V-SOL GPON/EPON OLT Platform v2.03 Link Manipulation Vulnerability Vendor: Guangzhou V-SOLUTION Electronic Technology Co., Ltd. Product web page: https://www.vsolcn.com Affected version: V2.03.62R_IPv6 V2.03.54R V2.03.52R V2.03.49 V2.03.47 V2.03.40 V2.03.26 V2.03.24 V1.8.6 V1.4 Summary: GPON is currently the leading FTTH standard in broadband access technology being widely deployed by service providers around the world. GPON/EPON OLT products are 1U height 19 inch rack mount products. The features of the OLT are small, convenient, flexible, easy to deploy, high performance. It is appropriate to be deployed in compact room environment. The OLTs can be used for 'Triple-Play', VPN, IP Camera, Enterprise LAN and ICT applications. Desc: Input passed via the 'parent' GET parameter in 'bindProfile.html' script is not properly verified before being used to redirect users. This can be exploited to redirect a logged-in user to an arbitrary website e.g. when a user clicks a specially crafted link to the affected script hosted on a trusted domain. Tested on: GoAhead-Webs Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2019-5535 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5535.php 25.09.2019 -- CSRF URL Redirect request: GET /action/bindProfile.html?parent=https://zeroscience.mk/index Host: 192.168.8.200 Response: HTTP/1.1 200 OK Location: https://zeroscience.mk/index.html?select=0