Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. See the referenced GitHub security advisory for details.

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files. This can be abused for Remote Code Execution by writing to a PHP file in the web directory. (Also, it can be used in conjunction with the sudo rule for the www-data user to escalate privileges to root.) The code error is in gravity_DownloadBlocklistFromUrl in gravity.sh.

Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. A vulnerability in versions prior to 5.18.3 allows an authenticated user to make internal requests to the server via the `gravity_DownloadBlocklistFromUrl()` function. Depending on some circumstances, the vulnerability could lead to remote command execution. Version 5.18.3 contains a patch for this issue.

The Pi-hole is a DNS sinkhole that protects your devices from unwanted content without installing any client-side software. A vulnerability has been discovered in Pihole that allows an authenticated user on the platform to read internal server files arbitrarily, and because the application runs from behind, reading files is done as a privileged user.If the URL that is in the list of "Adslists" begins with "file*" it is understood that it is updating from a local file, on the other hand if it does not begin with "file*" depending on the state of the response it does one thing or another. The problem resides in the update through local files. When updating from a file which contains non-domain lines, 5 of the non-domain lines are printed on the screen, so if you provide it with any file on the server which contains non-domain lines it will print them on the screen. This vulnerability is fixed by 5.18.

Pi-hole®'s Web interface (based off of AdminLTE) provides a central location to manage your Pi-hole. Versions 4.0 and above, prior to 5.18.3 are vulnerable to Insufficient Session Expiration. Improper use of admin WEBPASSWORD hash as "Remember me for 7 days" cookie value makes it possible for an attacker to "pass the hash" to login or reuse a theoretically expired "remember me" cookie. It also exposes the hash over the network and stores it unnecessarily in the browser. The cookie itself is set to expire after 7 days but its value will remain valid as long as the admin password doesn't change. If a cookie is leaked or compromised it could be used forever as long as the admin password is not changed. An attacker that obtained the password hash via an other attack vector (for example a path traversal vulnerability) could use it to login as the admin by setting the hash as the cookie value without the need to crack it to obtain the admin password (pass the hash). The hash is exposed over…

Pi-Hole is a network-wide ad blocking via your own Linux hardware, AdminLTE is a Pi-hole Dashboard for stats and more. In case of an attack, the threat actor will obtain the ability to perform an unauthorized query for blocked domains on `queryads` endpoint. In the case of application, this vulnerability exists because of a lack of validation in code on a root server path: `/admin/scripts/pi-hole/phpqueryads.php.` Potential threat actor(s) are able to perform an unauthorized query search in blocked domain lists. This could lead to the disclosure for any victims' personal blacklists.

AdminLTE is a Pi-hole Dashboard for stats and configuration. In affected versions inserting code like `<script>alert("XSS")</script>` in the field marked with "Domain to look for" and hitting <kbd>enter</kbd> (or clicking on any of the buttons) will execute the script. The user must be logged in to use this vulnerability. Usually only administrators have login access to pi-hole, minimizing the risks. Users are advised to upgrade. There are no known workarounds for this issue.

Pi-hole's Web interface (based on AdminLTE) provides a central location to manage one's Pi-hole and review the statistics generated by FTLDNS. Prior to version 5.8, cross-site scripting is possible when adding a client via the groups-clients management page. This issue was patched in version 5.8.

adminlte is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

adminlte is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')