BugTraq
SI6 Networks' IPv6 Toolkit v1.5.2 released! Jan 17 2014 06:25PM
Fernando Gont (fgont si6networks com)
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Folks,

This is not meant to be a "big release", but it does fix some issues
present in previous versions, and adds some new features (please find
the changelog below).

So if you're using the ipv6toolkit, please upgrade to version 1.5.2.

Tarballs (plain one, and gpg-signed with my key below) can be found
at: <http://www.si6networks.com/tools/ipv6toolkit>).

* Tools:

If you want to find out which tools the ipv6toolkit comprises, just
do a "man 7 ipv6toolkit".

* Platforms:

We currently support these platforms: FreeBSD, NetBSD, OpenBSD, Debian
GNU/Linux, Debian GNU/kfreebsd, Gentoo Linux, Ubuntu, and Mac OS.

Some of these platforms now feature the ipv6toolkit in their package
system -- credits for that can be found below. :-)

===== CREDITS ======
CONTRIBUTORS
- ------------

** Contributors **

The following people sent patches that were incorporated into this
release of the toolkit:

Octavio Alvarez <alvarezp (at) alvarezp (dot) com [email concealed]>
Alexander Bluhm <bluhm (at) openbsd (dot) org [email concealed]>
Alistair Crooks <agc (at) pkgsrc (dot) org [email concealed]>
Declan A Rieb <darieb (at) sandia (dot) gov [email concealed]>

** Package maintainers **

Availability of packages for different operating systems makes it
easier for users to install and update the toolkit, and for the toolkit
to integrate better with the operating systems.

These are the maintainers for each of the different packages:

+ Debian

Octavio Alvarez <alvarezp (at) alvarezp (dot) com [email concealed]>, sponsored by Luciano Bello
<luciano (at) debian (dot) org [email concealed]>

+ FreeBSD

Hiroki Sato <hrs (at) FreeBSD (dot) org [email concealed]>

+ Gentoo Linux

Robin H. Johnson <robbat2 (at) gentoo (dot) org [email concealed]>

+ Mac OS

Declan A Rieb <darieb (at) sandia (dot) gov [email concealed]> tests the toolkit on multiple Mac
OS versions, to ensure clean compiles on such platforms.

+ NetBSD (pkgsrc framework)

Alistair Crooks <agc (at) pkgsrc (dot) org [email concealed]>

+ OpenBSD

Alexander Bluhm <bluhm (at) openbsd (dot) org [email concealed]>

** Troubleshooting/Debugging **

Spotting bugs in networking tool can be tricky, since at times they
only show up in specific network scenarios.

The following individuals provided great help in identifying bugs in
the the toolkit (thus leading to fixes and improvements):

Stephane Bortzmeyer <stephane (at) bortzmeyer (dot) org [email concealed]>
Marc Heuse <mh (at) mh-sec (dot) de [email concealed]>
Erik Muller <erikm (at) buh (dot) org [email concealed]>
Declan A Rieb <darieb (at) sandia (dot) gov [email concealed]>
Tim <tim-security (at) sentinelchicken (dot) org [email concealed]>
===== CREDITS =====

===== CHANGELOG =====
SI6 Networks IPv6 Toolkit v1.5.2

* All: Add support for GNU Debian/kfreebsd
The toolkit would not build on GNU Debian/kfreebsd before this
release.

* tcp6: Add support for TCP/IPv6 probes
tcp6 can now send TCP/IPv6 packets ("--probe-mode" option), and
read the TCP response packets, if any. This can be leveraged for
port scans, and miscellaneous measurements.

SI6 Networks IPv6 Toolkit v1.5.1
* Fix Mac OS breakage
libipv6.h had incorrect definitions for "struct tcp_hdr".

SI6 Networks IPv6 Toolkit v1.5

* All: Improved the next-hop determination
Since the toolkit employs libpcap (as there is no portable way to
forge IPv6 addresses and do other tricks), it was relying on the
user specifying a network interface ("-i" was mandatory for all
tools) and that routers would send Router Advertisements on the
local links. This not only was rather inconvenient for users
(specifying a network interface was not warranted), but also meant
that in setups where RAs where not available (e.g., manual
configuration), the tools would fail. The toolkit now employs
routing sockets (in BSDs) or Netlink (in Linux), and only uses
"sending RAs" as a fall-back in case of failure (IPv6 not
configured on the local host).

* All: Improved source address selection
This is closely related to the previous bullet.

* All: More code moved to libipv6
More and more code was moved to libipv6 and removed to the
individual tool source files. As with some of the above, this was
painful and time-consuming, but was necessary -- and in the long
run it will make code maintenance easier.

* All: libipv6 used throughout all tools
This was rather painful and non-exciting, but necessary.

SI6 Networks' IPv6 Toolkit v1.4.1

* frag6: Fixed bug that prevented Ethernet header from being filled
A bug in the code caused Ethernet frames to go on te wire without
any of their header fields completed.

* All: Use of library to avoid code replication
An "libipv6" library was created, such that common functions do
not need to be replicated for each tool. ni6, ns6, rs6, and tcp6
now employ such library.

SI6 Networks' IPv6 Toolkit v1.4 release

* frag6: Fixed the flooding option
Fixed the fragment size used when employing the flooding option.
It was previously sending fragment sizes that where not a multiple
of eight, and hence these fragments were dropped.

* scan6: Added support for 64-bit encoding of IPv4 addresses
Option "--tgt-ipv4" was augmented to support both encodings (32 bit
and 64 bit) of embedded IPv4 addresses.

* tcp6: Fixed response to Neighbor Solicitations
tcp6 was not responding to incoming Neighbor Solicitations. Hence,
when packets were sent from spoofed addresses, tcp6 would never
receive the response packets, because the NSs sent by the local
router or target node would never be responded.

* tcp6: Added support for TCP Window-based attacks
tcp6 can now close the window after sending an app-layer command,
and also "modulate" the TCP window to circumvent trivial
mitigations for these attacks ("--window-mode" and
"--win-modulate" options).

* tcp6: Support for multiple connection-establishment types
tcp6 can now cause e.g. TCP simultaneous opens (see the
"--open-mode" option).

* tcp6: Support for multiple connection-termination types
tcp6 can now perform multiple connection-termination types (see the
"--close-mode" option).

* tcp6: Support for sending application layer requests
tcp6 can now send application-layer requests with the "--data"
option.

* Many improvements to the manual pages.
Fixed the troff encoding of many manual pages. Added
ipv6toolkit(7), that describes a general description of the
toolkit.

* All: Fixed bug in link-layer destination address selection
Tools now try to find a local router or perform Neighbor Discovery
only when necessary (i.e., underlying link-layer is *not* loopback
or tunnel, destination address is *not* link-local, and a
link-layer destination address has *not* been specified).

* All: Fixed bug in option handling
Incorrect data type was used for the return value of
getopt_long(), thus leading to problems in some architectures.

* All: Fixed a number of issues with pcap_next_ex()
The timeout parameter of pcap_next_ex() is now based on the
platform (the previous constant value had different semantics in
different platforms).
Additionally, handle the case where pcap_next_ex() returns no
packets.

* All: General improvements and clean-up
The development process now includes building the toolkit with the
clang compiler (in addition to gcc), which has lead to the
identification of a number of issues.

* All: Improved support for building the toolkit.
The toolkit now contains one makefile for pmake, and another for
GNU make.
Added support for the DESTDIR variable. Appropriate paths are
selected based on the value of a number of variables.
Configuration file is dynamically generated, with the right path
to the oui.txt file.

===== CHANGELOG =====

- --
Fernando Gont
SI6 Networks
e-mail: fgont (at) si6networks (dot) com [email concealed]
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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