9.8
CRITICAL
CVE-2022-21679
"Istio Envoy API Mix-Up Authorization Bypass"
Description

Istio is an open platform to connect, manage, and secure microservices. In Istio 1.12.0 and 1.12.1 The authorization policy with hosts and notHosts might be accidentally bypassed for ALLOW action or rejected unexpectedly for DENY action during the upgrade from 1.11 to 1.12.0/1.12.1. Istio 1.12 supports the hosts and notHosts fields in authorization policy with a new Envoy API shipped with the 1.12 data plane. A bug in the 1.12.0 and 1.12.1 incorrectly uses the new Envoy API with the 1.11 data plane. This will cause the hosts and notHosts fields to be always matched regardless of the actual value of the host header when mixing 1.12.0/1.12.1 control plane and 1.11 data plane. Users are advised to upgrade or to not mix the 1.12.0/1.12.1 control plane with 1.11 data plane if using hosts or notHosts field in authorization policy.

INFO

Published Date :

Jan. 19, 2022, 10:15 p.m.

Last Modified :

Jan. 27, 2022, 1:58 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2022-21679 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2022-21679 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Istio istio
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-21679.

URL Resource
https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvv Third Party Advisory
https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/ Release Notes Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC

cve-2020-

Updated: 2 years ago
5 stars 2 fork 2 watcher
Born at : Jan. 21, 2022, 5:07 a.m. This repo has been linked 2608 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-21679 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-21679 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 27, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvv No Types Assigned https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvv Third Party Advisory
    Changed Reference Type https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/ No Types Assigned https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/ Release Notes, Vendor Advisory
    Added CWE NIST CWE-670
    Added CPE Configuration OR *cpe:2.3:a:istio:istio:1.12.0:-:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:alpha0:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:alpha5:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:beta0:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:beta1:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:beta2:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.0:rc1:*:*:*:*:*:* *cpe:2.3:a:istio:istio:1.12.1:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-21679 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-21679 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.24 }} 0.02%

score

0.64723

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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