Multiple vulnerabilities in Nagios XI

Published: 2019-06-19 | Updated: 2020-07-17

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-17146 CVE-2018-17148
CWE-ID	CWE-79 CWE-284
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Nagios XI Server applications / Other server solutions
Vendor	nagios.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU31038

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17146

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. The vulnerability allows an attacker to execute arbitrary JavaScript code within the auto login admin management page.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 5.5.4.

Vulnerable software versions

Nagios XI: 5.5.0 - 5.5.3

External links

http://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper access control

EUVDB-ID: #VU31039

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17148

CWE-ID: CWE-284 - Improper Access Control