Authorization bypass in Istio
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. ### Specific Go Packages Affected istio.io/istio/pilot/pkg/security/authz/model/matcher
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-16844US | medium6.8 | — | ||
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 sou… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/istio/istio/commit/4c73414556b83f0e75c1b3a0a89a23103a71573cWEB
- https://github.com/istio/istio/commit/72d2e135374f421b656d6f1a21f474db46134aceWEB
- https://github.com/istio/istio/releasesWEB
- https://github.com/istio/istio/releases/tag/1.5.9WEB
- https://github.com/istio/istio/releases/tag/1.6.8WEB
- https://istio.io/latest/news/releases/1.5.x/announcing-1.5.9WEB
- https://istio.io/latest/news/releases/1.6.x/announcing-1.6.8WEB
- https://istio.io/latest/news/security/istio-security-2020-009WEB
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