CVE-2021-43584: nagios cross XSS — Exploit

Description

DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.

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CVSS v3.1 Score

4.8

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
nagios	nagios_cross_platform_agent	< 2.4.0

References

Exploits

https://github.com/NagiosEnterprises/ncpa/issues/830 https://github.com/NagiosEnterprises/ncpa/issues/830

Frequently Asked Questions

What is CVE-2021-43584? +

DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2021-43584? +

CVE-2021-43584 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-43584? +

CVE-2021-43584 affects products from nagios, specifically: nagios_cross_platform_agent. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-43584? +

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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CVE-2021-43584