Keyoti SearchUnit prior to 9.0.0. is vulnerable to Server-Side Request Forgery (SSRF) in /Keyoti_SearchEngine_Web_Common/SearchService.svc/GetResults and /Keyoti_SearchEngine_Web_Common/SearchService.svc/GetLocationAndContentCategories. An attacker can specify their own SMB server as the indexDirectory value when making POST requests to the affected components. In doing so an attacker can get the SearchUnit server to read and write configuration and log files from/to the attackers server.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.