RCE in Nagios Xi

CVE-2020-5791

Improper neutralization of special elements used in an OS command in Nagios XI 5.7.3 allows a remote, authenticated admin user to execute operating system commands with the privileges of the apache user.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.786 (99.6th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-5791: held from 0.786 to 0.786.

EPSS over last 30 days · oldest: 0.786 · newest: 0.786 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-5791?
CVE-2020-5791 is a high-severity vulnerability in Nagios Xi, classified under OS Command Injection. CVSS score: 7.2/10. Published 2020-10-20.
How severe is CVE-2020-5791?
High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2020-5791 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.