From: Robert Buchholz (rbugentoo.org)
Date: Wed Dec 10 2008 - 10:51:45 CST

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200812-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: OpenSC: Insufficient protection of smart card PIN
      Date: December 10, 2008
      Bugs: #233543
        ID: 200812-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Smart cards formatted using OpenSC do not sufficiently protect the PIN,
allowing attackers to reset it.

Background
==========

OpenSC is a smart card application that allows reading and writing via
PKCS#11.

Affected packages
=================

    -------------------------------------------------------------------
     Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
  1 dev-libs/opensc < 0.11.6 >= 0.11.6

Description
===========

Chaskiel M Grundman reported that OpenSC uses weak permissions (ADMIN
file control information of 00) for the 5015 directory on smart cards
and USB crypto tokens running Siemens CardOS M4.

Impact
======

A physically proximate attacker can exploit this vulnerability to
change the PIN on a smart card and use it for authentication, leading
to privilege escalation.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenSC users should upgrade to the latest version, and then check
and update their smart cards:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/opensc-0.11.6"
    # pkcs15-tool --test-update
    # pkcs15-tool --test-update --update

References
==========

  [ 1 ] CVE-2008-2235
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2235

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200812-09.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
securitygentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)
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=N3wW
-----END PGP SIGNATURE-----

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]