Tim Brown has reported a vulnerability in FreeProxy, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the processing of "Host" HTTP headers. This can be exploited to cause the proxy service to hang and stop responding to other requests via e.g. a GET request with a specially crafted "Host" header.
The vulnerability is reported in version 3.81 build 1511. Other versions may also be affected.
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Subject: FreeProxy "Host" Header Denial of Service Vulnerability
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