CAPEC Definitions / CAPEC-650
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a gateway to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
Extended Description
No Extended Description.
Mitigations
Make sure your web server is up-to-date with all patches to protect against known vulnerabilities.
Ensure that the file permissions in directories on the web server from which files can be execute is set to the least privilege settings, and that those directories contents is controlled by an allowlist.
Relationships with other CAPECs
CAPEC-17: Using Malicious Files
Prerequisites
The web server is susceptible to one of the various web application exploits that allows for uploading a shell file.
