USN-5527-1: Checkmk vulnerabilities

Releases

• Ubuntu 18.04 ESM

Packages

• check-mk - general purpose monitoring plugin for retrieving data

Details

It was discovered that Checkmk incorrectly handled authentication. An attacker
could possibly use this issue to cause a race condition leading to information
disclosure. (CVE-2017-14955)

It was discovered that Checkmk incorrectly handled certain inputs. An attacker
could use these cross-site scripting issues to inject arbitrary html or
javascript code to obtain sensitive information including user information,
session cookies and valid credentials. (CVE-2017-9781, CVE-2021-36563,
CVE-2021-40906, CVE-2022-24565)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04

• check-mk-multisite - 1.2.8p16-1ubuntu0.2
• check-mk-server - 1.2.8p16-1ubuntu0.2
• check-mk-livestatus - 1.2.8p16-1ubuntu0.2

In general, a standard system update will make all the necessary changes.

References

• CVE-2021-36563
• CVE-2022-24565
• CVE-2017-9781
• CVE-2017-14955
• CVE-2021-40906

Related notices

• USN-5527-2: check-mk-livestatus, check-mk-config-icinga, check-mk-doc, check-mk-server, check-mk-config-nagios3, check-mk-agent, check-mk, check-mk-multisite, check-mk-agent-logwatch