Tag Archives: LDAP

How to get the Organization Units (OU) and Hosts from Microsoft Active Directory using Python ldap3

I recently figured out how to work with Microsoft Active Directory using Python 3. I wanted to get a hierarchy of Organizational Units (OUs) and all the network hosts associated with these OUs to search for possible anomalies. If you are not familiar with AD, here is a good thread about the difference between AD Group and OU.

It seems much easier to solve such tasks using PowerShell. But it will probably require a Windows server. So I leave this for the worst scenario. 🙂 There is also a PowerShell Core, which should support Linux, but I haven’t tried it yet. If you want to use Python, there is a choice from the native python ldap3 module and Python-ldap, which is a wrapper for the OpenLDAP client. I didn’t find any interesting high-level functions in Python-ldap and finally decided to use ldap3.

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Why Asset Management is so important for Vulnerability Management and Infrastructure Security?

When people ask me how should they start building Vulnerability Management process in their organization (well, sometimes it happens), I advice them to create an effective Asset Management process first. Because it’s the foundation of the whole Infrastructure Security.

Asset Management. Because someone has to clean up this mess.

The term “Asset Management” has different meanings and if you start to google it, you will get some results related mainly to finance sphere. I use this term as Qualys and Tenable. For me Asset Management is the process of dealing with network hosts.

So, what should you do in situation described in the tweet above, when you don’t know exactly how many Windows hosts you have in your corporate IT environment? And, more importantly, why do you need to know?

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