Questions and Answers
What is the primary goal of a reconnaissance attack?
Which of the following methodologies is most likely used during the reconnaissance phase of an attack?
What type of attack aims to overwhelm a network's resources, preventing legitimate users from accessing them?
During a reconnaissance attack, what does 'port scanning' specifically help the attacker to identify?
Signup and view all the answers
In network security, which of the following is considered a best practice?
Signup and view all the answers
What is the main purpose of packet sniffers?
Signup and view all the answers
What is a primary function of a ping sweep?
Signup and view all the answers
What type of attack uses the trusted relationship between systems to stage further attacks?
Signup and view all the answers
Which technique allows an attacker to capture user credentials by intercepting data in transit?
Signup and view all the answers
What can be revealed through Internet Information Queries?
Signup and view all the answers
How do brute force attacks primarily identify user credentials?
Signup and view all the answers
What method of reconnaissance involves physically accessing a location to gather information?
Signup and view all the answers
What is commonly used in password attacks to capture unencrypted passwords?
Signup and view all the answers
Which attack involves gaining unauthorized access by deceiving someone to reveal sensitive information?
Signup and view all the answers
What is the result of a successful trust exploitation attack?
Signup and view all the answers
Study Notes
Types of Network Attacks
-
Reconnaissance Attacks
- Also known as information gathering; unauthorized mapping of systems and services.
- Precedes Access and Denial of Service attacks.
- Involves techniques like ping sweeps and port scanning to discover active IP addresses and their services.
-
Access Attacks
- Unauthorized access to computers or network resources.
- Goals include data retrieval, access acquisition, and privilege escalation.
- Examples include password attacks, trust exploitation, and man-in-the-middle attacks.
-
Denial of Service (DoS) Attacks
- Overwhelm systems or resources to make them unavailable to users.
- Targets can include websites, servers, or entire networks.
Reconnaissance Attack Techniques
-
Packet Sniffers
- Capture all network packets over a LAN when NIC is in promiscuous mode.
- Can extract data from unencrypted network packets.
-
Ping Sweeps
- Scans a range of IP addresses to determine active hosts through ICMP echo requests.
- Returns ICMP echo replies from alive hosts.
-
Port Scanning
- Scans TCP/UDP port numbers on a host to detect listening services.
- Messages sent to each port identify if it's in use based on responses.
-
Internet Information Queries
- Querying Whois database reveals domain ownership and associated IP addresses.
- Provides contact information and technical details about the domain.
-
Low-Technology Reconnaissance
- Social Engineering: Manipulating individuals to divulge sensitive information unknowingly.
- Physical Break-ins: Gaining unauthorized access by walking through secured areas.
- Piggybacking: Connecting to a network without permission.
- Dumpster Diving: Searching trash for confidential documents or notes containing sensitive information.
Access Attack Methods
-
Password Attacks
- Use methods like brute force, Trojan horse programs, and packet sniffers.
- If successful, attackers gain the same access rights as compromised users.
-
Trust Exploitation
- Compromises a trusted host to attack other hosts; relies on established trust relationships between systems.
- Example: Attacker uses System B to impersonate System A to compromise additional systems.
-
Man-in-the-Middle Attack
- Attacker intercepts and alters communication between two hosts.
- Data modifications can occur without either host being aware of the interference.
Best Practices in Network Security
- Regular software and system updates to mitigate vulnerabilities.
- Implementation of firewalls and intrusion detection systems.
- Employee training on security protocols and social engineering awareness.
- Regularly changing passwords and using complex credential structures.
- Encrypt sensitive data in transit and at rest to protect against interception.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores various types of network attacks, including reconnaissance attacks, access attacks, and denial of service attacks. It also highlights best practices for ensuring robust network security. Test your understanding of these critical cybersecurity concepts.
