CVE-2018-8734

CRITICAL

Nagios XI 5.2.0-5.4.12 - SQL Injection via selInfoKey1 Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2018-8734. PoCs published by Metasploit, Jared Arave, Francesco Oddo, wvu, including Metasploit module exploits/linux/http/nagios_xi_chained_rce.

AI-analyzed exploit summary This Metasploit module exploits multiple vulnerabilities in Nagios XI (CVE-2018-8733, CVE-2018-8734, CVE-2018-8735, CVE-2018-8736) to achieve remote root access via SQL injection, API key enumeration, and command injection.

Description

SQL injection vulnerability in the core config manager in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execute arbitrary SQL commands via the selInfoKey1 parameter.

Exploits (4)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotelinux
https://www.exploit-db.com/exploits/44969

This Metasploit module exploits multiple vulnerabilities in Nagios XI (CVE-2018-8733, CVE-2018-8734, CVE-2018-8735, CVE-2018-8736) to achieve remote root access via SQL injection, API key enumeration, and command injection.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Nagios XI 5.2.6-5.4.12
No auth needed
Prerequisites: Network access to Nagios XI web interface · Vulnerable version of Nagios XI
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Jared Arave · pythonwebappsphp
https://www.exploit-db.com/exploits/44560

This exploit chains multiple vulnerabilities (CVE-2018-8733, CVE-2018-8734, CVE-2018-8735, CVE-2018-8736) in Nagios XI to achieve remote root access. It starts by changing the database user to root, extracts API keys via SQL injection, adds an administrative user, and executes a reverse shell or custom command.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Nagios XI versions 5.2.[6-9], 5.3, 5.4
No auth needed
Prerequisites: Network access to the target Nagios XI instance · Nagios XI version 5.2.[6-9], 5.3, or 5.4
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by Francesco Oddo, wvu · rubypocunix
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/nagios_xi_chained_rce.rb

This Metasploit module exploits a chain of vulnerabilities (SQLi, auth bypass, file upload, command injection, and privilege escalation) in Nagios XI <= 5.2.7 to achieve remote code execution as root. It demonstrates a full exploit chain with clear technical implementation.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Nagios XI <= 5.2.7
No auth needed
Prerequisites: Network access to the Nagios XI server · Default or known user ID in the database
devstral-2 · analyzed Feb 19, 2026 Full analysis →
metasploit WORKING POC MANUAL
by Cale Smith, Benny Husted, Jared Arave · rubypoclinux
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/nagios_xi_chained_rce_2_electric_boogaloo.rb

This Metasploit module exploits multiple vulnerabilities in Nagios XI (5.2.6-5.4.12) to achieve remote root access via SQL injection, API key enumeration, and command injection.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Nagios XI 5.2.6-5.4.12
No auth needed
Prerequisites: Network access to Nagios XI web interface · Vulnerable version of Nagios XI
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44560/
Release Notes, Vendor Advisory x_refsource_misc
https://www.nagios.com/downloads/nagios-xi/change-log/
Exploit, Technical Description, Third Party Advisory x_refsource_misc
https://blog.redactedsec.net/exploits/2018/04/26/nagios.html
Release Notes, Vendor Advisory x_refsource_misc
https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44969/

Scores

CVSS v3 9.8
EPSS 0.7902
EPSS Percentile 99.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-89
Status published
Products (1)
nagios/nagios_xi 5.2.0 - 5.4.13
Published Apr 18, 2018
Tracked Since Feb 18, 2026