CVE-2022-24726
Istio Control Plane DoS 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 when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, 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 [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.
INFO
Published Date :
March 10, 2022, 9:15 p.m.
Last Modified :
March 18, 2022, 8:20 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2022-24726.
| URL | Resource |
|---|---|
| https://github.com/golang/go/issues/51112 | Issue Tracking Patch Third Party Advisory |
| https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd | Patch Third Party Advisory |
| https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g | Issue Tracking Third Party 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-24726 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-24726 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]
Mar. 18, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/golang/go/issues/51112 No Types Assigned https://github.com/golang/go/issues/51112 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd No Types Assigned https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd Patch, Third Party Advisory Changed Reference Type https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g No Types Assigned https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g Issue Tracking, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* versions up to (excluding) 1.11.8 *cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* versions from (including) 1.12.0 up to (excluding) 1.12.5 *cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-24726 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-2022-24726
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.02%
score
0.50404
percentile