{"id":"GHSA-82mm-ffjr-h86c","summary":"Authorization bypass in Istio","details":"In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.\n\n### Specific Go Packages Affected\nistio.io/istio/pilot/pkg/security/authz/model/matcher","aliases":["CVE-2020-16844"],"modified":"2023-11-08T04:02:39.497559Z","published":"2022-02-15T01:57:18Z","database_specific":{"github_reviewed_at":"2021-05-12T21:59:07Z","nvd_published_at":null,"cwe_ids":["CWE-284"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16844"},{"type":"WEB","url":"https://github.com/istio/istio/commit/4c73414556b83f0e75c1b3a0a89a23103a71573c"},{"type":"WEB","url":"https://github.com/istio/istio/commit/72d2e135374f421b656d6f1a21f474db46134ace"},{"type":"WEB","url":"https://github.com/istio/istio/releases"},{"type":"WEB","url":"https://github.com/istio/istio/releases/tag/1.5.9"},{"type":"WEB","url":"https://github.com/istio/istio/releases/tag/1.6.8"},{"type":"WEB","url":"https://istio.io/latest/news/releases/1.5.x/announcing-1.5.9"},{"type":"WEB","url":"https://istio.io/latest/news/releases/1.6.x/announcing-1.6.8"},{"type":"WEB","url":"https://istio.io/latest/news/security/istio-security-2020-009"}],"affected":[{"package":{"name":"istio.io/istio","ecosystem":"Go","purl":"pkg:golang/istio.io/istio"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.5.0"},{"fixed":"1.5.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-82mm-ffjr-h86c/GHSA-82mm-ffjr-h86c.json"}},{"package":{"name":"istio.io/istio","ecosystem":"Go","purl":"pkg:golang/istio.io/istio"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.6.0"},{"fixed":"1.6.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-82mm-ffjr-h86c/GHSA-82mm-ffjr-h86c.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}