8.8

CVE-2022-21701

Privileged Escalation in Istio

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Istio ≫ Istio Version 1.12.0 Update -
Istio ≫ Istio Version 1.12.0 Update alpha0
Istio ≫ Istio Version 1.12.0 Update alpha1
Istio ≫ Istio Version 1.12.0 Update alpha5
Istio ≫ Istio Version 1.12.0 Update beta0
Istio ≫ Istio Version 1.12.0 Update beta1
Istio ≫ Istio Version 1.12.0 Update beta2
Istio ≫ Istio Version 1.12.0 Update rc1
Istio ≫ Istio Version 1.12.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.77% 0.507
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 6 6.8 6.4
AV:N/AC:M/Au:S/C:P/I:P/A:P
security-advisories@github.com 5 1.6 3.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/
Vendor Advisory
Release Notes
Mitigation
https://github.com/istio/istio/security/advisories/GHSA-mq8f-9446-c28r
Third Party Advisory