cve-2022-21701
Vulnerability from cvelistv5
Published
2022-01-19 21:40
Modified
2024-08-03 02:53
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions 1.12.0 and 1.12.1 Istio is vulnerable to a privilege escalation attack. Users who have `CREATE` permission for `gateways.gateway.networking.k8s.io` objects can escalate this privilege to create other resources that they may not have access to, such as `Pod`. This vulnerability impacts only an Alpha level feature, the Kubernetes Gateway API. This is not the same as the Istio Gateway type (gateways.networking.istio.io), which is not vulnerable. Users are advised to upgrade to resolve this issue. Users unable to upgrade should implement any of the following which will prevent this vulnerability: Remove the gateways.gateway.networking.k8s.io CustomResourceDefinition, set PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER=true environment variable in Istiod, or remove CREATE permissions for gateways.gateway.networking.k8s.io objects from untrusted users.
References
security-advisories@github.comhttps://github.com/istio/istio/security/advisories/GHSA-mq8f-9446-c28rThird Party Advisory
security-advisories@github.comhttps://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/Mitigation, Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/istio/istio/security/advisories/GHSA-mq8f-9446-c28rThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/Mitigation, Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
istio istio Version: >= 1.12.0, < 1.12.2
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  }
}


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  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.