Microsoft have just released version 181 of Cloud App Security. In this release we have 1 new item and a name change.
New Cloud Discovery Menlo Security log parser Cloud App Security Cloud Discovery analyzes a wide range of traffic logs to rank and score apps. Now Cloud Discovery includes a built-in log parser to support the Menlo Security CEF format. For a list of supported log parsers, see Supported firewalls and proxies.
Azure Active Directory (AD) Cloud App Discovery name displays in portal For Azure AD P1 and P2 licenses, we’ve updated the product name in the portal to Cloud App Discovery. Learn more about Cloud App Discovery.
I have been recently investigating Cloud App Security how it can benefit organizations already paying for this functionality without even knowing. Do you already pay for the following Microsoft licenses?
Log process flow: From raw data to risk assessment
The process of generating understanding the risk within your organisation from a Cloud Securtity starts here with the following. You can upload data to Cloud App Security and the process takes between a few minutes to several hours depending on the amount of data processed.
Upload – Web traffic logs from your network are uploaded to the portal.
Parse – Cloud App Security parses and extracts traffic data from the traffic logs with a dedicated parser for each data source.
Analyze – Traffic data is analyzed against the
Cloud App Catalog to identify more than 16,000 cloud apps and to assess
their risk score. Active users and IP addresses are also identified as
part of the analysis.
Generate report – A risk assessment report of the data extracted from log files is generated.
Continuous report data is analyzed twice a day.
Supported firewalls and proxies
Cloud App Security support data uploads from the following Firewalls and Proxies.
Barracuda – Web App Firewall (W3C)
Blue Coat Proxy SG – Access log (W3C)
Cisco ASA with FirePOWER
Cisco ASA Firewall (For Cisco ASA firewalls, it’s necessary to set the information level to 6)
Cisco Cloud Web Security
Cisco IronPort WSA
Cisco Meraki – URLs log
Clavister NGFW (Syslog)
Digital Arts i-FILTER
iboss Secure Cloud Gateway
McAfee Secure Web Gateway
Microsoft Forefront Threat Management Gateway (W3C)
Palo Alto series Firewall
Sonicwall (formerly Dell)
Websense – Web Security Solutions – Investigative detail report (CSV)
Websense – Web Security Solutions – Internet activity log (CEF)
Automatic Risk Assessment
Cloud App Security also enables organizations to automatically discovery the Cloud Apps in use via actives on your firewall logs. This is done via Log Collectors that allows organizations upload logs to Cloud App Security. Every single long is automatically transfers to the portal, there is 2 different behaviours if you are using FTP or Syslog
FTP logs are uploaded to Microsoft Cloud App Security after the file finished the FTP transfer to the Log Collector
The Log Collector writes the received logs to the disk. Then the collector uploads the file to Cloud App Security when the file size is larger than 40 KB
App connectors use APIs from cloud app providers to integrate the
Cloud App Security cloud with other cloud apps. App connectors extend
control and protection. They also give you access to information
directly from cloud apps, for Cloud App Security analysis.
To connect an app and extend protection, the app administrator
authorizes Cloud App Security to access the app. Then, Cloud App
Security queries the app for activity logs, and it scans data, accounts,
and cloud content. Cloud App Security can enforce policies, detects
threats, and provides governance actions for resolving issues.
So how does the look from the portal?
Lets connect Office 365 for the purpose of this post.
Conditional Access App Control protection
Microsoft Cloud App Security Conditional Access App Control uses reverse proxy architecture to give you the tools you need to have real-time visibility and control over access to and activities performed within your cloud environment. With Conditional Access App Control, you can protect your organization:
Avoid data leaks by blocking downloads before they happen
Set rules that force data stored in and downloaded from the cloud to be protected with encryption
Gain visibility into unprotected endpoints so you can monitor what’s being done on unmanaged devices
Control access from non-corporate networks or risky IP addresses
With Conditional Access App Control protection you can define you want to Monitor what is being accessed or block.
When configured you will notice the below appear for all access control applications
Once you have configured the basics above the next steps is to enable policies you would like run within your environment. Out of the box you will receive a number policies deemed appropriate from Microsoft but there may be additions ones you would like for example;
In my environment I have created a policy that check for OneDrive Documents shared outside my business to specific domains
This policy also has the power to remove the external user to prevent access and this is where Cloud App Security really comes into its own. As it allows organisations and IT Administrators to the power to real take control of corporate data.