A company contracted security consultant to perform a remote white box penetration test. The company wants...

A company contracted security consultant to perform a remote white box penetration test. The company wants the consultant to focus on internet-facing services without negatively impacting Production Services. Which of the following is the consultant most likely to use to identify the company's attack surface? Select 2

Web crawler
WHOIS registry
DNS records
companies firewall ACL
internal routing tables
directory service queries

Expert Solution

Solution for the above question

An attack surface is simply the possible number ways an attacker can get into the system. So to prevent such conditions, Consultant must use the following to identify the attack surface.

1. WHO IS registry :

WHOIS is a domain name internet registrar and they manages the reservations of internet domain names.
Using WHOIS, one can query multiple WHOIS databases on the internet locating the suspected IP allocations or finding the suspected domain names etc.

2. Company's firewall ACL

ACLs are used to permit or deny requests on the system.
Routers in our network has ACLs that filters traffic.
We always want to include a deny ip any any statement in our ACL at the end.
This is not necessary to drop traffic, but it does have the router keep statistics on the number of matches on this statement.
This can be useful in determining whether an attack is occurring.
ACLs are most common is determining DOS attacks.
Reasons why rest of the options are not preffered but they can help in some way.

1. Web Crawler :

Web crawler's job is to get the requested page in the internet.
And since web crawlers get infected or malicious and also the fact that they just get the pages and have no logs about it so there is no efficient way of extracting any information from the web crawler.

2.DNS record :

DNS Record provide information regarding domain names.
It can only be used to get the IP information about the domain names that are suspected.
Whereas WHOIS registry can give a lot more information that that.

3. Internet Routing Tables :

Routing tables just typicaly stores the routing addresses of all the routers in the networks.
They can only be used to know the address of an suspected router and nothing more.

4. Directory service queries :

They are used to extract information about the network addresses given we have the network resources or vice versa.
This is also not a great help in determining the attack surfaces.

venereology answered 9 months ago

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