Zero404
✦ Legend ✦
Live Ranking
#1
Best: #1
Total Points
943
Total Earned
Labs Completed
101
103 User • 15 Root
Modules
32
Validated
First Bloods
27
First to Complete
Best Streak
8
Days
Skills Acquired
Technical skills practiced through completed labs
GitVersion ControlSource Code AnalysisReconnaissanceWeb SecurityWeb EnumerationFile DiscoveryInformation GatheringPHPType JugglingAuthentication BypassHash AnalysisCryptographyHash CrackingPassword AnalysisSecurity ToolsJavaScriptDeobfuscationClient-Side SecurityBrowser DevToolsCode AnalysisSQL InjectionDatabase SecurityInput ValidationPenetration TestingWeb Application SecuritySSTIFlask SecuritySSH Brute ForceDatabase EnumerationPrivilege EscalationSteganographyClassical CiphersImage AnalysisPolyalphabetic CiphersDirectory TraversalPath InjectionFile System SecurityPath ManipulationFile AccessYAML DeserializationPyYAML ExploitationConfiguration InjectionPython SecurityUnsafe DeserializationRemote Code ExecutionFile Processing SecurityWebDAV ExploitationFile UploadRemote File AccessHTTP MethodsWeb Server SecurityFile System EnumerationPrototype PollutionNode.js SecurityAPI SecurityJavaScript ExploitationObject ManipulationInput Validation BypassModern Web VulnerabilitiesRace ConditionsTiming AttacksConcurrent ExploitationIDORParameter ManipulationAuthorization BypassLocal File InclusionFilter BypassApache AuthenticationPassword CrackingHTTP HeadersSecurity BypassClient-Side ManipulationDirectory EnumerationWeb ReconnaissanceAdministrative Panel DiscoverySecurity AssessmentJWTCookie ManipulationDOM ManipulationGraphQLSchema IntrospectionInjectionNetwork ForensicsDNS AnalysisData ExfiltrationTraffic AnalysisFrequency AnalysisPattern RecognitionDocker Registry APIContainer SecurityAPI ManipulationRegistry ExploitationSUID BinariesCommand InjectionLinux SecurityBinary ExploitationNoSQL InjectionMongoDBDocument DatabasesLDAP InjectionDirectory ServicesEnterprise SecurityJWT ManipulationSSH ExploitationLog InjectionServer-Side Template InjectionJinja2 ExploitationIP SpoofingAccess Control BypassWireless SecurityWEP CrackingRC4 AnalysisPacket AnalysisCryptographic AttacksLegacy Protocol ExploitationDigital ForensicsWindows RegistryPersistence AnalysisBase64 DecodingIncident ResponseMalware AnalysisWiFi SecurityWPA CrackingDictionary AttacksWireless Penetration TestingNetwork SecurityHistorical CryptanalysisMD5 CrackingPassword AttacksGit ForensicsVersion Control SecurityRepository AnalysisSecret RecoveryOSINTPython PickleEnterprise DeserializationCorporate Backup SystemsDisaster Recovery ExploitationConfiguration Import AttacksZIP Password CrackingJohn the RipperfcrackzipBrute ForceArchive SecurityKeePass 4.x SecurityDirect Brute ForcePassword Manager AssessmentModern CryptographySecurity Tool LimitationsJinja2Web Application TestingCode InjectionPDF SecurityDocument SecurityBrute Force AttacksShell CommandsSystem AdministrationHTTP Parameter ManipulationUser-Agent Log PoisoningApache SecurityLog AnalysisVisibility ControlsSecurity TestingOperator ExploitationBypass TechniquesWeb ShellsSocial EngineeringPost ExploitationCSRFCross-Site Request ForgerySession SecurityForm SecurityHTTP SecurityState ManagementSSRFServer-Side Request ForgeryAWS MetadataCloud SecurityIAM CredentialsAWS EC2Logic FlawClaims ManipulationTime-Based AttacksSignature CrackingXSSCross-Site ScriptingStored XSSSession HijackingSSHLinux Privilege EscalationFile PermissionsBlind SQLiTime-based SQLiBoolean-based SQLiVulnerability AssessmentXXEXML SecurityFile DisclosureExternal EntityAlgorithm ConfusionRS256HS256Token ForgeryToken AuthenticationWeb ExploitationService DiscoveryCommand Line ToolsForensicsHTTP ProtocolAttack DetectionPath TraversalCGIFlaskDebug ModePythonMemory AnalysisTransposition CipherRail FenceAudio AnalysisLSBPDF ForensicsFile AnalysisMetadataHidden DataForensic ToolsLFIFile InclusionBlockchain AnalysisBitcoinOP_RETURNHex DecodingData ExtractionForensic AnalysisNetwork AnalysisDNSCryptanalysisClassical CryptoData EncodingJenkinsCI/CDDevOpsPentestAutomationSession ManagementAuthenticationNetwork ReconnaissanceDatabase ForensicsCLI UsageData RecoveryBase64Hex EncodingRedisMemory ForensicsBinary AnalysisTool UsageROT13 EncodingWeb HackingLogic FlawsToken ManipulationBase64 EncodingQR Code AnalysisWeb InspectionHTML AnalysisHex EditorsData StructuresReverse EngineeringMD5Rainbow TablesWeb DevelopmentPacket CaptureWiresharkProtocol AnalysisWebCTF BasicsHexadecimalFile Upload BypassPHP SecurityWeb Shell ExploitationWEBIDOR ExploitationZip Slip VulnerabilityInternal Service DiscoveryBackup Service ExploitationSudo Vim ExploitationLearning PathJSTELNETLinux CapabilitiesReverse ShellSystem EnumerationWPAdvanced ReconnaissanceAndroid Reverse EngineeringSCADA ExploitationCVE ExploitationMYSQLIRCENetworkingCommand LineWeb ServicesGITLinuxSudoIP SPOOFINGFTP ExploitationBackdoor DetectionNetwork ServicesRemote ShellSystem ExploitationFTPApache TomcatWAR DeploymentDefault CredentialsHTML
Completed Modules
Educational modules successfully validated
Nmap Mastery: Dominate Network Scanning
4 modulesInstalling Nmap
Advanced Techniques
Introduction to Nmap
Essential Nmap Scanning
HTTP Header Manipulation: IP Spoofing
3 modulesRemediate
Techniques for IP Spoofing in HTTP Headers
Manipulating Headers
Password Cracking: Advanced Techniques for Security Assessment
5 modulesRainbow Tables and Precomputed Attacks
PDF Password Cracking and Document Security
Brute Force and Hybrid Attack Techniques
Password Security Fundamentals
Dictionary Attacks and Wordlist Optimization
HDNA Ethical Hacking Course
5 modules1. Legal & Compliance
2. Network Protocols and Security
4. Network Scanning
3. Reconnaissance
Course Summary
Web Application Security: Exploitation and Defense
12 modulesCross-Site Request Forgery
XML External Entity Injection
Server-Side Request Forgery
Local and Remote File Inclusion
Course Introduction
Server-Side Template Injection
Deserialization Attacks
File Upload Exploitation
Cross-Site Scripting
Authentication Bypass
SQL Injection
Command Injection
Remote Code Execution (RCE)
3 modulesShellshock (CVE-2014-6271)
RCE: Introduction
RCE in PHP
Completed Labs & Challenges
Hands-on cybersecurity challenges successfully completed
Git Exposed
Challenge
GitVersion ControlSource Code AnalysisReconnaissanceWeb Security
Backup Hunter
Challenge
Web EnumerationFile DiscoveryReconnaissanceInformation Gathering
Type Juggling Bypass
Challenge
Web SecurityPHPType JugglingAuthentication BypassHash Analysis
Crack SHA1 Hash
Challenge
CryptographyHash CrackingPassword AnalysisSecurity Tools
Hack This Site
Challenge
JavaScriptDeobfuscationClient-Side SecurityBrowser DevToolsCode AnalysisAuthentication Bypass
SQL Injection Test
Challenge
SQL InjectionWeb SecurityDatabase SecurityAuthentication BypassInput ValidationPenetration Testing
FortiPy
Hard
Web Application SecuritySSTIFlask SecuritySSH Brute ForceDatabase EnumerationHash CrackingPrivilege Escalation
Vigenere Stego Hunt
Challenge
CryptographySteganographyClassical CiphersImage AnalysisPolyalphabetic Ciphers
Simple Directory Traversal
Challenge
Directory TraversalPath InjectionFile System SecurityWeb SecurityInput ValidationPath ManipulationFile Access
YAML Bomb
Challenge
YAML DeserializationPyYAML ExploitationConfiguration InjectionPython SecurityUnsafe DeserializationRemote Code ExecutionFile Processing Security
WebDAV Explorer
Challenge
WebDAV ExploitationFile UploadDirectory TraversalRemote File AccessHTTP MethodsWeb Server SecurityFile System Enumeration
Prototype Pollution Hunter
Challenge
Prototype PollutionNode.js SecurityAPI SecurityJavaScript ExploitationObject ManipulationInput Validation BypassModern Web Vulnerabilities
Race Condition Hunter
Challenge
Race ConditionsTiming AttacksConcurrent ExploitationWeb Application Security
IDOR Explorer
Challenge
IDORParameter ManipulationWeb Application SecurityAuthorization Bypass
File Include Bypass
Challenge
Local File InclusionFilter BypassApache AuthenticationPassword Cracking
Header Hijacker
Challenge
HTTP HeadersSecurity BypassWeb Application SecurityClient-Side Manipulation
Corporate Directory Hunt
Challenge
Directory EnumerationWeb ReconnaissanceAdministrative Panel DiscoverySecurity Assessment
Cookie Forge
Challenge
JWTCookie ManipulationAuthentication BypassPrivilege Escalation
Button Activator
Challenge
JavaScriptBrowser DevToolsDOM ManipulationClient-Side Security
GraphQL Gateway
Challenge
GraphQLAPI SecuritySchema IntrospectionAuthorization BypassInjection
DNS Tunneling Detective
Challenge
Network ForensicsDNS AnalysisData ExfiltrationTraffic Analysis
Caesar Shift Decoder
Challenge
CryptographyClassical CiphersFrequency AnalysisPattern Recognition
Registry Hijacker
Challenge
Docker Registry APIAuthentication BypassContainer SecurityAPI ManipulationRegistry Exploitation
SUID Privilege Hunter
Challenge
SUID BinariesPrivilege EscalationCommand InjectionLinux SecurityBinary Exploitation
MongoDB Injector
Challenge
NoSQL InjectionMongoDBAuthentication BypassDocument DatabasesWeb Security
LDAP Injector
Challenge
LDAP InjectionAuthentication BypassDirectory ServicesEnterprise SecurityWeb Security
Infiltrator
Easy
JWT ManipulationSSH ExploitationLog InjectionPrivilege EscalationWeb SecurityLinux Security
Template Injector
Challenge
Server-Side Template InjectionFlask SecurityJinja2 ExploitationRemote Code ExecutionWeb Security
IP Spoofing Admin
Challenge
Web SecurityHTTP HeadersIP SpoofingAccess Control BypassInformation Gathering
WEP Cracker
Challenge
Wireless SecurityWEP CrackingRC4 AnalysisPacket AnalysisCryptographic AttacksLegacy Protocol Exploitation
Registry Hunter
Challenge
Digital ForensicsWindows RegistryPersistence AnalysisBase64 DecodingIncident ResponseMalware Analysis
WiFi Password Cracker
Challenge
WiFi SecurityWPA CrackingDictionary AttacksWireless Penetration TestingNetwork SecurityPacket Analysis
Book Cipher Challenge
Challenge
CryptographyClassical CiphersPattern RecognitionHistorical Cryptanalysis
Admin Portal Breach
Challenge
Client-Side SecurityMD5 CrackingSource Code AnalysisWeb Application SecurityPassword AttacksAuthentication Bypass
Git Secrets Hunter
Challenge
Git ForensicsVersion Control SecurityRepository AnalysisPenetration TestingSecret RecoveryOSINT
Corporate Backup Deserializer
Challenge
Python PickleEnterprise DeserializationCorporate Backup SystemsDisaster Recovery ExploitationConfiguration Import AttacksEnterprise Security
ZIP Cracker
Challenge
ZIP Password CrackingJohn the RipperfcrackzipDictionary AttacksBrute ForceArchive Security
KeePass Breaker
Challenge
KeePass 4.x SecurityDirect Brute ForcePassword Manager AssessmentModern CryptographySecurity Tool Limitations
Template Injection
Challenge
Server-Side Template InjectionJinja2Flask SecurityWeb Application TestingCode InjectionPrivilege Escalation
PDF Password Cracker
Challenge
PDF SecurityPassword CrackingDictionary AttacksDigital ForensicsDocument SecurityBrute Force Attacks
Shell Command Scanner
Challenge
Command InjectionWeb SecurityShell CommandsSystem AdministrationHTTP Parameter ManipulationSecurity Assessment
LFI Log Poison
Challenge
Local File InclusionUser-Agent Log PoisoningRemote Code ExecutionDirectory TraversalWeb SecurityApache SecuritySystem AdministrationLog Analysis
NoSQL Injection
Challenge
NoSQL InjectionMongoDBVisibility ControlsAccess Control BypassSecurity TestingOperator Exploitation
File Upload Bypass
Challenge
File UploadWeb SecurityBypass TechniquesPHPWeb ShellsInput ValidationSocial EngineeringPost Exploitation
CSRF Bank Transfer
Challenge
CSRFCross-Site Request ForgerySession SecurityWeb SecuritySocial EngineeringForm SecurityHTTP SecurityState Management
URL Scanner
Challenge
SSRFServer-Side Request ForgeryAWS MetadataCloud SecurityIAM CredentialsNetwork SecurityWeb SecurityAWS EC2
API Logic Flaw
Challenge
API SecurityLogic FlawAuthentication BypassParameter ManipulationPHPWeb Security
JWT Claims Manipulation
Challenge
JWTClaims ManipulationPrivilege EscalationAuthentication BypassTime-Based AttacksSignature Cracking
XSS Playground
Challenge
XSSCross-Site ScriptingStored XSSSession HijackingJavaScriptWeb SecurityClient-Side SecurityDOM Manipulation
Alpwned
Medium
SQL InjectionAuthentication BypassSSHLinux Privilege EscalationFile PermissionsWeb Application Security
SQL Injection
Challenge
SQL InjectionDatabase SecurityWeb SecurityBlind SQLiTime-based SQLiBoolean-based SQLiDatabase EnumerationVulnerability Assessment
XXE Exposed
Challenge
XXEXML SecurityFile DisclosureExternal EntityWeb SecurityVulnerability Assessment
JWT Algo Confusion
Challenge
JWTAlgorithm ConfusionRS256HS256Token ForgeryWeb Security
JWT Bypass
Challenge
JWTWeb SecurityToken AuthenticationCryptography
Auth Bypass
Challenge
SQL InjectionAuthentication BypassWeb SecurityDatabase Security
Ping Pwn
Challenge
Command InjectionWeb ExploitationService DiscoveryNetwork Security
Log Hunter
Challenge
Log AnalysisWeb SecurityIncident ResponsePattern RecognitionFile DiscoveryCommand Line ToolsForensicsHTTP ProtocolAttack DetectionSecurity Assessment
Path Traversal
Challenge
Path TraversalCGIWeb SecurityFile AccessDirectory TraversalInput Validation
Flask Error
Challenge
FlaskDebug ModePythonWeb SecurityMemory Analysis
Rail Fence
Challenge
CryptographyTransposition CipherRail FencePattern RecognitionPython
Sonic Cipher
Challenge
SteganographyAudio AnalysisLSBForensicsPython
Pixel Puzzler
Challenge
SteganographyImage AnalysisLSBForensicsPython
PDF Trap
Challenge
PDF ForensicsFile AnalysisMetadataHidden DataForensic Tools
Corporate Breach 2
Challenge
Web SecurityPHPLFIPath ManipulationFile Inclusion
Blockchain Secrets
Challenge
Blockchain AnalysisBitcoinOP_RETURNHex DecodingData ExtractionForensic Analysis
Corporate Breach
Challenge
Web SecurityPHPLFIPassword CrackingAuthentication BypassDirectory Traversal
DNS Exfil
Challenge
Network AnalysisDNSPacket AnalysisData ExfiltrationBase64 Decoding
Crypto Cipher
Challenge
CryptanalysisClassical CryptoPattern RecognitionData Encoding
Snapchat Exposed
Challenge
JenkinsCI/CDDevOpsWeb SecurityPentestAutomation
Session Switch
Challenge
Web SecuritySession ManagementAuthenticationPrivilege EscalationPHP
Red is Dead
Challenge
Network ReconnaissanceService DiscoveryDatabase ForensicsData EncodingCLI UsageData RecoveryIncident ResponseBase64Hex EncodingRedis
Memory Forensics
Challenge
Memory ForensicsBinary AnalysisDigital ForensicsPattern RecognitionIncident ResponseTool UsageData RecoveryROT13 Encoding
API Breaker
Challenge
API SecurityWeb HackingLogic FlawsPrivilege EscalationToken ManipulationBase64 EncodingAuthorization Bypass
QR Code Quest
Challenge
QR Code AnalysisImage AnalysisData ExtractionSteganographyDigital Forensics
Base64 Detective
Challenge
Base64Web InspectionBrowser DevToolsData EncodingHTML Analysis
Binary Secrets
Challenge
Binary AnalysisHex EditorsData StructuresReverse EngineeringFile Analysis
Get the Password
Challenge
JavaScriptMD5Rainbow TablesWeb DevelopmentBrowser DevTools
Packet Pursuit
Challenge
Network AnalysisPacket CaptureWiresharkProtocol Analysis
Stego Hunt
Challenge
SteganographyImage AnalysisWebCTF Basics
Hex Hunt
Challenge
JavaScriptWeb DevelopmentHexadecimalBrowser DevTools
FiPloit
Easy
Local File InclusionFile Upload BypassPHP SecurityDirectory TraversalWeb Shell ExploitationPrivilege EscalationLog Analysis
AlVault
Medium
WEB
Broken Chain
Hard
IDOR ExploitationZip Slip VulnerabilityServer-Side Template InjectionInternal Service DiscoveryBackup Service ExploitationPrivilege EscalationSudo Vim Exploitation
Hack the Cookie
Very Easy
WEBLearning Path
Hack the Login
Very Easy
JSLearning Path
Nmap Lab 102
Very Easy
TELNETLearning Path
Cronpocalypse
Easy
SSH
Internal
Hard
Command InjectionLinux CapabilitiesPrivilege EscalationReverse ShellWeb Application SecuritySystem EnumerationNetwork Reconnaissance
WP Ultimate
Hard
WP
Compromised 2
Hard
Advanced ReconnaissanceAndroid Reverse EngineeringSCADA ExploitationCVE ExploitationAuthentication BypassPrivilege Escalation
Query Quake
Medium
MYSQLIRCE
Learning Lab 101
Very Easy
NetworkingReconnaissanceCommand LineWeb ServicesLearning Path
Traversed
Medium
GIT
Matsudo
Medium
SSHBrute ForcePrivilege EscalationLinuxSudoNetwork ReconnaissancePenetration Testing
Beyond Echo
Medium
PHPRCE
Include me
Easy
PHPLFI
Spoof!
Easy
IP SPOOFING
Anonymous 2
Easy
FTP ExploitationBackdoor DetectionNetwork ServicesRemote ShellSystem Exploitation
Anonymous
Easy
FTP
Compromised 1
Medium
Apache TomcatWeb Application SecurityWAR DeploymentDefault CredentialsPrivilege EscalationLinuxSudoWeb Shells
Secrets in Source
Very Easy
HTMLLearning Path
Courses Progress
Your learning paths and modules