CVE-2021-47700: nagios xi (CVSS 7.8)

Description

Nagios XI versions prior to 5.8.7 used a temporary directory for Highcharts exports with overly permissive ownership/permissions under the Apache user. Local or co-hosted processes could read/overwrite export artifacts or manipulate paths, risking disclosure or tampering and potential code execution depending on deployment.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-250 CWE-250

Affected Products

Vendor	Product	Versions
nagios	nagios_xi	< 5.8.7

References

Other References

https://www.nagios.com/changelog/nagios-xi/ https://www.vulncheck.com/advisories/nagios-xi-insecure-permissions-on-highcharts-temporary-directory

Frequently Asked Questions

What is CVE-2021-47700? +

Nagios XI versions prior to 5.8.7 used a temporary directory for Highcharts exports with overly permissive ownership/permissions under the Apache user. Local or co-hosted processes could read/overwrite export artifacts or manipulate paths, risking disclosure or tampering and potential code execution depending on deployment. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-47700? +

CVE-2021-47700 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2021-47700? +

CVE-2021-47700 affects products from nagios, specifically: nagios_xi. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-47700? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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