Objective: Compromise Application via Envoy Exploitation
[CRITICAL NODE] Compromise Application via Envoy Exploitation [CRITICAL NODE] ├───[AND] [HIGH-RISK PATH] Exploit Envoy Misconfiguration [CRITICAL NODE] │ ├───[AND] [HIGH-RISK PATH] Exploit Insecure Authentication/Authorization Configuration [CRITICAL NODE] │ │ └───[AND] Gain Unauthorized Access to Application Resources [CRITICAL NODE] │ ├───[AND] [HIGH-RISK PATH] Exploit Insecure TLS/SSL Configuration │ │ └───[AND] Intercept or Modify Sensitive Data in Transit [CRITICAL NODE] │ ├───[AND] Exploit Insecure Logging/Monitoring Configuration │ │ └───[AND] Extract Sensitive Information (e.g., API keys, user data) [CRITICAL NODE] │ ├───[AND] [HIGH-RISK PATH] Exploit Denial of Service (DoS) via Configuration [CRITICAL NODE] │ │ └───[AND] Cause Application Unavailability [CRITICAL NODE] │ ├───[AND] Exploit Insecure Routing Configuration │ │ └───[AND] Access Sensitive Internal Services or Data [CRITICAL NODE] │ └───[AND] [HIGH-RISK PATH] Exploit Exposure of Admin Interface (if enabled insecurely) [CRITICAL NODE] │ └───[AND] Gain Control over Envoy Configuration and potentially the Application [CRITICAL NODE]
Attack Tree Path: [CRITICAL NODE] Compromise Application via Envoy Exploitation:
- Description: The ultimate goal of the attacker. Success means gaining unauthorized access to application data, functionality, or causing disruption.
- Attack Vectors (Leading to this goal via High-Risk Paths):
- Exploiting Envoy Misconfiguration
- Exploiting Envoy Weakness (While not explicitly marked as High-Risk Path in this sub-tree for brevity, it's implicitly a path to compromise)
Attack Tree Path: [HIGH-RISK PATH] Exploit Envoy Misconfiguration [CRITICAL NODE]:
- Description: Leveraging incorrect or insecure configuration settings in Envoy to compromise the application. Misconfiguration is a common and often easily exploitable vulnerability.
- Attack Vectors (Sub-Nodes):
- Exploit Insecure Authentication/Authorization Configuration
- Exploit Insecure TLS/SSL Configuration
- Exploit Insecure Logging/Monitoring Configuration
- Exploit Denial of Service (DoS) via Configuration
- Exploit Insecure Routing Configuration
- Exploit Exposure of Admin Interface (if enabled insecurely)
Attack Tree Path: [HIGH-RISK PATH] Exploit Insecure Authentication/Authorization Configuration [CRITICAL NODE]:
- Description: Bypassing or weakening authentication and authorization mechanisms configured in Envoy. This allows unauthorized access to protected resources.
- Attack Vectors (Sub-Nodes):
- Identify Weak or Missing Authentication Mechanisms (e.g., no authentication, basic auth without HTTPS, weak JWT validation).
- Bypass Authentication/Authorization:
- Credential Stuffing/Brute-force (if basic auth is used insecurely).
- Exploiting Logic Flaws in Auth Filters (if custom filters are used and have vulnerabilities).
- Session Hijacking (if session management is weak or insecure).
- Gain Unauthorized Access to Application Resources: Accessing APIs, data, or functionalities that should be restricted.
Attack Tree Path: [CRITICAL NODE] Gain Unauthorized Access to Application Resources:
- Description: The direct impact of successful authentication/authorization bypass. Attackers can now interact with the application as if they were authorized users.
- Impact: Data breaches, unauthorized actions, manipulation of application functionality.
Attack Tree Path: [HIGH-RISK PATH] Exploit Insecure TLS/SSL Configuration:
- Description: Exploiting weaknesses in the TLS/SSL configuration of Envoy to intercept or manipulate encrypted traffic.
- Attack Vectors (Sub-Nodes):
- Identify Weak TLS Ciphers or Protocols (e.g., allowing outdated protocols like SSLv3 or weak ciphers).
- Perform Man-in-the-Middle (MitM) Attack:
- Gain Network Position to Intercept Traffic (e.g., ARP poisoning, DNS spoofing, compromised network infrastructure).
- Downgrade TLS Connection (forcing the use of weak ciphers if allowed).
- Intercept or Modify Sensitive Data in Transit: Stealing or altering data exchanged between clients and the application.
Attack Tree Path: [CRITICAL NODE] Intercept or Modify Sensitive Data in Transit:
- Description: The direct impact of a successful MitM attack due to weak TLS configuration.
- Impact: Data breaches, data integrity compromise, session hijacking.
Attack Tree Path: Exploit Insecure Logging/Monitoring Configuration:
- Description: Leveraging misconfigured logging to access sensitive information inadvertently logged by Envoy.
- Attack Vectors (Sub-Nodes):
- Identify Excessive or Sensitive Data Logging (e.g., logging request bodies, API keys, user credentials).
- Access Logs Containing Sensitive Information: Gaining unauthorized access to log files or log management systems.
- Extract Sensitive Information (e.g., API keys, user data): Mining logs for valuable secrets or user data.
- Description: The direct impact of insecure logging practices. Sensitive data is exposed through logs.
- Impact: Information disclosure, credential compromise, privacy violations.
Attack Tree Path: [HIGH-RISK PATH] Exploit Denial of Service (DoS) via Configuration [CRITICAL NODE]:
- Description: Causing a denial of service by exploiting misconfigurations in Envoy's DoS protection mechanisms (or lack thereof).
- Attack Vectors (Sub-Nodes):
- Identify Misconfigured Rate Limiting, Circuit Breaking, or Resource Limits (e.g., overly permissive rate limits, disabled circuit breakers, insufficient resource allocation).
- Craft Requests to Exhaust Resources:
- High Volume of Requests (flooding Envoy with requests).
- Resource-Intensive Requests (sending requests that consume excessive CPU, memory, or network bandwidth).
- Cause Application Unavailability: Making the application inaccessible to legitimate users.
Attack Tree Path: [CRITICAL NODE] Cause Application Unavailability:
- Description: The direct impact of a successful DoS attack. The application becomes unusable.
- Impact: Service disruption, business impact, reputational damage.
Attack Tree Path: Exploit Insecure Routing Configuration:
- Description: Manipulating or exploiting flaws in Envoy's routing configuration to access unintended backend services or data.
- Attack Vectors (Sub-Nodes):
- Identify Misconfigured Routes or Upstream Clusters (e.g., overly broad routing rules, incorrect upstream definitions).
- Manipulate Routing to Access Unintended Backends:
- Request Smuggling/Spoofing (crafting requests that bypass routing rules or are misinterpreted by Envoy).
- Access Sensitive Internal Services or Data: Gaining access to internal APIs, databases, or other services that should not be publicly accessible.
Attack Tree Path: [CRITICAL NODE] Access Sensitive Internal Services or Data:
- Description: The direct impact of insecure routing configuration exploitation. Attackers gain access to internal, protected resources.
- Impact: Data breaches, internal system compromise, privilege escalation.
Attack Tree Path: [HIGH-RISK PATH] Exploit Exposure of Admin Interface (if enabled insecurely) [CRITICAL NODE]:
- Description: Compromising the Envoy admin interface if it is exposed and not properly secured. The admin interface provides powerful control over Envoy.
- Attack Vectors (Sub-Nodes):
- Identify Exposed Admin Interface (e.g., default port 9901, publicly accessible without authentication).
- Bypass Admin Interface Authentication (if any):
- Default Credentials (using default username/password if not changed).
- Exploiting Vulnerabilities in Admin Interface (if any vulnerabilities exist in the admin interface itself).
- Gain Control over Envoy Configuration and potentially the Application: Modifying Envoy configuration to redirect traffic, inject malicious filters, or disrupt service.
Attack Tree Path: [CRITICAL NODE] Gain Control over Envoy Configuration and potentially the Application:
- Description: The most severe impact of compromising the admin interface. Attackers have full control over Envoy and can potentially pivot to compromise the backend application.
- Impact: Full system compromise, data breaches, complete service disruption, long-term persistence.