CVE-2021-25296: Nagios XI OS Command Injection

CVE-2021-25296 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-01-18

Nagios XI version 5.7.5 is vulnerable to OS command injection via the windowswmi.inc.php file. The flaw exists due to improper sanitization of authenticated user-controlled input in a single HTTP request, allowing remote attackers to execute arbitrary commands on the server.

Technologies: Nagios XI. Vendors: Nagios.

Quick answers

Is CVE-2021-25296 exploited in the wild?
Yes. CVE-2021-25296 is known to be exploited in the wild, first recorded on 18 January 2022. Treat it as urgent.
How severe is CVE-2021-25296?
Critical severity, with a CVSS score of 8.8, published 18 January 2022.
Which products and versions are affected?
Nagios Nagios XI 5.7.5.
Is there a fix for CVE-2021-25296?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-25296 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-25296?
Check whether you run Nagios XI. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Nagios Nagios XI 5.7.5

Timeline

  • 2021-02-18: disclosed: Initial NIST analysis date
  • 2022-01-18: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-01-18: advisory: Publication date listed in advisory
  • 2022-01-18: exploited: Confirmed exploited in the wild per CISA KEV entry date

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