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🎣Unveiling the Secrets of Cloud Provider Metadata Through SSRF

In the realm of cybersecurity, Server-Side Request Forgery (SSRF) emerges as a cunning infiltrator, capable of unveiling the closely guarded secrets of cloud providers like AWS, Google Cloud, Azure, and DigitalOcean. This covert operation relies on the art of exploiting private addressing, cleverly concealed within each provider's documentation.

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AWS: Navigating the AWS Matrix

For AWS, the attacker's journey commences with a departure from the familiar realms of 'localhost' or '127.0.0.1,' and instead embarks on an odyssey towards the enigmatic '169.254.169.254' address—a portal to the AWS matrix of information. Here, a trove of valuable data awaits, including public keys, security credentials, hostnames, unique IDs, and much more.

  • Unmasking User Data: The attacker navigates the AWS labyrinth with URLs like:

https://target.com/page?url=http://169.254.169.254/latest/user-data

Unveiling hidden user data, like a cryptographer deciphering an ancient scroll.

  • IAM Credentials: The journey deepens as URLs reveal the hidden identities within AWS:

https://target.com/page?url=http://169.254.169.254/latest/user-data/iam/security-credentials/ROLE_NAME

Like a spy seeking covert aliases, the attacker discovers IAM security credentials.

  • Meta-Data Quest: The meta-data realms are rich with secrets to plunder:

https://target.com/page?url=http://169.254.169.254/latest/meta-data

Within, one can uncover a trove of insights, from hostnames to AMI IDs and more.

  • Public Key Pursuit: In this expedition, the attacker seeks the keys to the kingdom:

https://target.com/page?url=http://169.254.169.254/latest/meta-data/iam/security-credentials/aws-elasticbeanorastalk-ec2-role

Public keys, like mystical artifacts, are ready to be seized.

AWS's official documentation holds even more cryptic links, unveiling the full extent of their metadata treasure trove.

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DigitalOcean: Navigating the Digital Seas

Much like AWS, DigitalOcean sails the seas of '169.254.169.254,' guarding its secrets in the depths of metadata. Adventurers are encouraged to consult the documentation for further maps.

  • Metadata Mapping: URLs like this lead to the secrets of DigitalOcean's metadata:

Here, the attacker deciphers the JSON-encoded metadata, revealing invaluable information.

  • Identity Insights: Another trail to follow, hinting at identity revelations:

Identity data becomes a treasure trove waiting to be unearthed.

  • UserData Unveiled: The pursuit of user data continues:

What secrets lie within the user data vault?

  • Regional Revelations: Regional metadata exploration leads to uncharted territory:

Insights into the server's geographical context emerge.

  • Interface Intrigue: Investigating interfaces, a deeper understanding is achieved:

Even IPv6 addresses are laid bare for scrutiny.

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Azure and Oracle Cloud: Limited Yet Intriguing Secrets

Azure and Oracle Cloud, though more guarded in their revelations, harbor their own troves of concealed data, accessible through SSRF.

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Azure: Navigating Azure's Metadata

Azure's metadata can be unveiled with a specific header requirement: 'Metadata: true.' Once this entry point is secured, explorers can delve into the hidden domains.

  • Maintenance Insights: A glimpse into Azure's maintenance activities awaits:

Discover the behind-the-scenes operations that keep Azure running smoothly.

  • Instance Exploration: Further into the Azure labyrinth, uncover instance-specific metadata:

Dive into the unique characteristics of your Azure instance.

  • IP Address Intel: For those curious about IP addresses, Azure discloses IPv4 details:

Gain insights into public IP addresses associated with your Azure instance.

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Oracle Cloud: Unearthing Oracle's Mysteries

Oracle Cloud, with its secrets hidden behind the '192.0.0.192' address, invites intrepid explorers to uncover its concealed treasures.

  • Latest Discoveries: Begin your quest by accessing the latest revelations from Oracle Cloud:

Learn what's currently on offer from Oracle's digital realm.

  • Metadata Expedition: Venture deeper into the metadata territory:

Explore metadata that sheds light on the inner workings of Oracle Cloud.

  • User Data Quest: Seek user-specific data, a key to understanding Oracle's ecosystem:

Uncover the digital footprint left by users within Oracle Cloud.

  • Attributes Unveiled: Delve into attributes that define Oracle's digital landscape:

Gain a deeper understanding of the attributes that shape Oracle Cloud's operations.

As you embark on these expeditions into the hidden realms of Azure and Oracle Cloud, remember that with great knowledge comes great responsibility. While these discoveries provide insights, they also highlight the importance of safeguarding such sensitive information from unauthorized access and potential security threats.

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