CVE-2023-28354

CRITICAL

Opsview Monitor Agent 6.8 - Unauthenticated Remote Code Execution via NRPE Plugin Command Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-28354. PoCs published by stormfleet.

AI-analyzed exploit summary The repository provides a functional exploit for CVE-2023-28354, demonstrating how an unauthenticated attacker can execute arbitrary commands on Opsview Monitor Agent 6.8 via NRPE handlers due to insecure configuration allowing command-line escape sequences.

Description

An issue was discovered in Opsview Monitor Agent 6.8. An unauthenticated remote attacker can call check_nrpe against affected targets, specifying known NRPE plugins, which in default installations are configured to accept command control characters and pass them to command-line interpreters for NRPE plugin execution. This allows the attacker to escape NRPE plugin execution and execute commands remotely on the target as NT_AUTHORITY\SYSTEM.

Exploits (1)

nomisec WORKING POC
by stormfleet · poc
https://github.com/stormfleet/CVE-2023-28354

The repository provides a functional exploit for CVE-2023-28354, demonstrating how an unauthenticated attacker can execute arbitrary commands on Opsview Monitor Agent 6.8 via NRPE handlers due to insecure configuration allowing command-line escape sequences.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Opsview Monitor Agent 6.8
No auth needed
Prerequisites: Network access to the vulnerable Opsview Agent service · Nagios check_nrpe utility or similar NRPE client
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.0116
EPSS Percentile 63.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-94
Status published
Published Jan 09, 2025
Tracked Since Feb 18, 2026