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GIAC Exam GSNA Topic 1 Question 13 Discussion
Actual exam question for
GIAC's
GSNA exam
Question #: 13
Topic #: 1
[All GSNA Questions]
Topic #: 1
Which TCP and UDP ports can be used to start a NULL session attack in NT and 2000 operating systems?
Suggested Answer:
C
A null session is an anonymous connection to a freely accessible network share called IPC$ on Windows-based servers. It allows immediate
read and write access with Windows NT/2000 and read-access with Windows XP and 2003.
The command to be inserted at the DOS-prompt is as follows:
net use \IP address_or_host nameipc$ '' '/user:'
net use
Port numbers 139 TCP and 445 UDP can be used to start a NULL session attack.
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