AWS - STS Persistence

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• Kyk na die subskripsie planne!

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• Deel hacking truuks deur PR's in te dien na die HackTricks en HackTricks Cloud github repos.

STS

Vir meer inligting, toegang:

AWS - STS Enum

Neem rol token

Tydelike tokens kan nie gelys word nie, so 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/gebruikersnaam
# Virtuele toestelnaam is die ARN in AWS, soos arn:aws:iam::123456789012:mfa/gebruikersnaam

Rolketting Juggling

Rolketting is 'n erkende AWS kenmerk, dikwels gebruik om stealth volharding te handhaaf. Dit behels die vermoë om 'n rol aan te neem wat dan 'n ander aanneem, wat moontlik terugkeer na die aanvanklike rol in 'n sikliese manier. Elke keer as 'n rol aangeneem word, word die vervaldatum van die kredensiale verfris. Gevolglik, as twee rolle gekonfigureer is om mekaar onderling aan te neem, laat hierdie opstelling die voortdurende vernuwing van kredensiale toe.

Jy kan hierdie instrument 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 ...]

Let daarop dat die find_circular_trust.py skrip van daardie Github-bewaarplek nie al die maniere vind waarop 'n rolketting gekonfigureer kan word nie.

Kode om Rol Juggling vanaf PowerShell uit te voer

```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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Leer & oefen GCP Hacking: <img src="../../../.gitbook/assets/image (2) (1).png" alt="" data-size="line">[**HackTricks Opleiding GCP Red Team Expert (GRTE)**<img src="../../../.gitbook/assets/image (2) (1).png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)

<details>

<summary>Ondersteun HackTricks</summary>

* Kyk na die [**subskripsie planne**](https://github.com/sponsors/carlospolop)!
* **Sluit aan by die** 💬 [**Discord groep**](https://discord.gg/hRep4RUj7f) of die [**telegram groep**](https://t.me/peass) of **volg** ons op **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks_live)**.**
* **Deel hacking truuks deur PRs in te dien na die** [**HackTricks**](https://github.com/carlospolop/hacktricks) en [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.

</details>

</div>