CVE-2020-28906

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Incorrect File Permissions in Nagios XI 5.7.5 and earlier and Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root. Low-privileged users are able to modify files that are included (aka sourced) by scripts executed by root.

References

https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/

https://www.nagios.com/downloads/nagios-xi/change-log/

http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html

Details

Source: MITRE

Published: 2021-05-24

Updated: 2021-05-28

Type: CWE-276

Risk Information

CVSS v2

Base Score: 9

Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8

Severity: HIGH

CVSS v3

Base Score: 8.8

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

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:* versions up to 4.1.8 (inclusive)

cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* versions up to 5.7.5 (inclusive)

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
150055Nagios XI < 5.7.5 Multiple VulnerabilitiesNessusCGI abuses
high
150054Nagios Fusion < 4.1.9 Multiple VulnerabilitiesNessusCGI abuses
critical