A HTTP proxy server is running at this Host and accepts unauthenticated requests from the OVS Scanner. An open proxy is a proxy server that is accessible by any Internet user. Generally, a proxy server allows users within a network group to store and forward Internet services such as DNS or web pages to reduce and control the bandwidth used by the group. With an open proxy, however, any user on the Internet is able to use this forwarding service.
Limit access to the proxy to valid users and/or valid hosts.