Cockpit 2.13.5 and earlier is vulnerable to directory traversal via the Buckets component. This vulnerability allows authenticated attackers to write files to arbitrary locations within the uploads directory or overwrite assets with malicious versions.

A vulnerability was found in Cockpit up to 2.11.3. It has been rated as problematic. This issue affects some unknown processing of the file /system/users/save. The manipulation of the argument name/email leads to cross site scripting. The attack may be initiated remotely. Upgrading to version 2.11.4 is able to address this issue. The patch is named bdcd5e3bc651c0839c7eea807f3eb6af856dbc76. It is recommended to upgrade the affected component. The vendor was contacted early about this disclosure and acted very professional. A patch and new release was made available very quickly.

A flaw was found in the cockpit package. This flaw allows an authenticated user to kill any process when enabling the pamenv's userreadenv option, which leads to a denial of service (DoS) attack.

Cockpit 2.13.5 and earlier is affected by a misconfiguration within the Bucket component isFileTypeAllowed function where a specially crafted filename bypasses an extension filter. This allows an authenticated attacker to rename arbitrary files with the .php file extension enabling arbitrary code to be executed on the underlying server.

Cockpit (and its plugins) do not seem to protect itself against clickjacking : it is possible to render a page from a cockpit server via another website, inside an <iFrame> HTML entry.

This may be used by a malicious website in clickjacking, or similar, attacks.

To prevent this behavior, a X-Frame-Options header could be added to the responses.