RCE in Nagios Nagios_xi

CVE-2020-35578

An issue was discovered in the Manage Plugins page in Nagios XI before 5.8.0. Because the line-ending conversion feature is mishandled during a plugin upload, a remote, authenticated admin user can execute operating-system commands.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.819 (99.6th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-35578?
CVE-2020-35578 is a high-severity vulnerability in Nagios Nagios_xi, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-01-13.
How severe is CVE-2020-35578?
High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2020-35578 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.