Authorization Bypass Vulnerability in Istio 1.5.0 - 1.5.8 and 1.6.0 - 1.6.7

CVE-2020-16844 · MEDIUM Severity

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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.

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