An application error disclosure is an attack where an application cannot protect the user’s data. This attack will help an attacker to successfully access all the information about the application. The information includes information about the server environment, credentials of API keys and many more. These leakages can have disastrous effects on the server. The application error disclosure has following types:-
Banner Grabbing: Here, an attacker sends different requests to the server. These requests are attempts to leak information about the server. If the server configurations are not securely implemented, it will leak information like PHP version, ASP version and many more. Depending on these software’s versions, an attacker can exploit the server for sensitive information. eg: If a server has older PHP versions, it will most probably be vulnerable to remote command injection.
Source code Disclosure: This type of attack involves attacker having the access to the application’s source code. Using the source code, an attacker can perform white box testing on the application. This type of attack is also called white box testing because the attacker has read the code and is performing attacks on the basis of the code’s logical error. The source code might get leaked if the git repository of the application might have gone public. Inappropriate Handling of sensitive data: This attack can be exploited if the server doesn’t properly handle the username and password pair. An attacker can scan the web application for disclosed internal IPs, scripts etc.
The file name and path disclosure: This attack involves an attacker having access to file names or paths that expose the structure of the application. This attack is possible if there are loopholes in the backend, improper handling of data and man more.
An attacker can send a malicious database request to the server. If the application is vulnerable to application error disclosure attack, the response will be as follows.
The above output will help an attacker to understand the database of the application more precisely. The attacker will test the application with many other cases till he can successfully exploit the web application.
The impact include:-
Beagle recommends the following fixes:-