CVE-2022-29271 — In Nagios XI through 5

In Nagios XI through 5.8.5, a read-only Nagios user (due to an incorrect permission check) is able to schedule downtime for any host/services. This allows an attacker to permanently disable all monitoring checks.

01What is this vulnerability?

In Nagios XI through 5.8.5, a read-only Nagios user (due to an incorrect permission check) is able to schedule downtime for any host/services. This allows an attacker to permanently disable all monitoring checks.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-06-29T00:58:46.000Z
• Last modified: 2024-08-03T06:17:54.507Z

09References

• www.nagios.com — https://www.nagios.com/downloads/nagios-xi/change-log/
• assets.nagios.com — https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
• github.com — https://github.com/4LPH4-NL/CVEs
• github.com — https://github.com/sT0wn-nl/CVEs/blob/master/README.md#nagios-xi