https://github.com/netflix-skunkworks/aws-metadata-proxy

AWS Metadata Proxy for protection against SSRF
https://github.com/netflix-skunkworks/aws-metadata-proxy

Last synced: 25 days ago
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AWS Metadata Proxy for protection against SSRF

• Host: GitHub
• URL: https://github.com/netflix-skunkworks/aws-metadata-proxy
• Owner: Netflix-Skunkworks
• Archived: true
• Created: 2018-09-17T00:10:18.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2020-03-03T18:19:56.000Z (almost 5 years ago)
• Last Synced: 2024-10-25T13:58:58.518Z (about 2 months ago)
• Language: Go
• Size: 1.95 KB
• Stars: 68
• Watchers: 118
• Forks: 19
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# AWS Metadata Proxy

Example AWS Metadata proxy to protect against attack vectors targetting AWS Credentials 

## Getting Started

Clone the repo

```

git clone https://github.com/Netflix-Skunkworks/aws-metadata-proxy.git

cd aws-metadata-proxy

```

Build the proxy

```golang

go get

go build

```

## Network Setup

Create an `iptable` rule that prevents talking directly to the AWS Metadata Service **except** for a particular user, `proxy_user` in the example below.  This is the user you run the proxy as on your server.

```

/sbin/iptables -t nat -A OUTPUT -m owner ! --uid-owner proxy_user -d 169.254.169.254 -p tcp -m tcp --dport 80 -j DNAT --to-destination 127.0.0.1:9090

```