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V-SOL GPON/EPON OLT Platform v2.03 Link Manipulation Vulnerability

Medium
Advisory ID
ZSL-2019-5535
Release Date
26 September 2019
Vendor
Guangzhou V-SOLUTION Electronic Technology Co., Ltd. - 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
Tested On
GoAhead-Webs
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.

Description

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.

Proof of Concept
Disclosure Timeline
N/A
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
26.09.2019Initial release
03.10.2019Added reference [1], [2] and [3]
24.03.2026Added reference [4]