CVE-2022-23635— Unauthenticated control plane denial of service attack in Istio
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I. Basic Information for CVE-2022-23635
Vulnerability Information
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Vulnerability Title
Unauthenticated control plane denial of service attack in Istio
Source: NVD (National Vulnerability Database)
Vulnerability Description
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Istio 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Istio是一套连接、管理和保护微服务的开放平台。 Istio 存在授权问题漏洞，该漏洞源于在受影响的版本中，Istio控制平面“istiod”很容易出现请求处理错误。攻击者可利用该漏洞发送一个特别设计的消息，导致控制平面崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-23635
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|---|
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- https://istio.io/latest/news/security/istio-security-2022-003x_refsource_MISC
- https://github.com/istio/istio/security/advisories/GHSA-856q-xv3c-7f2fx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2022-23635
IV. Related Vulnerabilities
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