CVE-2020-16844: Authorization bypass in Istio
(updated )
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.
References
- github.com/advisories/GHSA-82mm-ffjr-h86c
- github.com/istio/istio/commit/4c73414556b83f0e75c1b3a0a89a23103a71573c
- github.com/istio/istio/commit/72d2e135374f421b656d6f1a21f474db46134ace
- github.com/istio/istio/releases
- github.com/istio/istio/releases/tag/1.5.9
- github.com/istio/istio/releases/tag/1.6.8
- istio.io/latest/news/releases/1.5.x/announcing-1.5.9/
- istio.io/latest/news/releases/1.6.x/announcing-1.6.8/
- istio.io/latest/news/security/istio-security-2020-009/
- nvd.nist.gov/vuln/detail/CVE-2020-16844
Code Behaviors & Features
Detect and mitigate CVE-2020-16844 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →