This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.
The remote FreeBSD host is missing one or more security-related
Daniel Knoppel reports :
It was discovered by the SUSE security team that it was possible, in
some cases, for clients to overwrite headers set by the server,
resulting in a medium level security issue. CVE-2015-7519 has been
assigned to this issue.
Affected use-cases :
Header overwriting may occur if all of the following conditions are
- Apache integration mode, or standalone+builtin engine without a
- Ruby or Python applications only (Passenger 5); or any application
- The app depends on a request header containing a dash (-)
- The header is supposed to be trusted (set by the server)
- The client correctly guesses the header name
This vulnerability has been fixed by filtering out client headers that
do not consist of alphanumeric/dash characters (Nginx already did
this, so Passenger+Nginx was not affected). If your application
depends on headers that don't conform to this, you can add a
workaround in Apache specifically for those to convert them to a
See also :
Update the affected packages.
Risk factor :
Medium / CVSS Base Score : 4.3