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thttpd < 2.20 ssi Servlet Traversal File Access

Medium

Synopsis

The remote host is vulnerable to a flaw which allows attackers to retrieve sensitive files.

Description

The remote web server (thttpd) allows an attacker to read arbitrary files on this host, by exploiting a weakness in an included ssi package, in prepending %2e%2e/ to the pathname (as in GET /cgi-bin/ssi//%2e%2e/%2e%2e/etc/passwd).

Solution

Upgrade to thttpd 2.20 or higher.