An attacker can upload arbitrary file via server side request in the application. An attacker can upload payloads to the Application and can control the system by using this Arbitrary file upload vulnerability.
Arbitrary file upload is most dangerous type of vulnerability. An attacker can upload malicious code to the system and can gain access to the system by using this Arbitrary file upload vulnerability.
An attacker can upload a file with a custom name and can start executing malicious code in the system by using this Arbitrary file upload vulnerability.
Arbitrary file upload is also used for spamming purpose. An attacker can upload a file to the system with a custom name and can start spamming the system by using this Arbitrary file upload vulnerability.
Arbitrary file upload is also used for phishing purpose. An attacker can upload a file to the system with a custom name and can start phishing the system by using this Arbitrary file upload vulnerability.
In some cases, Arbitrary file upload is also used for deleting the file.
How to trigger Arbitrary file upload vulnerability?
To trigger this vulnerability, an attacker must upload a file to the system with a custom name and then start executing malicious code in the system.
There are many ways in which an attacker can trigger this vulnerability. Some of them are uploading a file to the system with a custom name, uploading a file to the system with a custom name and deleting the file later on, uploading a file to the system with any other name and then starting executing malicious code in the system.
If an attacker uploads his own payload or any other payload to the system with any other name, it will be executed in the server side request. In some cases, when users do not have rights on which they need to trigger this vulnerability by themselves, they can use social engineering techniques like phishing attack or by impersonating somebody else (like staff of your company) and then asking for help from your employees for such purpose. For example, if you want to delete something from your account, instead of making an online delete request yourself you could ask one of your colleagues by using social engineering techniques. Your colleague might think that he is doing his job properly that he is able to delete anything from the company's network and might also provide you with some sensitive information like account credentials etc.
Overview of Arbitrary File Upload Vulnerability
Arbitrary file upload vulnerability is one of the most dangerous type of vulnerabilities. An attacker can upload malicious code to the system and can gain access to the system by using this Arbitrary file upload vulnerability.
Uploading a file with a custom name is also used for spamming purpose. An attacker can upload a file to the system with a custom name and start spamming the system by using this Arbitrary file upload vulnerability.
Uploading a file with a custom name is also used for phishing purpose. An attacker can upload a file to the system with a custom name and start phishing the system by using this Arbitrary file upload vulnerability.
What is Arbitrary File Upload?
Arbitrary file upload is a form of vulnerability in which an attacker can upload any type of file to the system without any restriction.
Arbitrary File Upload is also used for spamming purpose. An attacker can upload a file to the system with a custom name and can start spamming the system by using this Arbitrary file upload vulnerability.
Arbitrary File Upload is also used for phishing purpose. An attacker can upload a file to the system with a custom name and can start phishing the system by using this Arbitrary file upload vulnerability.
In some cases, Arbitrary File Upload is also used for deleting the file.
Timeline
Published on: 08/24/2022 17:15:00 UTC
Last modified on: 08/29/2022 02:40:00 UTC