StackGuard (as used by Immunix), ssp/ProPolice (as used by OpenBSD), and Microsoft's /GS option use _____ defense against buffer overflow attacks.
Canaries or canary words are known values that are placed between a buffer and control data on the stack to monitor buffer overflows. When the buffer overflows, it will clobber the canary, making the overflow evident. This is a reference to the historic practice of using canaries in coal mines, since they would be affected by toxic gases earlier than the miners, thus providing a biological warning system.
A buffer overflow occurs when a program or process tries to store more data in a buffer (temporary data storage area) then it was intended to hold.What is the most common cause of buffer overflow in software today?
Technically, a buffer overflow is a problem with the program's internal implementation.
What is SYSKEY # of bits used for encryption?
System Key hotfix is an optional feature which allows stronger encryption of SAM. Strong encryption protects private account information by encrypting the password data using a 128-bit cryptographically random key, known as a password encryption key.
Vulnerability mapping occurs after which phase of a penetration test?
The order should be Passive information gathering, Network level discovery, Host scanning and Analysis of host scanning.
Exhibit:
Given the following extract from the snort log on a honeypot, what service is being exploited? :
The connection is done to 172.16.1.104:21.
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