Detections
Analytics
SCA: security update for istio.io/istio (GHSA-856q-xv3c-7f2f)
high Tenable Self-Hosted Container Security Plugin ID 412431
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- 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. (CVE-2022-23635)
See Also
Plugin Details
Severity: High
ID: 412431
Version: Revision 1.5
Type: Local
Family: SCA Checks
Published: 1/23/2025
Updated: 6/1/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.18
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2022-23635
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 2/23/2022
Vulnerability Publication Date: 2/22/2022
Reference Information
CVE: CVE-2022-23635