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Category:   Application (Generic)  >   freenet6 Vendors:   Viagenie
Freenet6 on Debian Linux Discloses Tunnel Broker Password to Local Users
SecurityTracker Alert ID:  1011460
SecurityTracker URL:  http://securitytracker.com/id/1011460
CVE Reference:   CVE-2004-0563   (Links to External Site)
Date:  Sep 30 2004
Impact:   Disclosure of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 0.9.6-1
Description:   A vulnerability was reported in freenet6 as distributed for Debian Linux. A local user can view passwords.

Debian reported that the '/etc/freenet6/tspc.conf' configuration file is installed with world-readable permissions. A local user can view the username and password for the IPv6 tunnel broker.

Simon Josefsson is credited with reporting this flaw.

Impact:   A local user can view the tunnel broker password.
Solution:   Debian has issued a fix for the stable distribution (woody) in version 0.9.6-1woody2 and for the unstable distribution (sid) in version 1.0-2.2.

Debian GNU/Linux 3.0 alias woody:

Source archives:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2.dsc
Size/MD5 checksum: 577 07d5a61effbf3748e61db855bf0afb4a
http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2.diff.gz
Size/MD5 checksum: 12385 9a30a4b9420bd4949e375358f974addc
http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6.orig.tar.gz
Size/MD5 checksum: 334333 c846c0e734d93c7abdc1553781e1fa5b

Alpha architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_alpha.deb
Size/MD5 checksum: 42380 3865b018d1808f349ade4d0d9e010af1

ARM architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_arm.deb
Size/MD5 checksum: 39996 a9f3b9d6b98173bdbc0173b32b602698

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_i386.deb
Size/MD5 checksum: 38434 2217e61b208d1a7a0ba7aa358861946a

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_ia64.deb
Size/MD5 checksum: 54672 d8f7d48de839f7b117cb91da4880f1e3

HP Precision architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_hppa.deb
Size/MD5 checksum: 39498 efb23a7b33d5c75dc12774b924f7adb7

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_m68k.deb
Size/MD5 checksum: 37766 2c81680bcbd3a113e1e3f3cd08446e7c

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_mips.deb
Size/MD5 checksum: 40490 0181be8c2a012f601872e02284ad22e6

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_mipsel.deb
Size/MD5 checksum: 40538 a2f052292ddfadd2cf5f99d67e4b20fa

PowerPC architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_powerpc.deb
Size/MD5 checksum: 38578 5e0aad661c57e19ed64376ee5d59a932

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_s390.deb
Size/MD5 checksum: 39094 3e3f26c92e1ff8169bc5016a8215e11e

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_sparc.deb
Size/MD5 checksum: 41458 1d3b8998d4dc533f4e6af82386e92515

Cause:   Configuration error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  3.0

Message History:   None.


 Source Message Contents

Subject:  [SECURITY] [DSA 555-1] New frenet6 packages fix potential information leak


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 555-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
September 30th, 2004                    http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : freenet6
Vulnerability  : wrong file permissions
Problem-Type   : local
Debian-specific: yes
CVE ID         : CAN-2004-0563
Debian Bug     : 254709

Simon Josefsson noticed that the tspc.conf configuration file in
freenet6, a client to configure an IPv6 tunnel to freenet6.net, is set
world readable.  This file can contain the username and the password
used to contact the IPv6 tunnelbroker freenet6.net.

For the stable distribution (woody) this problem has been fixed in
version 0.9.6-1woody2.

For the unstable distribution (sid) this problem has been fixed in
version 1.0-2.2.

We recommend that you upgrade your freenet6 package.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2.dsc
      Size/MD5 checksum:      577 07d5a61effbf3748e61db855bf0afb4a
    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2.diff.gz
      Size/MD5 checksum:    12385 9a30a4b9420bd4949e375358f974addc
    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6.orig.tar.gz
      Size/MD5 checksum:   334333 c846c0e734d93c7abdc1553781e1fa5b

  Alpha architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_alpha.deb
      Size/MD5 checksum:    42380 3865b018d1808f349ade4d0d9e010af1

  ARM architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_arm.deb
      Size/MD5 checksum:    39996 a9f3b9d6b98173bdbc0173b32b602698

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_i386.deb
      Size/MD5 checksum:    38434 2217e61b208d1a7a0ba7aa358861946a

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_ia64.deb
      Size/MD5 checksum:    54672 d8f7d48de839f7b117cb91da4880f1e3

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_hppa.deb
      Size/MD5 checksum:    39498 efb23a7b33d5c75dc12774b924f7adb7

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_m68k.deb
      Size/MD5 checksum:    37766 2c81680bcbd3a113e1e3f3cd08446e7c

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_mips.deb
      Size/MD5 checksum:    40490 0181be8c2a012f601872e02284ad22e6

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_mipsel.deb
      Size/MD5 checksum:    40538 a2f052292ddfadd2cf5f99d67e4b20fa

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_powerpc.deb
      Size/MD5 checksum:    38578 5e0aad661c57e19ed64376ee5d59a932

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_s390.deb
      Size/MD5 checksum:    39094 3e3f26c92e1ff8169bc5016a8215e11e

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/f/freenet6/freenet6_0.9.6-1woody2_sparc.deb
      Size/MD5 checksum:    41458 1d3b8998d4dc533f4e6af82386e92515


  These files will probably be moved into the stable distribution on
  its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.5 (GNU/Linux)

iD8DBQFBW8MMW5ql+IAeqTIRAh19AJ9RLzYVuAes9jNbWb5KKZ9ZMRRenQCeOZ6L
S0iCjHIpMP0b0sx77UMjKiQ=
=+SqI
-----END PGP SIGNATURE-----


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