OSSA-2014-026: Multiple vulnerabilities in Keystone revocation events

Date:

August 15, 2014

CVE:

CVE-2014-5252, CVE-2014-5251, CVE-2014-5253

Affects

• Keystone: 2014.1 versions up to 2014.1.1

Description

Lance Bragstad from Rackspace and Brant Knudson from IBM reported 3 vulnerabilities in Keystone revocation events. Lance Bragstad discovered that UUID v2 tokens processed by the V3 API are incorrectly updated and get their “issued_at” time regenerated (CVE-2014-5252). Brant Knudson discovered that the MySQL token driver stores expiration dates incorrectly which prevents manual revocation (CVE-2014-5251) and that domain-scoped tokens don’t get revoked when the domain is disabled (CVE-2014-5253). Tokens impacted by one of these bugs may allow a user to evade token revocation. Only Keystone setups configured to use revocation events are affected.

Patches

• https://review.openstack.org/#/c/112087 (Icehouse)

• https://review.openstack.org/#/c/111772 (Icehouse)

• https://review.openstack.org/#/c/112083 (Icehouse)

• https://review.openstack.org/#/c/112084 (Icehouse)

• https://review.openstack.org/#/c/111106 (Juno)

• https://review.openstack.org/#/c/109747 (Juno)

• https://review.openstack.org/#/c/109819 (Juno)

• https://review.openstack.org/#/c/109820 (Juno)

Credits

• Lance Bragstad from Rackspace (CVE-2014-5252)

• Brant Knudson from IBM (CVE-2014-5251, CVE-2014-5253)

References

• https://launchpad.net/bugs/1347961

• https://launchpad.net/bugs/1348820

• https://launchpad.net/bugs/1349597

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-5252

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-5251

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-5253