An information disclosure flaw was found in the way Plone, a user friendly and powerful content management system, enforced permissions check on membership database. A remote attacker could provide a specially-crafted URL that, when processed could allow the attacker to enumerate user account names. References: [1] http://plone.org/products/plone/security/advisories/20121106/13 [2] http://plone.org/products/plone/security/advisories/20121106/ Relevant upstream HotFixes: [3] http://plone.org/products/plone-hotfix/releases/20121106 From the OSS post: [4] http://www.openwall.com/lists/oss-security/2012/11/07/4 the membership_tool.py change from upstream HotFix is relevant to this issue.
The CVE identifier of CVE-2012-5497 has been assigned to this issue: http://www.openwall.com/lists/oss-security/2012/11/10/1
This issue may affect the version of plone as shipped with EPEL5, however the latest version there is 3.1.6 (and the latest 3.x release is 3.3.5, which was released a year prior to this flaw being discovered). Given the age of the EPEL5 package and its lack of support, we do not recommend anyone use it. This issue does affect plone as provided with the conga package on Red Hat Enterprise Linux 5.
IssueDescription: It was discovered that Plone, included as a part of luci, did not properly enforce permissions checks on the membership database. A remote attacker could use a specially crafted URL that, when processed, could allow the attacker to enumerate user account names.
This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Via RHSA-2014:1194 https://rhn.redhat.com/errata/RHSA-2014-1194.html