Barapass, Tsunami scanner, vulnerabilities in Windows DNS Server and SAP products, weird attack on Twitter

This episode is based on posts from my Telegram channel avleonovcom, published in the last 2 weeks. So, if you use Telegram, please subscribe. I update it frequently. Barapass update I recently released an update to my password manager barapass. BTW, it seems to be my only pet project at the MVP...

Saferwall - A Hackable Malware Sandbox For The 21St Century

Saferwall is an open source malware analysis platform. It aims for the following goals: Provide a collaborative platform to share samples among malware researchers. Acts as a system expert, to help researchers generates an automated malware analysis report. Hunting platform to find new malwares...

Security Bulletin: IBM Cloud Kubernetes Service is affected by a Kubernetes kubelet and kube-proxy security vulnerability (CVE-2020-8558)

Summary IBM Cloud Kubernetes Service is affected by a security vulnerability in the Kubernetes kubelet and kube-proxy that could allow neighboring nodes to bypass localhost boundary CVE-2020-8558 Vulnerability Details CVEID: CVE-2020-8558 Description: Kubernetes kube-proxy could allow a remote...

Security Bulletin: IBM Cloud Kubernetes Service is affected by a Kubernetes kubelet security vulnerability (CVE-2020-8551)

Summary IBM Cloud Kubernetes Service is affected by a security vulnerability in the Kubernetes kubelet that could lead to a denial of service CVE-2020-8551 Vulnerability Details CVEID: CVE-2020-8551 DESCRIPTION: Kubernetes kubelet API is vulnerable to a denial of service, caused by improper input...

CVE-2020-8557

A flaw was found in Kubernetes, where the amount of disk space the /etc/hosts file can use is unconstrained . This flaw can allow attacker-controlled pods to cause a denial of service if they have permission to write to the node's /etc/hosts file. Mitigation On OpenShift Container Platform OCP 3....

CVE-2020-8559

A flaw was found in the Kubernetes API server, where it allows an attacker to escalate their privileges from a compromised node. This flaw allows an attacker who can intercept requests on a compromised node, to redirect those requests, along with their credentials, to perform actions on other...

Low: Red Hat Security Advisory: OpenShift Container Platform 4.4.12 ose-cloud-credential-operator-container security update

An update for ose-cloud-credential-operator-container is now available for Red Hat OpenShift Container Platform 4.4. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

RHEL 7 / 8 : OpenShift Container Platform 4.5 (RHSA-2020:2413)

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2413 advisory. Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or...

Node disk DOS by writing to container /etc/hosts

CVSS Rating: Medium 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/CR:H/IR:H/AR:M The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it...

Moderate: Red Hat Security Advisory: OpenShift Container Platform 4.5 container image security update

An update is now available for Red Hat OpenShift Container Platform 4.5. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

kubernetes: credential leak in kube-controller-manager via error messages in mount failure logs and events for AzureFile and CephFS volumes

A flaw was found in Kubernetes that allows the logging of credentials when mounting AzureFile and CephFS volumes. This flaw allows an attacker to access kubelet logs, read the credentials, and use them to access other services. The highest threat from this vulnerability is to confidentiality...

Moderate: Red Hat Security Advisory: OpenShift Container Platform 4.5 package security update

An update for machine-config-daemon and openshift is now available for Red Hat OpenShift Container Platform 4.5. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, i...

kubernetes: Denial of service in API server via crafted YAML payloads by authorized users

The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML...

kubernetes: node localhost services reachable via martian packets

A flaw was found in Kubernetes that allows attackers on adjacent networks to reach services exposed on localhost ports, previously thought to be unreachable. This flaw allows an attacker to gain privileges or access confidential information for any services listening on localhost ports that are n...

Exploit for Unprotected Alternate Channel in Kubernetes

Overview CVE-2020-8558 is a Kubernetes venerability which was...

Localhost Boundary Bypass

kubernetes is vulnerable to localhost boundary bypass. Due to insecure API Server's default port setting, TCP and UDP services on the nodes which are bound to 127.0.0.1 are reachable by adjacent hosts or by containers running on the same node as the service...

How To Protect Your Kubernetes Cluster with Wallarm – Running in Production Mode – part 3 of 3

The previous two blog articles in this series describe how to set up Wallarm Ingress controller and configure it so that it can properly allow or block traffic from trusted or suspicious/malicious IP addresses. This is essential to the functionality of Wallarm’s Ingress controller but it isn’t...

How To Protect Your Kubernetes Cluster with Wallarm – Running in Production Mode – part 3 of 3

The previous two blog articles in this series describe how to set up Wallarm Ingress controller and configure it so that it can properly allow or block traffic from trusted or suspicious/malicious IP addresses. This is essential to the functionality of Wallarm’s Ingress controller but it isn’t...

kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service

A flaw was found kubernetes. The parsing of YAML manifests by the Kubernetes API server could lead to a denial-of-service attack leaving it vulnerable to an instance of a "billion laughs" attack. The highest threat from this vulnerability is to system availability...

kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service

A flaw was found kubernetes. The parsing of YAML manifests by the Kubernetes API server could lead to a denial-of-service attack leaving it vulnerable to an instance of a "billion laughs" attack. The highest threat from this vulnerability is to system availability...