The XPC implementation in Admin Framework in Apple OS X before 10.10.3 allows local users to bypass authentication and obtain admin privileges via unspecified vectors.
https://github.com/sideeffect42/RootPipeTester
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1130
https://support.apple.com/HT204659
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-1273
http://www.securitytracker.com/id/1032048