change the value of the prog step parameter from 0 to 1 or more and then the attacker could access to some of the functionality the web application that he couldnt perform it before the parameter changed.
The system’s authorization functionality does not prevent one user from gaining access to another user’s data or record by modifying the key value identifying the data.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Priority | Priority-software | * | 22.0 (excluding) |
Retrieval of a user record occurs in the system based on some key value that is under user control. The key would typically identify a user-related record stored in the system and would be used to lookup that record for presentation to the user. It is likely that an attacker would have to be an authenticated user in the system. However, the authorization process would not properly check the data access operation to ensure that the authenticated user performing the operation has sufficient entitlements to perform the requested data access, hence bypassing any other authorization checks present in the system. For example, attackers can look at places where user specific data is retrieved (e.g. search screens) and determine whether the key for the item being looked up is controllable externally. The key may be a hidden field in the HTML form field, might be passed as a URL parameter or as an unencrypted cookie variable, then in each of these cases it will be possible to tamper with the key value. One manifestation of this weakness is when a system uses sequential or otherwise easily-guessable session IDs that would allow one user to easily switch to another user’s session and read/modify their data.