CyberSecBulletin
CVE-2022-1902NVD status: Modified

Red Hat Advanced Cluster Security for Kubernetes: Exposure of Resource to Wrong Sphere

CVE-2022-1902 is a high-severity exposure of resource to wrong sphere vulnerability in Red Hat Advanced Cluster Security for Kubernetes, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Red Hat Advanced Cluster Security for Kubernetes versions: Red Hat Advanced Cluster Security for Kubernetes 3. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.4% chance of exploitation within 30 days, higher than 73% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Red Hat Advanced Cluster Security for Kubernetes you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on access.redhat.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
Red Hat Advanced Cluster Security for KubernetesRed Hat Advanced Cluster Security for KubernetesRed Hat Advanced Cluster Security for Kubernetes 3Not stated
Red HatAdvanced Cluster Security3.68; 3.69; 3.70Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Official description

A flaw was found in the Red Hat Advanced Cluster Security for Kubernetes. Notifier secrets were not properly sanitized in the GraphQL API. This flaw allows authenticated ACS users to retrieve Notifiers from the GraphQL API, revealing secrets that can escalate their privileges.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

More Exposure of Resource to Wrong Sphere vulnerabilities (CWE-668)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Patches and release notes

Recent Exposure of Resource to Wrong Sphere vulnerabilities

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