t1190-exploit-public-facing-application

name	T1190_exploit-public-facing-application
description	Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
category	input-validation
version	18.1
author	cyberstrike-official
tags	["mitre-attack","enterprise","t1190","initial-access","containers","esxi","iaas","linux","macos","network-devices","windows"]
technique_id	T1190
tactic	initial-access
all_tactics	["initial-access"]
platforms	["Containers","ESXi","IaaS","Linux","macOS","Network Devices","Windows"]
mitre_url	https://attack.mitre.org/techniques/T1190
tech_stack	["containers","esxi","cloud","linux","macos","network devices","windows"]
cwe_ids	["CWE-20"]
chains_with	[]
prerequisites	[]
severity_boost	{}

T1190 Exploit Public-Facing Application

High-Level Description

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network. The weakness in the system can be a software bug, a temporary glitch, or a misconfiguration.

Exploited applications are often websites/web servers, but can also include databases (like SQL), standard services (like SMB or SSH), network device administration and management protocols (like SNMP and Smart Install), and any other system with Internet-accessible open sockets. On ESXi infrastructure, adversaries may exploit exposed OpenSLP services; they may alternatively exploit exposed VMware vCenter servers. Depending on the flaw being exploited, this may also involve Exploitation for Defense Evasion or Exploitation for Client Execution.

If an application is hosted on cloud-based infrastructure and/or is containerized, then exploiting it may lead to compromise of the underlying instance or container. This can allow an adversary a path to access the cloud or container APIs (e.g., via the Cloud Instance Metadata API), exploit container host access via Escape to Host, or take advantage of weak identity and access management policies.

Adversaries may also exploit edge network infrastructure and related appliances, specifically targeting devices that do not support robust host-based defenses.

For websites and databases, the OWASP top 10 and CWE top 25 highlight the most common web-based vulnerabilities.

Kill Chain Phase

• Initial Access (TA0001)

Platforms: Containers, ESXi, IaaS, Linux, macOS, Network Devices, Windows

What to Check

• Identify if Exploit Public-Facing Application technique is applicable to target environment
• Check Containers systems for indicators of Exploit Public-Facing Application
• Check ESXi systems for indicators of Exploit Public-Facing Application
• Check IaaS systems for indicators of Exploit Public-Facing Application
• Verify mitigations are bypassed or absent (8 known mitigations)
• Assess detection coverage (1 detection strategies)

How to Test

Manual Testing

1. Identify Attack Surface: Determine if the target environment is susceptible to Exploit Public-Facing Application by examining the target platforms (Containers, ESXi, IaaS).