Attacker Value

Unknown

CVE-2021-36342

CVE ID

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Advisory

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Mitigation

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Government or Industry Alert

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Miscellaneous

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Attacker Value

Unknown

(0 users assessed)

Exploitability

Unknown

(0 users assessed)

User Interaction

CVE-2021-36342

Disclosure Date: January 12, 2021 •

(Last updated October 07, 2023) ▾

CVE-2021-36342 CVSS v3 Base Score: 6.7

MITRE ATT&CK Log in to add MITRE ATT&CK tag

Add MITRE ATT&CK tactics and techniques that apply to this CVE.

MITRE ATT&CK

Select the MITRE ATT&CK Tactics that apply to this CVE

Collection

Select any Techniques used:

Data from Local System

Data from Removable Media

Data from Network Shared Drive

Input Capture

Input Capture: Keylogging

Input Capture: GUI Input Capture

Input Capture: Web Portal Capture

Input Capture: Credential API Hooking

Data Staged

Data Staged: Local Data Staging

Data Staged: Remote Data Staging

Screen Capture

Email Collection

Email Collection: Local Email Collection

Email Collection: Remote Email Collection

Email Collection: Email Forwarding Rule

Clipboard Data

Automated Collection

Audio Capture

Video Capture

Man in the Browser

Data from Information Repositories

Data from Information Repositories: Confluence

Data from Information Repositories: Sharepoint

Data from Cloud Storage Object

Man-in-the-Middle

Man-in-the-Middle: LLMNR/NBT-NS Poisoning and SMB Relay

Archive Collected Data

Archive Collected Data: Archive via Utility

Archive Collected Data: Archive via Library

Archive Collected Data: Archive via Custom Method

Command and Control

Select any Techniques used:

Data Obfuscation

Data Obfuscation: Junk Data

Data Obfuscation: Steganography

Data Obfuscation: Protocol Impersonation

Fallback Channels

Application Layer Protocol

Application Layer Protocol: Web Protocols

Application Layer Protocol: File Transfer Protocols

Application Layer Protocol: Mail Protocols

Application Layer Protocol: DNS

Proxy

Proxy: Internal Proxy

Proxy: External Proxy

Proxy: Multi-hop Proxy

Proxy: Domain Fronting

Communication Through Removable Media

Non-Application Layer Protocol

Web Service

Web Service: Dead Drop Resolver

Web Service: Bidirectional Communication

Web Service: One-Way Communication

Multi-Stage Channels

Ingress Tool Transfer

Data Encoding

Data Encoding: Standard Encoding

Data Encoding: Non-Standard Encoding

Traffic Signaling

Traffic Signaling: Port Knocking

Remote Access Software

Dynamic Resolution

Dynamic Resolution: Fast Flux DNS

Dynamic Resolution: Domain Generation Algorithms

Dynamic Resolution: DNS Calculation

Non-Standard Port

Protocol Tunneling

Encrypted Channel

Encrypted Channel: Symmetric Cryptography

Encrypted Channel: Asymmetric Cryptography

Credential Access

Select any Techniques used:

OS Credential Dumping

OS Credential Dumping: LSASS Memory

OS Credential Dumping: Security Account Manager

OS Credential Dumping: NTDS

OS Credential Dumping: LSA Secrets

OS Credential Dumping: Cached Domain Credentials

OS Credential Dumping: DCSync

OS Credential Dumping: Proc Filesystem

OS Credential Dumping: /etc/passwd and /etc/shadow

Network Sniffing

Input Capture

Input Capture: Keylogging

Input Capture: GUI Input Capture

Input Capture: Web Portal Capture

Input Capture: Credential API Hooking

Brute Force

Brute Force: Password Guessing

Brute Force: Password Cracking

Brute Force: Password Spraying

Brute Force: Credential Stuffing

Two-Factor Authentication Interception

Forced Authentication

Exploitation for Credential Access

Steal Application Access Token

Steal Web Session Cookie

Unsecured Credentials

Unsecured Credentials: Credentials In Files

Unsecured Credentials: Credentials in Registry

Unsecured Credentials: Bash History

Unsecured Credentials: Private Keys

Unsecured Credentials: Cloud Instance Metadata API

Unsecured Credentials: Group Policy Preferences

Credentials from Password Stores

Credentials from Password Stores: Keychain

Credentials from Password Stores: Securityd Memory

Credentials from Password Stores: Credentials from Web Browsers

Modify Authentication Process

Modify Authentication Process: Domain Controller Authentication

Modify Authentication Process: Password Filter DLL

Modify Authentication Process: Pluggable Authentication Modules

Man-in-the-Middle

Man-in-the-Middle: LLMNR/NBT-NS Poisoning and SMB Relay

Steal or Forge Kerberos Tickets

Steal or Forge Kerberos Tickets: Golden Ticket

Steal or Forge Kerberos Tickets: Silver Ticket

Steal or Forge Kerberos Tickets: Kerberoasting

Defense Evasion

Select any Techniques used:

Direct Volume Access

Rootkit

Obfuscated Files or Information

Obfuscated Files or Information: Binary Padding

Obfuscated Files or Information: Software Packing

Obfuscated Files or Information: Steganography

Obfuscated Files or Information: Compile After Delivery

Obfuscated Files or Information: Indicator Removal from Tools

Masquerading

Masquerading: Invalid Code Signature

Masquerading: Right-to-Left Override

Masquerading: Rename System Utilities

Masquerading: Masquerade Task or Service

Masquerading: Match Legitimate Name or Location

Masquerading: Space after Filename

Process Injection

Process Injection: Dynamic-link Library Injection

Process Injection: Portable Executable Injection

Process Injection: Thread Execution Hijacking

Process Injection: Asynchronous Procedure Call

Process Injection: Thread Local Storage

Process Injection: Ptrace System Calls

Process Injection: Proc Memory

Process Injection: Extra Window Memory Injection

Process Injection: Process Hollowing

Process Injection: Process Doppelgänging

Process Injection: VDSO Hijacking

Indicator Removal on Host

Indicator Removal on Host: Clear Windows Event Logs

Indicator Removal on Host: Clear Linux or Mac System Logs

Indicator Removal on Host: Clear Command History

Indicator Removal on Host: File Deletion

Indicator Removal on Host: Network Share Connection Removal

Indicator Removal on Host: Timestomp

Valid Accounts

Valid Accounts: Default Accounts

Valid Accounts: Domain Accounts

Valid Accounts: Local Accounts

Valid Accounts: Cloud Accounts

Modify Registry

Trusted Developer Utilities Proxy Execution

Trusted Developer Utilities Proxy Execution: MSBuild

Access Token Manipulation

Access Token Manipulation: Token Impersonation/Theft

Access Token Manipulation: Create Process with Token

Access Token Manipulation: Make and Impersonate Token

Access Token Manipulation: Parent PID Spoofing

Access Token Manipulation: SID-History Injection

Deobfuscate/Decode Files or Information

BITS Jobs

Indirect Command Execution

Traffic Signaling

Traffic Signaling: Port Knocking

Rogue Domain Controller

Exploitation for Defense Evasion

Signed Script Proxy Execution

Signed Script Proxy Execution: PubPrn

Signed Binary Proxy Execution

Signed Binary Proxy Execution: Compiled HTML File

Signed Binary Proxy Execution: Control Panel

Signed Binary Proxy Execution: CMSTP

Signed Binary Proxy Execution: InstallUtil

Signed Binary Proxy Execution: Mshta

Signed Binary Proxy Execution: Msiexec

Signed Binary Proxy Execution: Odbcconf

Signed Binary Proxy Execution: Regsvcs/Regasm

Signed Binary Proxy Execution: Regsvr32

Signed Binary Proxy Execution: Rundll32

XSL Script Processing

Template Injection

File and Directory Permissions Modification

File and Directory Permissions Modification: Windows File and Directory Permissions Modification

File and Directory Permissions Modification: Linux and Mac File and Directory Permissions Modification

Execution Guardrails

Execution Guardrails: Environmental Keying

Group Policy Modification

Virtualization/Sandbox Evasion

Virtualization/Sandbox Evasion: System Checks

Virtualization/Sandbox Evasion: User Activity Based Checks

Virtualization/Sandbox Evasion: Time Based Evasion

Unused/Unsupported Cloud Regions

Pre-OS Boot

Pre-OS Boot: System Firmware

Pre-OS Boot: Component Firmware

Pre-OS Boot: Bootkit

Abuse Elevation Control Mechanism

Abuse Elevation Control Mechanism: Setuid and Setgid

Abuse Elevation Control Mechanism: Bypass User Access Control

Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Abuse Elevation Control Mechanism: Elevated Execution with Prompt

Use Alternate Authentication Material

Use Alternate Authentication Material: Application Access Token

Use Alternate Authentication Material: Pass the Hash

Use Alternate Authentication Material: Pass the Ticket

Use Alternate Authentication Material: Web Session Cookie

Subvert Trust Controls

Subvert Trust Controls: Gatekeeper Bypass

Subvert Trust Controls: Code Signing

Subvert Trust Controls: SIP and Trust Provider Hijacking

Subvert Trust Controls: Install Root Certificate

Modify Authentication Process

Modify Authentication Process: Domain Controller Authentication

Modify Authentication Process: Password Filter DLL

Modify Authentication Process: Pluggable Authentication Modules

Impair Defenses

Impair Defenses: Disable or Modify Tools

Impair Defenses: Disable Windows Event Logging

Impair Defenses: HISTCONTROL

Impair Defenses: Disable or Modify System Firewall

Impair Defenses: Indicator Blocking

Impair Defenses: Disable or Modify Cloud Firewall

Hide Artifacts

Hide Artifacts: Hidden Files and Directories

Hide Artifacts: Hidden Users

Hide Artifacts: Hidden Window

Hide Artifacts: NTFS File Attributes

Hide Artifacts: Hidden File System

Hide Artifacts: Run Virtual Instance

Hijack Execution Flow

Hijack Execution Flow: DLL Search Order Hijacking

Hijack Execution Flow: DLL Side-Loading

Hijack Execution Flow: Dylib Hijacking

Hijack Execution Flow: Executable Installer File Permissions Weakness

Hijack Execution Flow: LD_PRELOAD

Hijack Execution Flow: Path Interception by PATH Environment Variable

Hijack Execution Flow: Path Interception by Search Order Hijacking

Hijack Execution Flow: Path Interception by Unquoted Path

Hijack Execution Flow: Services File Permissions Weakness

Hijack Execution Flow: Services Registry Permissions Weakness

Hijack Execution Flow: COR_PROFILER

Modify Cloud Compute Infrastructure

Modify Cloud Compute Infrastructure: Create Snapshot

Modify Cloud Compute Infrastructure: Create Cloud Instance

Modify Cloud Compute Infrastructure: Delete Cloud Instance

Modify Cloud Compute Infrastructure: Revert Cloud Instance

Discovery

Select any Techniques used:

System Service Discovery

Application Window Discovery

Query Registry

System Network Configuration Discovery

Remote System Discovery

System Owner/User Discovery

Network Sniffing

Network Service Scanning

System Network Connections Discovery

Process Discovery

Permission Groups Discovery

Permission Groups Discovery: Local Groups

Permission Groups Discovery: Domain Groups

Permission Groups Discovery: Cloud Groups

System Information Discovery

File and Directory Discovery

Account Discovery

Account Discovery: Local Account

Account Discovery: Domain Account

Account Discovery: Email Account

Account Discovery: Cloud Account

Peripheral Device Discovery

System Time Discovery

Network Share Discovery

Password Policy Discovery

Browser Bookmark Discovery

Domain Trust Discovery

Virtualization/Sandbox Evasion

Virtualization/Sandbox Evasion: System Checks

Virtualization/Sandbox Evasion: User Activity Based Checks

Virtualization/Sandbox Evasion: Time Based Evasion

Software Discovery

Software Discovery: Security Software Discovery

Cloud Service Discovery

Cloud Service Dashboard

Execution

Select any Techniques used:

Windows Management Instrumentation

Scheduled Task/Job

Scheduled Task/Job: At (Linux)

Scheduled Task/Job: At (Windows)

Scheduled Task/Job: Cron

Scheduled Task/Job: Launchd

Scheduled Task/Job: Scheduled Task

Command and Scripting Interpreter

Command and Scripting Interpreter: PowerShell

Command and Scripting Interpreter: AppleScript

Command and Scripting Interpreter: Windows Command Shell

Command and Scripting Interpreter: Unix Shell

Command and Scripting Interpreter: Visual Basic

Command and Scripting Interpreter: Python

Command and Scripting Interpreter: JavaScript/JScript

Software Deployment Tools

Native API

Shared Modules

Exploitation for Client Execution

User Execution

User Execution: Malicious Link

User Execution: Malicious File

Inter-Process Communication

Inter-Process Communication: Component Object Model

Inter-Process Communication: Dynamic Data Exchange

System Services

System Services: Launchctl

System Services: Service Execution

Exfiltration

Select any Techniques used:

Exfiltration Over Other Network Medium

Exfiltration Over Other Network Medium: Exfiltration Over Bluetooth

Automated Exfiltration

Scheduled Transfer

Data Transfer Size Limits

Exfiltration Over C2 Channel

Exfiltration Over Alternative Protocol

Exfiltration Over Alternative Protocol: Exfiltration Over Symmetric Encrypted Non-C2 Protocol

Exfiltration Over Alternative Protocol: Exfiltration Over Asymmetric Encrypted Non-C2 Protocol

Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol

Exfiltration Over Physical Medium

Exfiltration Over Physical Medium: Exfiltration over USB

Transfer Data to Cloud Account

Exfiltration Over Web Service

Exfiltration Over Web Service: Exfiltration to Code Repository

Exfiltration Over Web Service: Exfiltration to Cloud Storage

Impact

Select any Techniques used:

Data Destruction

Data Encrypted for Impact

Service Stop

Inhibit System Recovery

Defacement

Defacement: Internal Defacement

Defacement: External Defacement

Firmware Corruption

Resource Hijacking

Network Denial of Service

Network Denial of Service: Direct Network Flood

Network Denial of Service: Reflection Amplification

Endpoint Denial of Service

Endpoint Denial of Service: OS Exhaustion Flood

Endpoint Denial of Service: Service Exhaustion Flood

Endpoint Denial of Service: Application Exhaustion Flood

Endpoint Denial of Service: Application or System Exploitation

System Shutdown/Reboot

Account Access Removal

Disk Wipe

Disk Wipe: Disk Content Wipe

Disk Wipe: Disk Structure Wipe

Data Manipulation

Data Manipulation: Stored Data Manipulation

Data Manipulation: Transmitted Data Manipulation

Data Manipulation: Runtime Data Manipulation

Initial Access

Select any Techniques used:

Valid Accounts

Valid Accounts: Default Accounts

Valid Accounts: Domain Accounts

Valid Accounts: Local Accounts

Valid Accounts: Cloud Accounts

Replication Through Removable Media

External Remote Services

Drive-by Compromise

Exploit Public-Facing Application

Supply Chain Compromise

Supply Chain Compromise: Compromise Software Dependencies and Development Tools

Supply Chain Compromise: Compromise Software Supply Chain

Supply Chain Compromise: Compromise Hardware Supply Chain

Trusted Relationship

Hardware Additions

Phishing

Phishing: Spearphishing Attachment

Phishing: Spearphishing Link

Phishing: Spearphishing via Service

Lateral Movement

Select any Techniques used:

Remote Services

Remote Services: Remote Desktop Protocol

Remote Services: SMB/Windows Admin Shares

Remote Services: Distributed Component Object Model

Remote Services: SSH

Remote Services: VNC

Remote Services: Windows Remote Management

Software Deployment Tools

Taint Shared Content

Replication Through Removable Media

Exploitation of Remote Services

Internal Spearphishing

Use Alternate Authentication Material

Use Alternate Authentication Material: Application Access Token

Use Alternate Authentication Material: Pass the Hash

Use Alternate Authentication Material: Pass the Ticket

Use Alternate Authentication Material: Web Session Cookie

Remote Service Session Hijacking

Remote Service Session Hijacking: SSH Hijacking

Remote Service Session Hijacking: RDP Hijacking

Lateral Tool Transfer

Persistence

Select any Techniques used:

Boot or Logon Initialization Scripts

Boot or Logon Initialization Scripts: Logon Script (Windows)

Boot or Logon Initialization Scripts: Logon Script (Mac)

Boot or Logon Initialization Scripts: Network Logon Script

Boot or Logon Initialization Scripts: Rc.common

Boot or Logon Initialization Scripts: Startup Items

Scheduled Task/Job

Scheduled Task/Job: At (Linux)

Scheduled Task/Job: At (Windows)

Scheduled Task/Job: Cron

Scheduled Task/Job: Launchd

Scheduled Task/Job: Scheduled Task

Valid Accounts

Valid Accounts: Default Accounts

Valid Accounts: Domain Accounts

Valid Accounts: Local Accounts

Valid Accounts: Cloud Accounts

Account Manipulation

Account Manipulation: Additional Azure Service Principal Credentials

Account Manipulation: Exchange Email Delegate Permissions

Account Manipulation: Add Office 365 Global Administrator Role

Account Manipulation: SSH Authorized Keys

External Remote Services

Create Account

Create Account: Local Account

Create Account: Domain Account

Create Account: Cloud Account

Office Application Startup

Office Application Startup: Office Template Macros

Office Application Startup: Office Test

Office Application Startup: Outlook Forms

Office Application Startup: Outlook Home Page

Office Application Startup: Outlook Rules

Office Application Startup: Add-ins

Browser Extensions

BITS Jobs

Traffic Signaling

Traffic Signaling: Port Knocking

Server Software Component

Server Software Component: SQL Stored Procedures

Server Software Component: Transport Agent

Server Software Component: Web Shell

Implant Container Image

Pre-OS Boot

Pre-OS Boot: System Firmware

Pre-OS Boot: Component Firmware

Pre-OS Boot: Bootkit

Create or Modify System Process

Create or Modify System Process: Launch Agent

Create or Modify System Process: Systemd Service

Create or Modify System Process: Windows Service

Create or Modify System Process: Launch Daemon

Event Triggered Execution

Event Triggered Execution: Change Default File Association

Event Triggered Execution: Screensaver

Event Triggered Execution: Windows Management Instrumentation Event Subscription

Event Triggered Execution: .bash_profile and .bashrc

Event Triggered Execution: Trap

Event Triggered Execution: LC_LOAD_DYLIB Addition

Event Triggered Execution: Netsh Helper DLL

Event Triggered Execution: Accessibility Features

Event Triggered Execution: AppCert DLLs

Event Triggered Execution: AppInit DLLs

Event Triggered Execution: Application Shimming

Event Triggered Execution: Image File Execution Options Injection

Event Triggered Execution: PowerShell Profile

Event Triggered Execution: Emond

Event Triggered Execution: Component Object Model Hijacking

Boot or Logon Autostart Execution

Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Boot or Logon Autostart Execution: Authentication Package

Boot or Logon Autostart Execution: Time Providers

Boot or Logon Autostart Execution: Winlogon Helper DLL

Boot or Logon Autostart Execution: Security Support Provider

Boot or Logon Autostart Execution: Kernel Modules and Extensions

Boot or Logon Autostart Execution: Re-opened Applications

Boot or Logon Autostart Execution: LSASS Driver

Boot or Logon Autostart Execution: Shortcut Modification

Boot or Logon Autostart Execution: Port Monitors

Boot or Logon Autostart Execution: Plist Modification

Compromise Client Software Binary

Hijack Execution Flow

Hijack Execution Flow: DLL Search Order Hijacking

Hijack Execution Flow: DLL Side-Loading

Hijack Execution Flow: Dylib Hijacking

Hijack Execution Flow: Executable Installer File Permissions Weakness

Hijack Execution Flow: LD_PRELOAD

Hijack Execution Flow: Path Interception by PATH Environment Variable

Hijack Execution Flow: Path Interception by Search Order Hijacking

Hijack Execution Flow: Path Interception by Unquoted Path

Hijack Execution Flow: Services File Permissions Weakness

Hijack Execution Flow: Services Registry Permissions Weakness

Hijack Execution Flow: COR_PROFILER

Privilege Escalation

Select any Techniques used:

Boot or Logon Initialization Scripts

Boot or Logon Initialization Scripts: Logon Script (Windows)

Boot or Logon Initialization Scripts: Logon Script (Mac)

Boot or Logon Initialization Scripts: Network Logon Script

Boot or Logon Initialization Scripts: Rc.common

Boot or Logon Initialization Scripts: Startup Items

Scheduled Task/Job

Scheduled Task/Job: At (Linux)

Scheduled Task/Job: At (Windows)

Scheduled Task/Job: Cron

Scheduled Task/Job: Launchd

Scheduled Task/Job: Scheduled Task

Process Injection

Process Injection: Dynamic-link Library Injection

Process Injection: Portable Executable Injection

Process Injection: Thread Execution Hijacking

Process Injection: Asynchronous Procedure Call

Process Injection: Thread Local Storage

Process Injection: Ptrace System Calls

Process Injection: Proc Memory

Process Injection: Extra Window Memory Injection

Process Injection: Process Hollowing

Process Injection: Process Doppelgänging

Process Injection: VDSO Hijacking

Exploitation for Privilege Escalation

Valid Accounts

Valid Accounts: Default Accounts

Valid Accounts: Domain Accounts

Valid Accounts: Local Accounts

Valid Accounts: Cloud Accounts

Access Token Manipulation

Access Token Manipulation: Token Impersonation/Theft

Access Token Manipulation: Create Process with Token

Access Token Manipulation: Make and Impersonate Token

Access Token Manipulation: Parent PID Spoofing

Access Token Manipulation: SID-History Injection

Group Policy Modification

Create or Modify System Process

Create or Modify System Process: Launch Agent

Create or Modify System Process: Systemd Service

Create or Modify System Process: Windows Service

Create or Modify System Process: Launch Daemon

Event Triggered Execution

Event Triggered Execution: Change Default File Association

Event Triggered Execution: Screensaver

Event Triggered Execution: Windows Management Instrumentation Event Subscription

Event Triggered Execution: .bash_profile and .bashrc

Event Triggered Execution: Trap

Event Triggered Execution: LC_LOAD_DYLIB Addition

Event Triggered Execution: Netsh Helper DLL

Event Triggered Execution: Accessibility Features

Event Triggered Execution: AppCert DLLs

Event Triggered Execution: AppInit DLLs

Event Triggered Execution: Application Shimming

Event Triggered Execution: Image File Execution Options Injection

Event Triggered Execution: PowerShell Profile

Event Triggered Execution: Emond

Event Triggered Execution: Component Object Model Hijacking

Boot or Logon Autostart Execution

Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Boot or Logon Autostart Execution: Authentication Package

Boot or Logon Autostart Execution: Time Providers

Boot or Logon Autostart Execution: Winlogon Helper DLL

Boot or Logon Autostart Execution: Security Support Provider

Boot or Logon Autostart Execution: Kernel Modules and Extensions

Boot or Logon Autostart Execution: Re-opened Applications

Boot or Logon Autostart Execution: LSASS Driver

Boot or Logon Autostart Execution: Shortcut Modification

Boot or Logon Autostart Execution: Port Monitors

Boot or Logon Autostart Execution: Plist Modification

Abuse Elevation Control Mechanism

Abuse Elevation Control Mechanism: Setuid and Setgid

Abuse Elevation Control Mechanism: Bypass User Access Control

Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Abuse Elevation Control Mechanism: Elevated Execution with Prompt

Hijack Execution Flow

Hijack Execution Flow: DLL Search Order Hijacking

Hijack Execution Flow: DLL Side-Loading

Hijack Execution Flow: Dylib Hijacking

Hijack Execution Flow: Executable Installer File Permissions Weakness

Hijack Execution Flow: LD_PRELOAD

Hijack Execution Flow: Path Interception by PATH Environment Variable

Hijack Execution Flow: Path Interception by Search Order Hijacking

Hijack Execution Flow: Path Interception by Unquoted Path

Hijack Execution Flow: Services File Permissions Weakness

Hijack Execution Flow: Services Registry Permissions Weakness

Hijack Execution Flow: COR_PROFILER

Topic Tags

Select the tags that apply to this CVE (Assessment added tags are disabled and cannot be removed)

What makes this of high-value to an attacker?

Vulnerable in default configuration

Unauthenticated

Observed in state-sponsored attacks

Observed in ransomware attacks

Gives privileged access

Easy to weaponize

Difficult to patch

Common in enterprise

CISA KEV Listed

What makes this of low-value to an attacker?

Vulnerable in uncommon configuration

Requires user interaction

Requires physical access

Requires elevated access

No useful access

Difficult to weaponize

Authenticated

Description

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

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Ratings & Analysis
Vulnerability Details

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CVSS V3 Severity and Metrics

Data provided by the National Vulnerability Database (NVD)

Base Score:

6.7 Medium

Impact Score:

5.9

Exploitability Score:

0.8

Vector:

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV):

Local

Attack Complexity (AC):

Low

Privileges Required (PR):

High

User Interaction (UI):

None

Scope (S):

Unchanged

Confidentiality (C):

High

Integrity (I):

High

Availability (A):

High

General Information

Offensive Application

Unknown

Utility Class

Unknown

Ports

Unknown

Vulnerable Versions

CPG BIOS 1.14

Prerequisites

Unknown

Discovered By

Unknown

PoC Author

Unknown

Metasploit Module

Unknown

Reporter

Unknown

Vendors

dell

Products

alienware 13 r3 firmware,
alienware 15 r3 firmware,
alienware 15 r4 firmware,
alienware 17 r4 firmware,
alienware 17 r5 firmware,
alienware area 51m r1 firmware,
alienware area 51m r2 firmware,
alienware aurora r11 firmware,
alienware aurora r12 firmware,
alienware aurora r8 firmware,
alienware aurora r9 firmware,
alienware m15 r1 firmware,
alienware m15 r2 firmware,
alienware m15 r3 firmware,
alienware m15 r4 firmware,
alienware m17 r1 firmware,
alienware m17 r2 firmware,
alienware m17 r3 firmware,
alienware m17 r4 firmware,
alienware x15 r1 firmware,
alienware x17 r1 firmware,
chengming 3977 firmware,
chengming 3980 firmware,
chengming 3988 firmware,
chengming 3990 firmware,
chengming 3991 firmware,
embedded box pc 5000 firmware,
g15 5510 firmware,
g15 5511 firmware,
g3 3500 firmware,
g3 3579 firmware,
g3 3590 firmware,
g3 3779 firmware,
g5 5000 firmware,
g5 5090 firmware,
g5 5500 firmware,
g5 5590 firmware,
g7 7500 firmware,
g7 7587 firmware,
g7 7588 firmware,
g7 7590 firmware,
g7 7700 firmware,
g7 7790 firmware,
inspiron 13 5378 firmware,
inspiron 13 5379 firmware,
inspiron 13 7000 firmware,
inspiron 13 7370 firmware,
inspiron 13 7373 firmware,
inspiron 13 7378 firmware,
inspiron 14 3467 firmware,
inspiron 14 3473 firmware,
inspiron 14 5410 firmware,
inspiron 15 3567 firmware,
inspiron 15 3573 firmware,
inspiron 15 5518 firmware,
inspiron 15 5566 firmware,
inspiron 15 5578 firmware,
inspiron 15 5579 firmware,
inspiron 15 5582 firmware,
inspiron 15 7570 firmware,
inspiron 15 7572 firmware,
inspiron 15 7573 firmware,
inspiron 15 gaming 7577 firmware,
inspiron 17 7773 firmware,
inspiron 3268 firmware,
inspiron 3277 aio firmware,
inspiron 3280 firmware,
inspiron 3462 firmware,
inspiron 3470 firmware,
inspiron 3471 firmware,
inspiron 3472 firmware,
inspiron 3476 firmware,
inspiron 3477 aio firmware,
inspiron 3480 aio firmware,
inspiron 3480 firmware,
inspiron 3481 firmware,
inspiron 3482 firmware,
inspiron 3490 firmware,
inspiron 3493 firmware,
inspiron 3501 firmware,
inspiron 3502 firmware,
inspiron 3510 firmware,
inspiron 3511 firmware,
inspiron 3576 firmware,
inspiron 3580 firmware,
inspiron 3581 firmware,
inspiron 3582 firmware,
inspiron 3590 firmware,
inspiron 3593 firmware,
inspiron 3668 firmware,
inspiron 3670 firmware,
inspiron 3671 firmware,
inspiron 3780 firmware,
inspiron 3781 firmware,
inspiron 3782 firmware,
inspiron 3790 firmware,
inspiron 3793 firmware,
inspiron 3880 firmware,
inspiron 3881 firmware,
inspiron 3891 firmware,
inspiron 5300 firmware,
inspiron 5301 firmware,
inspiron 5310 firmware,
inspiron 5370 firmware,
inspiron 5390 firmware,
inspiron 5391 firmware,
inspiron 5400 2-in-1 firmware,
inspiron 5400 aio firmware,
inspiron 5401 aio firmware,
inspiron 5401 firmware,
inspiron 5402 firmware,
inspiron 5406 2-in-1 firmware,
inspiron 5408 firmware,
inspiron 5409 firmware,
inspiron 5410 firmware,
inspiron 5477 aio firmware,
inspiron 5480 firmware,
inspiron 5481 firmware,
inspiron 5482 firmware,
inspiron 5490 aio firmware,
inspiron 5490 firmware,
inspiron 5491 2-in-1 firmware,
inspiron 5491 aio firmware,
inspiron 5493 firmware,
inspiron 5494 firmware,
inspiron 5498 firmware,
inspiron 5501 firmware,
inspiron 5502 firmware,
inspiron 5508 firmware,
inspiron 5509 firmware,
inspiron 5570 firmware,
inspiron 5580 firmware,
inspiron 5583 firmware,
inspiron 5584 firmware,
inspiron 5590 firmware,
inspiron 5591 2-in-1 firmware,
inspiron 5593 firmware,
inspiron 5594 firmware,
inspiron 5598 firmware,
inspiron 5680 firmware,
inspiron 5770 firmware,
inspiron 7300 2-in-1 firmware,
inspiron 7300 firmware,
inspiron 7306 2-in-1 firmware,
inspiron 7380 firmware,
inspiron 7386 firmware,
inspiron 7390 firmware,
inspiron 7391 firmware,
inspiron 7400 firmware,
inspiron 7472 firmware,
inspiron 7490 firmware,
inspiron 7500 2-in-1 firmware,
inspiron 7500 firmware,
inspiron 7501 firmware,
inspiron 7506 2-in-1 firmware,
inspiron 7510 firmware,
inspiron 7580 firmware,
inspiron 7586 firmware,
inspiron 7590 firmware,
inspiron 7591 firmware,
inspiron 7610 firmware,
inspiron 7700 aio firmware,
inspiron 7706 2-in-1 firmware,
inspiron 7777 aio firmware,
inspiron 7786 firmware,
inspiron 7790 firmware,
inspiron 7791 firmware,
latitude 12 5289 2-in-1 firmware,
latitude 12 7280 ultrabook firmware,
latitude 12 7285 firmware,
latitude 12 rugged extreme 7214 firmware,
latitude 12 rugged tablet 7212 firmware,
latitude 13 7370 ultrabook firmware,
latitude 13 7389 2-in-1 firmware,
latitude 13 7390 2-in-1 firmware,
latitude 14 rugged 5414 firmware,
latitude 3120 firmware,
latitude 3180 firmware,
latitude 3189 firmware,
latitude 3190 2-in-1 firmware,
latitude 3190 firmware,
latitude 3300 firmware,
latitude 3301 firmware,
latitude 3310 2-in-1 firmware,
latitude 3310 firmware,
latitude 3320 firmware,
latitude 3379 firmware,
latitude 3380 firmware,
latitude 3390 firmware,
latitude 3400 firmware,
latitude 3410 firmware,
latitude 3420 firmware,
latitude 3470 firmware,
latitude 3480 firmware,
latitude 3490 firmware,
latitude 3500 firmware,
latitude 3510 firmware,
latitude 3520 firmware,
latitude 3551 firmware,
latitude 3570 firmware,
latitude 3580 firmware,
latitude 3590 firmware,
latitude 5175 firmware,
latitude 5179 firmware,
latitude 5280 firmware,
latitude 5285 2-in-1 firmware,
latitude 5288 firmware,
latitude 5290 2-in-1 firmware,
latitude 5290 firmware,
latitude 5300 2-in-1 firmware,
latitude 5300 firmware,
latitude 5310 2 in 1 firmware,
latitude 5310 firmware,
latitude 5320 firmware,
latitude 5400 firmware,
latitude 5401 firmware,
latitude 5410 firmware,
latitude 5411 firmware,
latitude 5420 firmware,
latitude 5421 firmware,
latitude 5480 firmware,
latitude 5488 firmware,
latitude 5490 firmware,
latitude 5491 firmware,
latitude 5500 firmware,
latitude 5501 firmware,
latitude 5510 firmware,
latitude 5511 firmware,
latitude 5520 firmware,
latitude 5521 firmware,
latitude 5580 firmware,
latitude 5590 firmware,
latitude 5591 firmware,
latitude 7200 2-in-1 firmware,
latitude 7210 2-in-1 firmware,
latitude 7275 2-in-1 firmware,
latitude 7290 firmware,
latitude 7300 firmware,
latitude 7310 firmware,
latitude 7320 detachable firmware,
latitude 7320 firmware,
latitude 7380 firmware,
latitude 7390 firmware,
latitude 7400 2-in-1 firmware,
latitude 7400 firmware,
latitude 7410 firmware,
latitude 7414 rugged extreme firmware,
latitude 7420 firmware,
latitude 7480 firmware,
latitude 7490 firmware,
latitude 7520 firmware,
latitude 9410 firmware,
latitude 9420 firmware,
latitude 9510 firmware,
latitude 9520 firmware,
latitude e5270 firmware,
latitude e5470 firmware,
latitude e5570 firmware,
latitude e7270 firmware,
latitude e7470 firmware,
latitude rugged 5420 firmware,
latitude rugged 5424 firmware,
latitude rugged 7220 firmware,
latitude rugged 7220ex firmware,
latitude rugged 7424 firmware,
optiplex 3040 firmware,
optiplex 3046 firmware,
optiplex 3050 aio firmware,
optiplex 3050 firmware,
optiplex 3060 firmware,
optiplex 3070 firmware,
optiplex 3080 firmware,
optiplex 3090 firmware,
optiplex 3240 all-in-one firmware,
optiplex 3280 all-in-one firmware,
optiplex 5040 firmware,
optiplex 5050 firmware,
optiplex 5060 firmware,
optiplex 5070 firmware,
optiplex 5080 firmware,
optiplex 5090 tower firmware,
optiplex 5250 firmware,
optiplex 5260 all-in-one firmware,
optiplex 5270 all-in-one firmware,
optiplex 5480 all-in-one firmware,
optiplex 5490 aio firmware,
optiplex 7040 firmware,
optiplex 7050 firmware,
optiplex 7060 firmware,
optiplex 7070 firmware,
optiplex 7070 uff firmware,
optiplex 7071 firmware,
optiplex 7080 firmware,
optiplex 7090 tower firmware,
optiplex 7090 uff firmware,
optiplex 7440 aio firmware,
optiplex 7450 firmware,
optiplex 7460 all in one firmware,
optiplex 7470 all-in-one firmware,
optiplex 7480 all-in-one firmware,
optiplex 7490 aio firmware,
optiplex 7760 aio firmware,
optiplex 7770 all-in-one firmware,
optiplex 7780 all-in-one firmware,
optiplex xe3 firmware,
precision 3240 cff firmware,
precision 3420 tower firmware,
precision 3430 tower firmware,
precision 3431 tower firmware,
precision 3440 firmware,
precision 3450 firmware,
precision 3510 firmware,
precision 3520 firmware,
precision 3530 firmware,
precision 3540 firmware,
precision 3541 firmware,
precision 3550 firmware,
precision 3560 firmware,
precision 3561 firmware,
precision 3620 tower firmware,
precision 3630 tower firmware,
precision 3640 firmware,
precision 3930 rack firmware,
precision 5510 firmware,
precision 5520 firmware,
precision 5530 2-in-1 firmware,
precision 5530 firmware,
precision 5540 firmware,
precision 5550 firmware,
precision 5720 aio firmware,
precision 5750 firmware,
precision 5820 tower firmware,
precision 7820 tower firmware,
precision 7920 tower firmware

References

Canonical

CVE-2021-36342 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36342)

Miscellaneous

https://www.dell.com/support/kbdoc/en-us/000193321/dsa-2021-240

Additional Info

Authenticated

Unknown

Exploitable

Unknown

Reliability

Unknown

Stability

Unknown

Available Mitigations

Unknown

Shelf Life

Unknown

Userbase/Installbase

Unknown

Patch Effectiveness

Unknown

Rapid7

Technical Analysis

Report as Emergent Threat Response

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Report as Zero-day Exploit

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Report as Exploited in the Wild

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Vendor Advisory

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Government or Industry Alert

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Threat Feed

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News Article or Blog

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Exploitation personally observed in an environment (client, customer, employer, or personal environment)

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CVE ID

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CVE ID:

Unknown

CVE-2021-36342

Unknown

Unknown

None

High

Local

CVE-2021-36342

Description

Add Assessment

CVSS V3 Severity and Metrics

General Information

Vendors

Products

References

Canonical

Miscellaneous

Additional Info

Technical Analysis

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