AWS - STS Persistence
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STS
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AWS - STS EnumAssume role token
临时令牌无法列出，因此保持一个活跃的临时令牌是一种保持持久性的方式。
aws sts get-session-token --duration-seconds 129600
# 使用 MFA
aws sts get-session-token \
--serial-number <mfa-device-name> \
--token-code <code-from-token>
# 硬件设备名称通常是设备背面的编号，例如 GAHT12345678
# SMS 设备名称是 AWS 中的 ARN，例如 arn:aws:iam::123456789012:sms-mfa/username
# 虚拟设备名称是 AWS 中的 ARN，例如 arn:aws:iam::123456789012:mfa/usernameRole Chain Juggling
角色链是 AWS 认可的功能，通常用于保持隐蔽的持久性。它涉及假设一个角色然后再假设另一个角色的能力，可能以循环方式返回到初始角色。每次假设角色时，凭证的到期字段都会刷新。因此，如果两个角色配置为相互假设，这种设置允许凭证的永久更新。
你可以使用这个 工具 来保持角色链的运行：
./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 ...]请注意，该Github库中的find_circular_trust.py脚本并不能找到角色链可以配置的所有方式。
从PowerShell执行Role Juggling的代码
```powershell # 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."
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