UBUNTU-CVE-2021-36563

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Source
https://ubuntu.com/security/CVE-2021-36563
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36563.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36563
Related
Published
2021-07-26T18:15:00Z
Modified
2025-01-13T10:22:35Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

The CheckMK management web console (versions 1.5.0 to 2.0.0) does not sanitise user input in various parameters of the WATO module. This allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts), the XSS payload will be triggered when the user accesses some specific sections of the application. In the same sense a very dangerous potential way would be when an attacker who has the monitor role (not administrator) manages to get a stored XSS to steal the secretAutomation (for the use of the API in administrator mode) and thus be able to create another administrator user who has high privileges on the CheckMK monitoring web console. Another way is that persistent XSS allows an attacker to modify the displayed content or change the victim's information. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session.

References

Affected packages

Ubuntu:Pro:16.04:LTS / check-mk

Package

Name
check-mk
Purl
pkg:deb/ubuntu/check-mk@1.2.6p12-1ubuntu0.16.04.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.2.6p12-1ubuntu0.16.04.1+esm1

Affected versions

1.*

1.2.6p5-1
1.2.6p12-1
1.2.6p12-1ubuntu0.16.04.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent-logwatch"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-icinga"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-nagios3"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-doc"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-livestatus"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-livestatus-dbgsym"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-multisite"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-server"
        }
    ]
}

Ubuntu:18.04:LTS / check-mk

Package

Name
check-mk
Purl
pkg:deb/ubuntu/check-mk@1.2.8p16-1ubuntu0.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.2.8p16-1ubuntu0.2

Affected versions

1.*

1.2.8p16-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-agent"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-agent-logwatch"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-config-icinga"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-doc"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-livestatus"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-livestatus-dbgsym"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-multisite"
        },
        {
            "binary_version": "1.2.8p16-1ubuntu0.2",
            "binary_name": "check-mk-server"
        }
    ]
}