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ISC BIND Control Channel Denial of Service Vulnerability (Linux)

Information

Severity

Severity

Low

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

3.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

3 years ago

Summary

The host is installed with ISC BIND and is prone to denial of service vulnerability.

Insight

Insight

The flaw exists due to a feature in named which allows operators to issue commands to a running server by communicating with the server process over a control channel, using a utility program such as rndc.

Affected Software

Affected Software

ISC BIND 9.9.9 through 9.9.9-P7, 9.9.10b1 through 9.9.10rc2, 9.10.4 through 9.10.4-P7, 9.10.5b1 through 9.10.5rc2, 9.11.0 through 9.11.0-P4, 9.11.1b1 through 9.11.1rc2, 9.9.9-S1 through 9.9.9-S9 on Linux.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to ISC BIND version 9.9.9-P8 or 9.10.4-P8 or 9.11.0-P5 or 9.9.9-S10 or 9.9.10rc3 or 9.10.5rc3 or 9.11.1rc3 or later on Linux.

Common Vulnerabilities and Exposures (CVE)

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1. Download Multipass

sudo snap install multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

3. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. If you don’t have it already, install Brew. Then, to install Multipass simply execute:

brew install --cask multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

2. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. Download the installer for Windows

Note: You need Windows 10 Pro/Enterprise/Education v 1803 or later, or any Windows 10 with VirtualBox

2. Ensure your network is private

Make sure your local network is designated as private, otherwise Windows prevents Multipass from starting.

3. Run the installer

You need to allow the installer to gain Administrator privileges.

4. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04

5. Log into the multipass instance

multipass shell mageni

6. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash