Capsule Proxy Authentication bypass using an empty token

The privilege escalation is based on a missing check if the user is authenticated based on the TokenReview result. All the clusters running with the anonymous-auth Kubernetes API Server setting disable set to false are affected since it would be possible to bypass the token review mechanism,...

PT-2023-30775 · Unknown · Capsule-Proxy

Name of the Vulnerable Software and Affected Versions: capsule-proxy versions prior to 0.4.6 Description: The issue is a privilege escalation vulnerability based on a missing check if the user is authenticated based on the TokenReview result. This affects clusters running with the anonymous-auth...

Important: Red Hat Enhancement Advisory: ACS 4.3 enhancement update

Updated images are now available for Red Hat Advanced Cluster Security. The updated image includes new features and bug fixes. Release of ACS 4.3 provides these changes: New features: Increased support for hardware and software Vulnerability reporting 2.0 is generally available Watch and scan...

CVE-2023-45807 OpenSearch Issue with tenant read-only permissions

OpenSearch is a community-driven, open source fork of Elasticsearch and Kibana following the license change in early 2021. There is an issue with the implementation of tenant permissions in OpenSearch Dashboards where authenticated users with read-only access to a tenant can perform create, edit...

CVE-2023-4958

In Red Hat Advanced Cluster Security RHACS, it was found that some security related HTTP headers were missing, allowing an attacker to exploit this with a clickjacking attack. An attacker could exploit this by convincing a valid RHACS user to visit an attacker-controlled web page, that deceptivel...

Kubernetes 安全漏洞

Kubernetes K8s is an open source system from the Cloud Native Computing Foundation for automating the deployment, scaling, and management of containerized applications. A security vulnerability exists in Kubernetes kOps that stems from improper privilege management in kOps when running in Gossip...

Important: Red Hat Security Advisory: Red Hat Advanced Cluster Security 3.74 for Kubernetes security update

An update is now available for Red Hat Advanced Cluster Security for Kubernetes RHACS. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

PT-2023-22620 · Unknown · Grc-Policy-Propagator

Name of the Vulnerable Software and Affected Versions: grc-policy-propagator affected versions not specified Description: The issue allows security escalation within the cluster. It is related to policies that contain dynamically obtained values, which can take advantage of cluster scoped access ...

CVE-2023-2250

The CVE-2023-2250 entry concerns Open Cluster Management (OCM). Affected component/condition: a user with access to worker nodes containing the cluster-manager-registration-controller or cluster-manager deployments can escalate privileges. Root cause: a malicious user can bind the cluster-admin r...

CVE-2023-26484

CVE-2023-26484 affects KubeVirt up to version 0.59.0. If an attacker compromises a Kubernetes node where virt-handler runs, the virt-handler service account can modify all node specs, enabling reading secrets and pod-level actions on other nodes and potentially elevating privileges cluster-wide. ...

xCAT 安全漏洞

xCAT is a toolset that provides complete management for HPC clusters, render farms, grids, web farms, online gaming infrastructures, clouds, and data centers. A security vulnerability exists in xCAT versions prior to 2.16.5, which stems from the fact that if a zone is configured for cluster...

SUSE CVE-2021-25742

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster...

SUSE CVE-2021-31999

A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the "Impersonate-User" or "Impersonate-Group" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16...

Enhancing Kubernetes security with user namespaces

Learn how to improve cluster security with user namespaces, a new feature introduced in Kubernetes v1.25...

CVE-2022-47633

An image signature validation bypass vulnerability in Kyverno 1.8.3 and 1.8.4 allows a malicious image registry or a man-in-the-middle attacker to inject unsigned arbitrary container images into a protected Kubernetes cluster. This is fixed in 1.8.5. This has been fixed in 1.8.5 and mitigations a...

The vulnerability of Red Hat Advanced Cluster Security (RHACS) for Kubernetes, related to server-side manipulation of requests, allows attackers to enhance their privileges and gain unauthorized access to protected information.

The vulnerability of the Red Hat Advanced Cluster Security RHACS control and container management tool for Kubernetes is related to server-side manipulation of requests. Exploiting this vulnerability can allow attackers to enhance their privileges and gain unauthorized access to protected...

CVE-2022-1902

CVE-2022-1902 describes a vulnerability in Red Hat Advanced Cluster Security for Kubernetes where Notifier secrets were not properly sanitized in the GraphQL API. This allows authenticated ACS users to retrieve Notifiers via GraphQL, potentially escalating privileges. CVSSv3.1 base score 8.8 (HIG...

CVE-2022-2553

The authfile directive in the booth config file is ignored, preventing use of authentication in communications from node to node. As a result, nodes that do not have the correct authentication key are not prevented from communicating with other nodes in the cluster...

DEBIAN-CVE-2022-2553

The authfile directive in the booth config file is ignored, preventing use of authentication in communications from node to node. As a result, nodes that do not have the correct authentication key are not prevented from communicating with other nodes in the cluster...

UBUNTU-CVE-2022-2553

The authfile directive in the booth config file is ignored, preventing use of authentication in communications from node to node. As a result, nodes that do not have the correct authentication key are not prevented from communicating with other nodes in the cluster...