kubernetes: Node disk DOS by writing to container /etc/hosts

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...

CVE-2020-8557

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral...

DEBIAN-CVE-2020-8557

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral...

CVE-2020-8557

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral...

CVE-2020-8557

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral...

UBUNTU-CVE-2020-8557

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral...

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...

UBUNTU-CVE-2020-8903

A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using their membership to the "adm" group, users with this role are able to read the DHCP XID from th...

Linux/x86 /etc/hosts Mapping Add Polymorphic Shellcode

102 bytes small Linux/x86 add map in /etc/hosts file polymorphic shellcode. Title: Linux/x86 - Add map in /etc/hosts file polymorphic shellcode 102 bytes Author: Xenofon Vassilakopoulos Date: 2020-06-15 Tested on: Linux kali 5.3.0-kali2-686-pae 1 SMP Debian 5.3.9-3kali1 2019-11-20 i686 GNU/Linux...

Linux/x86 /etc/hosts Mapping Add Polymorphic Shellcode (102 bytes)

Title: Linux/x86 - Add map in /etc/hosts file polymorphic shellcode 102 bytes Author: Xenofon Vassilakopoulos Tested on: Linux kali 5.3.0-kali2-686-pae 1 SMP Debian 5.3.9-3kali1 2019-11-20 i686 GNU/Linux Architecture: i686 GNU/Linux Shellcode Length: 102 bytes Original shellcode:...

Google Invisible RECAPTCHA 3 Spoof Bypass Exploit

Exploit for multiple platform in category web applications Exploit Title: Google Invisible RECAPTCHA 3 - Spoof Bypass Vendor Homepage: https://developers.google.com/recaptcha/docs/invisible Exploit Git Repo: https://github.com/matamorphosis/Browser-Exploits/tree/master/RECAPTCHABypass Exploit...

Cloudcheck - Checks Using A Test String If A Cloudflare DNS Bypass Is Possible Using CloudFail

Cloudcheck is made to be used in the same folder as CloudFail. Make sure all files in this repo are in the same folder before using. Also create a empty text file called none.txt in the data folder, that way it doesn't do a subdomain brute when testing. Cloudcheck will automatically change your...

Microsoft Windows - AppX Deployment Service Privilege Escalation

Microsoft Windows - AppX Deployment Service Privilege Escalation This vulnerability allows low privileged users to hijack file that are owned by NT AUTHORITY\SYSTEM by overwriting permissions on the targeted file. Successful exploitation results in "Full Control" permissions for the low privilege...

“For security reasons DTD is prohibited in this XML document” error in Veeam Backup for Microsoft 365

Challenge Interactions with either SharePoint Online or OneDrive for Business within Veeam Backup for Microsoft 365 fail with either of the following errors: For security reasons DTD is prohibited in this XML document Copy Identity Client Runtime Library IDCRL could not look up the realm...

Dell EMC iDRAC Insecure File Permissions Vulnerability

The Dell EMC iDRAC Service Module iSM is a suite of lightweight software from Dell Inc. that runs on servers. The software extends the Integrated Dell EMC Remote Access Controller iDRAC to the host operating system. A security vulnerability exists in the Dell EMC iSM for Linux and XenServer based...

Default credentials

Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, when started, changes the default file permission of the hosts file of the host operating system /etc/hosts to world writable. A malicious low privileged operating system user or process...

CVE-2018-11053

Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, when started, changes the default file permission of the hosts file of the host operating system /etc/hosts to world writable. A malicious low privileged operating system user or process...

CVE-2018-11053 iSM: Dell EMC iDRAC Service Module Improper File Permission Vulnerability

Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, when started, changes the default file permission of the hosts file of the host operating system /etc/hosts to world writable. A malicious low privileged operating system user or process...

hBlock - Improve Your Security And Privacy By Blocking Ads, Tracking And Malware Domains

Improve your security and privacy by blocking ads, tracking and malware domains. What is this for? This POSIX-compliant shell script, designed for Unix-like systems, gets a list of domains that serve ads, tracking scripts and malware from multiple reputable sources and creates a hosts file that...

Block All Domains That Serve Ads, Tracking Scripts and Malware: hBlock

Improve your security and privacy by blocking ads, tracking and malware domains. This POSIX-compliant shell script, designed for Unix-like systems, gets a list of domains that serve ads, tracking scripts and malware from multiple reputable sources and creates a hosts file that prevents your syste...