{"id":"CVE-2020-12692","details":"An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.","aliases":["GHSA-rqw2-hhrf-7936","PYSEC-2020-56"],"modified":"2026-02-23T08:21:39.446976Z","published":"2020-05-07T00:15:10.987Z","references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/05/07/1"},{"type":"ADVISORY","url":"https://bugs.launchpad.net/keystone/+bug/1872737"},{"type":"ADVISORY","url":"https://security.openstack.org/ossa/OSSA-2020-003.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4480-1/"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2020/05/06/4"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2020/05/07/1"},{"type":"ARTICLE","url":"https://www.openwall.com/lists/oss-security/2020/05/06/4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openstack/keystone","events":[{"introduced":"0"},{"fixed":"95b2bbeab113d9f04d1c81f7f1b48bf692bce979"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12692.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}