# PRTG Network Monitor ## **Introduction** > * Network monitor software, prevalent in `internal networks` > * Typical ports: `80`, `443`, `8080` > * Default credentials: `prtgadmin:prtgadmin` *** ## **PRTG Network Monitor Authenticated RCE \[CVE-2018-9276]** * **Affected versions:** versions prior to `18.2.39` * **Resources:**\ and * **Description:** When creating a new notification, the Parameter field is passed directly into a PowerShell script without any type of input sanitization * **Steps to reproduce:** 1. `Login` → `Setup` → `Account Settings menu` → `Notifications` → `Add new notification` 2. Give the notification a name 3. Scroll down and tick the box next to `EXECUTE PROGRAM` 4. Under `Program File`, select `Demo exe notification - outfile.ps1` from the drop-down. 5. In the `parameter field`, enter a command. 6. Example - add a new local admin user: 7. `test.txt;net user prtgadm1 Pwn3d_by_PRTG! /add;net localgroup administrators prtgadm1 /add` 8. After clicking `Save`, we will be redirected to the Notifications page and see our new notification named pwn in the list. 9. Click on `Test` or `Run` to xecute the notification and run the command --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sectest.it/web-applications/web-technologies/prtg-network-monitor.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.