full-disclosure - [FD] Totaljs CMS authenticated path traversal (could lead to RCE)

Open Source and information security mailing list archives

Date: Fri, 30 Aug 2019 19:45:41 +0200
From: paw <riccardo.krauter@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Totaljs CMS authenticated path traversal (could lead to RCE)

*Totaljs CMS authenticated path traversal (could lead to RCE)*

[+] Author/Discoverer: Riccardo Krauter @CertimeterGroup
**

[+] Title: Totaljs CMS authenticated path traversal (could lead to RCE)

[+] Affected software: Totaljs CMS 12.0

[+] Description: An authenticated user with “Pages” privilege can 
include via path traversal attack (../) .html files that are outside the 
permitted directory. Also if the page contains template directive, then 
the directive will be server side processed, so if a user can control 
the content of a .html file, then can inject payload with malicious 
template directive to gain RemoteCodeExecution.
The exploit will work only with .html extension.

[+] Step to reproduce:

1) go to http://localhost:8000/admin/pages/
2) click on create button
3) enable burp proxy forwarding
4) select a template from the menu this will send a POST request to the API
5) from burp modify the json body request by adding the path traversal 
on the template parameter like this 
{"body":"","template":"../../../../../../../../../../../../var/www/html/test_rce"}
do NOT add the .html extension it will be added to the back-end API
6) send the request

[+] Project link: https://github.com/totaljs/cms

[+] Original report and details: 
https://github.com/beerpwn/CVE/blob/master/Totaljs_disclosure_report/report_final.pdf

[+] Timeline:

- 13/02/2019 -> reported the issue to the vendor

.... many ping here

- 18/06/2019 -> pinged the vendor last time

- 29/08/2019 -> reported to seclist

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives