A remote attacker could send a request to the server with content that could be injected by creating a crafted request. In order to be exploited, the user must have administrator rights on the site. Unauthorised file upload is a type of security risk where users are allowed to enter data into a form that is not intended to receive data, potentially exposing the user's data to unexpected parties. This type of risk can occur when users are not aware of the risks they are exposing their data to, or where they fail to protect the data they are handling. Unauthorised file upload can be prevented by following best practices for securing data.
A vulnerability exists in the way that EternalBlue is handled on this particular website. The vulnerability could allow an attacker to upload a file by injecting the content of the file into a crafted request. This can lead to arbitrary code execution, which would be difficult to detect as there would be no malicious payload within the uploaded files.
What is Unauthorised File Upload?
Unauthorised file upload is a security risk where the user enters data into a form that is not intended to receive data. Exposing user's data to unexpected parties, such as attackers or malicious hackers. This type of risk can occur when users are not aware of the risks they are exposing their data to, or where they fail to protect the data they are handling. Unauthorised file upload can be prevented by following best practices for securing data.
- Unauthorized File Upload: A type of security risk where users enter data into a form that's not designed for it, potentially exposing the user's data to unwanted parties
- Why is this type of risk important? The possible consequences could be huge if your contents have been compromised
How do you know if you are exposed to Unauthorised File Upload risk?
If you have a website and you allow users to upload content, then you are exposing your site to the risk of Unauthorised File Upload. At the time of writing, there are over 10 million websites that have third-party file upload capabilities. This can be used in a malicious manner to carry out attacks like Unauthorised File Upload.
Authentication and Access Control
Authentication is a process that confirms the identity of a user to a system. It confirms their identity by verifying their credentials, such as a password or PIN.
Access control is the process of restricting access to resources with the use of an access control list (ACL). In order to be successful, this must be done at an early stage in the development cycle, rather than after the system has already been deployed. This can also prevent unauthorised file upload as files are less likely to be uploaded if they cannot be accessed.
Published on: 11/18/2022 23:15:00 UTC
Last modified on: 11/21/2022 19:32:00 UTC