mirror of
https://github.com/yarrick/iodine.git
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9e265625a1
The client could bypass the password check by continuing after getting error from the server and guessing the network parameters. The server would still accept the rest of the setup and also network traffic. Add checks for normal and raw mode that user has authenticated before allowing any other communication. Problem found by Oscar Reparaz. Backported to iodine 0.6 branch.
145 lines
6.3 KiB
Text
145 lines
6.3 KiB
Text
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iodine - http://code.kryo.se/iodine
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***********************************
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CHANGES:
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2014-06-17: 0.6.0
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- Fix authentication bypass vulnerability; found by Oscar Reparaz.
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2010-02-06: 0.6.0-rc1 "Hotspotify"
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- Fixed tunnel not working on Windows.
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- Any device name is now supported on Windows, fixes #47.
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- Multiple installed TAP32 interfaces are now supported, fixes #46.
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- Return nonzero if tunnel fails to open, fixes #62.
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- Support for setting a SELinux context, based on patch by
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Sebastien Raveau. Sample context file in doc/iodine.te
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- Allow listen port and DNS forward port to be the same if listen IP
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does not include localhost.
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- The client will now exit if configuring IP or MTU fails.
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- The starting cache miss value is randomized at startup, fixes #65.
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- Raw UDP mode added. If the iodined server is reachable directly,
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packets can be sent to it without DNS encoding. Fixes #36.
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- Do not overwrite users CC/CFLAGS/LDFLAGS, only add to them.
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- Added -F option to write pidfile, based on patch from
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misc at mandriva.org. Fixes #70.
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- Allow password to be set via environment variable, fixes #77.
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Based on patch by logix.
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- Client now prints server tunnel IP, fixes #78. Patch by logix.
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- Fix build error on Mac OS X 10.6, patch by G. Rischard. #79.
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- Added support for CNAME/TXT/A/MX query types, fixes #75.
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Patch by Anne Bezemer, merge help by logix.
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- Merged low-latency patch from Anne Bezemer, fixes #76.
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- Resolve client nameserver argument if given as hostname, fixes #82.
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- Open log before chroot, fixes #86: logging on FreeBSD.
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2009-06-01: 0.5.2 "WifiFree"
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- Fixed client segfault on OS X, #57
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- Added check that nameserver lookup was successful
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- Fixed ENOTSOCK error on OS X and FreeBSD, #58.
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2009-03-21: 0.5.1 "Boringo"
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- Added initial Windows support, fixes #43.
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- Added length check of autoprobe responses
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- Refactored and added unit tests
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- Added syslog logging for iodined on version and login packets
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- Fixed segfault when encoding just one block, fixes #51.
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The normal code was never affected by this.
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- Added win32 code to read DNS server from system, fixes #45.
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- Disabled password echo on win32, fixes #44.
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- Fix encoding error making all autoprobing > 1024 bytes fail, #52.
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- Increase default interface MTU to 1200.
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- Fix autoprobing error making every third probe fail, set IP flag
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Dont-Fragment where supported. Fixes #54.
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- Added TAP32 version 0901 as accepted (#53).
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2009-01-23: 0.5.0 "iPassed"
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- Fixed segfault in server when sending version reject.
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- Applied patch to make iodine build on BeOS R5-BONE and Haiku,
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from Francois Revol. Still work to do to get tun device working.
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- Added capability to forward DNS queries outside tunnel domain to
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a nameserver on localhost. Use -b port to enable, fixes #31.
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- iodined now replies to NS request on its own domain, fixes issue #33.
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The destination IP address is sent as reply. Use -n to specify
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a specific IP address to return (if behind NAT etc).
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- Upstream data is now Base64 encoded if relay server preserves case and
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supports the plus (+) character in domain names, fixes #16.
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- Fixed problem in client when DNS trans. ID has highest bit set (#37)
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- IP addresses are now assigned within the netmask, so iodined can
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use any address for itself, fixes #28.
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- Netmask size is now adjustable. Setting a small net will reduce the
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number of users. Use x.x.x.x/n notation on iodined tunnel ip.
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This fixes #27.
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- Downstream data is now fragmented, and the fragment size is auto-
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probed after login. Fixes #7. It only took a few years :)
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- Enhanced the checks that validates incoming packets
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- Fixed endless loop in fragment size autodetection, #39.
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- Fixed broken hostname dot placing with specific lengths, #40.
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2008-08-06: 0.4.2 "Opened Zone"
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- Applied a few small patches from Maxim Bourmistrov and Gregor Herrmann
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- Applied a patch for not creating and configuring the tun interface,
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Debian bug #477692 by Vincent Bernat, controlled by -s switch
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- Applied a security patch from Andrew Griffiths, use setgroups() to
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limit the groups of the user
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- Applied a patch to make iodine build on (Open)Solaris, from Albert Lee
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Needs TUN/TAP driver http://www.whiteboard.ne.jp/~admin2/tuntap/
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Still needs more code in tun.c for opening/closing the device
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- Added option in server (-c) to disable IP/port checking on packets,
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will hopefully help when server is behind NAT
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- Fixed bug #21, now only IP address part of each packet is checked.
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Should remove the need for the -c option and also work with
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bugfixed DNS servers worldwide.
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- Added -D option on server to enable debugging. Debug level 1 now
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prints info about each RX/TX datagram.
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2007-11-30: 0.4.1 "Tea Online"
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- Introduced encoding API
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- Switched to new Base32 implementation
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- Added Base64 implementation that only uses 63 chars (not used yet)
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- Refined 'install' make target and use $(MAKE) for recursive calls
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- All received error messages (RCODE field) are echoed
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- Top domain limited to 128 chars
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- Case preservation check sent after login to decide codec
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- Fixed crash on incoming NULL query in server with bad top domain
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- /etc/resolv.conf is consulted if no nameserver is given on commandline
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- Applied patch from Matthew W. S. Bell (Detach before chroot/dropping priv)
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2007-03-25: 0.4.0 "Run Home"
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- Added multiuser support (up to 8 users simultaneously)
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- Added authentication (password entered as argument or on stdin)
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- Added manpage
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- Added install/uninstall make target
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- Cleanup of dns code, more test cases, use check library
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- Changed directory structure
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2006-11-08: 0.3.4
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- Fixed handshake() buffer overflow
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(Found by poplix, Secunia: SA22674 / FrSIRT/ADV-2006-4333)
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- Added more tests
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- More name parsing enhancements
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- Now runs on Linux/AMD64
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- Added setting to change server port
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2006-11-05: 0.3.3
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- Fixed possible buffer overflow
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(Found by poplix, Bugtraq ID: 20883)
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- Reworked dns hostname encoding
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2006-09-11: 0.3.2
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- Support for NetBSD
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- Fixed potential security problems
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- Name parsing routines rewritten, added regression tests
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- New encoding, 25% more peak upstream throughput
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- New -l option to set local ip to listen to on server
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2006-07-11: 0.3.1
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- Add Mac OSX support
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- Add setting device name
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- Use compression of domain name in reply (should allow setting MTU
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approx 200 bytes higher)
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2006-06-24: 0.3.0
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- First public release
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- Support for Linux, FreeBSD, OpenBSD
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