{"id":"PYSEC-2017-66","details":"The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.","aliases":["CVE-2015-3206","GHSA-mffc-9gx5-99g3","PYSEC-2017-49"],"modified":"2026-06-10T17:01:40.747674771Z","published":"2017-08-25T18:29:00Z","references":[{"type":"WEB","url":"https://pypi.python.org/pypi/kerberos"},{"type":"REPORT","url":"https://github.com/apple/ccs-pykerberos/issues/31"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1223802"},{"type":"WEB","url":"http://www.securityfocus.com/bid/74760"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2015/05/21/3"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-mffc-9gx5-99g3"}],"affected":[{"package":{"name":"pykerberos","ecosystem":"PyPI","purl":"pkg:pypi/pykerberos"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.6"}]}],"versions":["1.1.3","1.1.4","1.1.5"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/pykerberos/PYSEC-2017-66.yaml"}}],"schema_version":"1.7.5"}