AWS - STS Persistence

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STS

Vir meer inligting, besoek:

pageAWS - STS Enum

Veronderstel rol token

Tydelike tokens kan nie gelys word nie, dus om 'n aktiewe tydelike token te handhaaf is 'n manier om volharding te handhaaf.

aws sts get-session-token --duration-seconds 129600

# Met MFA
aws sts get-session-token \
--serial-number <mfa-device-name> \
--token-code <code-from-token>

# Hardeware toestelnaam is gewoonlik die nommer van die agterkant van die toestel, soos GAHT12345678
# SMS toestelnaam is die ARN in AWS, soos arn:aws:iam::123456789012:sms-mfa/username
# Virtuele toestelnaam is die ARN in AWS, soos arn:aws:iam::123456789012:mfa/username

Rolketting Jonglering

Rolketting is 'n erken AWS-funksie, dikwels gebruik vir die handhawing van stil volharding. Dit behels die vermoë om 'n rol te veronderstel wat dan 'n ander veronderstel, moontlik om terug te keer na die aanvanklike rol op 'n sikliese wyse. Elke keer as 'n rol veronderstel word, word die vervalveld van die geloofsbriewe verfris. Gevolglik, as twee rolle gekonfigureer is om mekaar wederkerig te veronderstel, maak hierdie opstelling die voortdurende hernuwing van geloofsbriewe moontlik.

Jy kan hierdie werktuig gebruik om die rolketting aan die gang te hou:

./aws_role_juggler.py -h
usage: aws_role_juggler.py [-h] [-r ROLE_LIST [ROLE_LIST ...]]

optional arguments:
-h, --help            show this help message and exit
-r ROLE_LIST [ROLE_LIST ...], --role-list ROLE_LIST [ROLE_LIST ...]

Kode om Rol Jonglering vanaf PowerShell uit te voer

# PowerShell script to check for role juggling possibilities using AWS CLI

# Check for AWS CLI installation
if (-not (Get-Command "aws" -ErrorAction SilentlyContinue)) {
Write-Error "AWS CLI is not installed. Please install it and configure it with 'aws configure'."
exit
}

# Function to list IAM roles
function List-IAMRoles {
aws iam list-roles --query "Roles[*].{RoleName:RoleName, Arn:Arn}" --output json
}

# Initialize error count
$errorCount = 0

# List all roles
$roles = List-IAMRoles | ConvertFrom-Json

# Attempt to assume each role
foreach ($role in $roles) {
$sessionName = "RoleJugglingTest-" + (Get-Date -Format FileDateTime)
try {
$credentials = aws sts assume-role --role-arn $role.Arn --role-session-name $sessionName --query "Credentials" --output json 2>$null | ConvertFrom-Json
if ($credentials) {
Write-Host "Successfully assumed role: $($role.RoleName)"
Write-Host "Access Key: $($credentials.AccessKeyId)"
Write-Host "Secret Access Key: $($credentials.SecretAccessKey)"
Write-Host "Session Token: $($credentials.SessionToken)"
Write-Host "Expiration: $($credentials.Expiration)"

# Set temporary credentials to assume the next role
$env:AWS_ACCESS_KEY_ID = $credentials.AccessKeyId
$env:AWS_SECRET_ACCESS_KEY = $credentials.SecretAccessKey
$env:AWS_SESSION_TOKEN = $credentials.SessionToken

# Try to assume another role using the temporary credentials
foreach ($nextRole in $roles) {
if ($nextRole.Arn -ne $role.Arn) {
$nextSessionName = "RoleJugglingTest-" + (Get-Date -Format FileDateTime)
try {
$nextCredentials = aws sts assume-role --role-arn $nextRole.Arn --role-session-name $nextSessionName --query "Credentials" --output json 2>$null | ConvertFrom-Json
if ($nextCredentials) {
Write-Host "Also successfully assumed role: $($nextRole.RoleName) from $($role.RoleName)"
Write-Host "Access Key: $($nextCredentials.AccessKeyId)"
Write-Host "Secret Access Key: $($nextCredentials.SecretAccessKey)"
Write-Host "Session Token: $($nextCredentials.SessionToken)"
Write-Host "Expiration: $($nextCredentials.Expiration)"
}
} catch {
$errorCount++
}
}
}

# Reset environment variables
Remove-Item Env:\AWS_ACCESS_KEY_ID
Remove-Item Env:\AWS_SECRET_ACCESS_KEY
Remove-Item Env:\AWS_SESSION_TOKEN
} else {
$errorCount++
}
} catch {
$errorCount++
}
}

# Output the number of errors if any
if ($errorCount -gt 0) {
Write-Host "$errorCount error(s) occurred during role assumption attempts."
} else {
Write-Host "No errors occurred. All roles checked successfully."
}

Write-Host "Role juggling check complete."

Leer AWS-hacking vanaf nul tot held met htARTE (HackTricks AWS Red Team Expert)!

Ander maniere om HackTricks te ondersteun:

• As jy jou maatskappy geadverteer wil sien in HackTricks of HackTricks in PDF wil aflaai Kyk na die INSKRYWINGSPLANNE!

• Kry die amptelike PEASS & HackTricks swag

• Ontdek Die PEASS-familie, ons versameling eksklusiewe NFT's

• Sluit aan by die 💬 Discord-groep of die telegram-groep of volg ons op Twitter 🐦 @hacktricks_live.

• Deel jou hacking-truuks deur PR's in te dien by die HackTricks en HackTricks Cloud github-opslag.