CVE-2020-28900

Nagios XI / Fusion Privilege Escalation / Cross Site Scripting / Code Execution

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to an untrusted update package to upgrade_to_latest.sh.

Una Comprobación Insuficiente de la Autenticidad de los Datos en Nagios Fusion versiones 4.1.8 y anteriores y Nagios XI versiones 5.7.5 y anteriores, permite la ampliación de privilegios o una ejecución de código como root por medio de vectores relacionados con un paquete de actualización que no es confiable para upgrade_to_latest.sh

Skylight Cyber has identified a total of 13 vulnerabilities in Nagios XI and Nagios Fusion servers. These include remote code execution, cross site scripting, privilege escalation, and more.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-11-17 CVE Reserved
2021-05-24 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-10-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-345: Insufficient Verification of Data Authenticity

CAPEC

References (3)

URL	Tag	Source
http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html	Third Party Advisory

URL	Date	SRC
https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.nagios.com/downloads/nagios-xi/change-log	2021-05-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nagios Search vendor "Nagios"		Fusion Search vendor "Nagios" for product "Fusion"				<= 4.1.8 Search vendor "Nagios" for product "Fusion" and version " <= 4.1.8"		-		Affected
Nagios Search vendor "Nagios"		Nagios Xi Search vendor "Nagios" for product "Nagios Xi"				<= 5.7.5 Search vendor "Nagios" for product "Nagios Xi" and version " <= 5.7.5"		-		Affected