Date: Tue, 28 May 2013 22:36:22 +0200 From: Thierry Carrez <thierry@...nstack.org> To: "openstack@...ts.launchpad.net" <openstack@...ts.launchpad.net>, oss-security@...ts.openwall.com, openstack-announce@...ts.openstack.org Subject: [OSSA 2013-014] Missing expiration check in Keystone PKI tokens validation (CVE-2013-2104) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 OpenStack Security Advisory: 2013-014 CVE: CVE-2013-2104 Date: May 28, 2013 Title: Missing expiration check in Keystone PKI tokens validation Reporter: Eoghan Glynn (Red Hat), Alex Meade (Rackspace) Products/Affects: Keystone (Folsom only), python-keystoneclient (0.2.0+) Description: Eoghan Glynn from Red Hat and Alex Meade from Rackspace both reported a vulnerability in expiry checks for PKI tokens in the Keystone authentication middleware. Expired tokens for authenticated users could continue to be used, potentially resulting in the bypass of intended security policies. The effect of PKI token revocation is also reversed when the token expires, in the sense that a revoked token is once again treated as being valid. Only setups using PKI tokens are affected. Note: The affected code was added to Keystone in the Folsom release, but was moved to python-keystoneclient during the Grizzly development cycle. python-keystoneclient fix (will be included in upcoming 0.2.4 release): https://review.openstack.org/#/c/30742/ Keystone (Folsom) fix: https://review.openstack.org/#/c/30743/ References: https://bugs.launchpad.net/python-keystoneclient/+bug/1179615 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2013-2104 - -- Thierry Carrez (ttx) OpenStack Vulnerability Management Team -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQIcBAEBCAAGBQJRpRVGAAoJEFB6+JAlsQQjBRAP/iyScNAht67EMgGed4GWNKd3 2zHOgmqIq31S558ugul1e3qNgggnQ0qJvI1RjcgZuKoJEhH8SaPZBuykyycSvO9M L2Bex+GKAGAMuaz4ryPcnt7xJg+Mc0cksdCldeW1pXMrt8yITSQgXe0GqnGssoC+ 5TCk7JG8ADczbDGMa/nyc65tksbEI8hNJYyLLbCapvxfz4VqL2r5yp0vT0/jWDxy FLocAYnoKm9oxl0In5zioMQs0cSYAAa5EjwMLMMmUF/Axa7GskUOME8Q/GdgpMzJ h5AutinbpANSysz8pTB9bps7WSq33KfGKBN23caP43XvyMVA6CTsLUJH+U/9n+9u 0rTmKcumLXW9nkf5leki1u69VqRZFksrcEzJVtXdDyGGvFbZjPLcoA8lWifluSK/ vhu+T+RSnFWicki/Ifiz7c4tK6RYSB+a4G3/982GBxKp1sm3WLKd3ljsmpsqFeAY sz1o6p8zTgKIsYKrFEO6wMx37Qiga1RRB0As9msmAHJ6LXTO5ev8LcxXBjRjSIPs kTxoxHomRhbJAigvw+qSNSZz3DjrEywcqlNLLINQio21gzPMP4v1GVzwvroI8akf 6oz4DLDMcbdI1yQ7jjEhpnrcpFRHrJi2a45Tv6dlto34LvG7gLvgmLgnkJs0XMw7 BslUz5cGAucwXTz2vSHs =bu2N -----END PGP SIGNATURE-----
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