Which products and versions are affected by CVE-2021-40345?

Affected: Nagios Xi versions 5.8.5. The full list is in the CVE brief.

Is CVE-2021-40345 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-40345 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-40345?

No public exploit code is known.

Is there a fix for CVE-2021-40345?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2021-40345 be patched?

Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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CVE-2021-40345Nagios Xi Command Injection

In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files.

Published Oct 27, 2021 · Updated Aug 4, 2024

Key Facts

Patch in the next maintenance window

CVE-2021-40345 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Nagios Xi.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 23% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

7.2

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

EPSS (30-day exploit likelihood)

23%

Higher than 97.7% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

39/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

Description

An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Nagios XiNagios	5.8.5	n/a

Timeline

Publicly disclosed
Oct 27, 2021
Last updated
Aug 4, 2024

Weakness Type

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References

advisoryweb.nvd.nist.gov · vuln
advisoryassets.nagios.com · CHANGES-5.TXT
advisoryUSOM advisory
advisoryweb.nvd.nist.gov · vuln
advisoryweb.nvd.nist.gov · vuln

3 more references in the full CVE brief

FAQ

Common Questions.

An issue was discovered in Nagios XI 5.8.5.
Affected: Nagios Xi versions 5.8.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Is CVE-2021-40345 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.