CVE-2021-40343
7.8 HIGHAn issue was discovered in Nagios XI 5.8.5
Published: 2021-10-26 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-732
Affected products
| Vendor | Product |
|---|---|
| nagios | nagios_xi |
Description
An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40343
- [Vendor advisory]https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
- [Other]https://synacktiv.com
- [Exploit reference]https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdf
- [Vendor advisory]https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
- [Other]https://synacktiv.com
- [Exploit reference]https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdf
Related CVEs
Same vendor
- CVE-2021-40345 — An issue was discovered in Nagios XI 5.8.5 (7.2 HIGH)
- CVE-2021-40344 — An issue was discovered in Nagios XI 5.8.5 (7.2 HIGH)
- CVE-2021-38156 — In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard (5.4 MEDIUM)
- CVE-2021-3277 — Nagios XI 5.7.5 and earlier allows authenticated admins to upload arbitrary files due to improper validation of the rename functionality ... (7.2 HIGH)
- CVE-2021-3273 — Nagios XI below 5.7 is affected by code injection in the /nagiosxi/admin/graphtemplates.php component (7.2 HIGH)
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