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CVE-2021-43798 PoC — Grafana path traversal

Source
Associated Vulnerability
Title:Grafana path traversal (CVE-2021-43798)
Description:Grafana is an open-source platform for monitoring and observability. Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files. The vulnerable URL path is: `<grafana_host_url>/public/plugins//`, where is the plugin ID for any installed plugin. At no time has Grafana Cloud been vulnerable. Users are advised to upgrade to patched versions 8.0.7, 8.1.8, 8.2.7, or 8.3.1. The GitHub Security Advisory contains more information about vulnerable URL paths, mitigation, and the disclosure timeline.
Description
Automated path traversal testing tool for Grafana plugin endpoints using curl and Bash.
Readme
# Grafana Path Traversal Tester

This script automates the testing of known Grafana plugin endpoints for potential path traversal vulnerabilities using `curl`.

## 🛠 Features

- Reads target paths from a file (e.g. `paths.txt`)
- Sends HTTP requests using `--path-as-is` to bypass normalization
- Captures HTTP status codes and response bodies
- Saves only successful responses (HTTP 200) to individual files
- Silent and clean output for easy triaging

## 📂 Output

Successful hits are saved in the `hits/` directory with safe, readable filenames derived from the path.

## 🚀 Usage

1. Add your list of paths (relative to the plugin directory) to `paths.txt`
2. Run the script:

```bash
chmod +x grafana-cve-2021-43798.sh
./grafana-cve-2021-43798.sh
File Snapshot

[4.0K] /data/pocs/1be45a239c73bb11be3c0f1aafb8a948be6c758c ├── [1.2K] grafana-cve-2021-43798.sh ├── [4.0K] paths.txt └── [ 760] README.md 0 directories, 3 files
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