Know every vulnerabilitybefore it knows you.
DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.
GHSA-cp65-5m9r-vc2c
No affected components available
A path traversal vulnerability accessible via MediaController's download_private_file method allows authenticated users to download any file on the web server Camaleon CMS is running on (depending on the file permissions).
In the download_private_file method:
def download_private_file
cama_uploader.enable_private_mode!
file = cama_uploader.fetch_file("private/#{params[:file]}")
send_file file, disposition: 'inline'
end
The file parameter is passed to the fetch_file method of the CamaleonCmsLocalUploader class (when files are uploaded locally):
def fetch_file(file_name)
raise ActionController::RoutingError, 'File not found' unless file_exists?(file_name)
file_name
end
If the file exists it's passed back to the download_private_file method where the file is sent to the user via send_file.
Proof of concept An authenticated user can download the /etc/passwd file by visiting an URL such as:
https://<camaleon-host>/admin/media/download_private_file?file=../../../../../../etc/passwd Impact This issue may lead to Information Disclosure.
Remediation Normalize file paths constructed from untrusted user input before using them and check that the resulting path is inside the targeted directory. Additionally, do not allow character sequences such as .. in untrusted input that is used to build paths.
See also:
CodeQL: Uncontrolled data used in path expression OWASP: Path Traversal
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
Browse More
Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.
Checkout DevGuard