Nmap vs Wireshark: a tool for network analysis | Safwan Elambilakat posted on the topic | LinkedIn (2024)

Network Scanning Tool: NmapNmap is an extremely helpful network scanning tool for administrators and security engineers. It gives the detailed view of devices, services, and vulnerability on a network. Nmap can be customized to administer inventories of networks, find risks, and monitor connectivity problems with its broad variety of scanning options. For getting a full picture about active hosts on a network, the capability to actively scan and detect OS is especially beneficial.The powerful scanning capabilities that Nmap provides are one of its biggest strengths. Nmap offers a wide range of scan types such as TCP syn scans, UDP scanning for deeper network assets inspection. Even advanced options such as script scanning find vulnerabilities. Its ability to scan a single IP, subnets or entire networks allows Nmap configuration for all types of networks (Punia & Aggarwal, 2021). Timely updates also keep Nmap up to date with the latest operating systems and services.Nevertheless, Nmap has some shortcomings. Considering the number of configuration options available, Nmap has a tough learning curve for entry-level users. It means that proper scanning implies knowing which scan types and flags to use in different situations. Scanning also presents a risk of detection by firewalls or IDS that might block Nmap or generate alerts (Punia & Aggarwal, 2021). Due to the installation need in every location, Nmap does not offer centralized management and reporting capabilities that may restrict vision of large environments. Even so, with proper knowledge Nmap becomes an indispensable tool for network audi

FXC AE1021/AE1021PEView CSAF1. EXECUTIVE SUMMARYCVSS v3 8.0ATTENTION: Exploitable remotely/low attack complexity/public exploits are available/known public exploitationVendor: FXCEquipment: AE1021, AE1021PEVulnerability: OS Command Injection2. RISK EVALUATIONSuccessful exploitation of this vulnerability could allow an attacker to achieve remote code execution on the device via NTP server settings.3. TECHNICAL DETAILS3.1 AFFECTED PRODUCTSThe following versions of FXC AE1021, a wireless LAN router, are affected:AE1021PE firmware: version 2.0.9 and earlierAE1021 firmware: version 2.0.9 and earlier3.2 Vulnerability Overview3.2.1IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78FXC AE1021/AE1021PE versions 2.0.9 and prior are vulnerable to a code injection that could allow an authenticated user to achieve remote code execution via NTP server settings.CVE-2023-49897has been assigned to this vulnerability. A CVSS v3.1 base score of 8.0 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).3.3 BACKGROUNDCRITICAL INFRASTRUCTURE SECTORS:Information Technology, Commercial FacilitiesCOUNTRIES/AREAS DEPLOYED:JapanCOMPANY HEADQUARTERS LOCATION:Japan3.4 RESEARCHERRyu Kuki, Takayuki Sasaki, and Katsunari Yoshioka of Yokohama National University reported this vulnerability to JPCERT/CC.Chad Seaman and Larry Cashdollar of Akamai Technologies reported this vulnerability to CISA.4. MITIGATIONSFXC released the following versions to address this vulnerability:AE1021PE firmware: version 2.0.10.AE1021 firmware: version 2.0.10.FXC recommends users apply the following settings:Reset "Factory setting" and change the default management screen login password.For more information, see FXC'spublication.For more information, see JPCERT/CC'ssecurity advisory.CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:Minimize network exposure for all control system devices and/or systems, ensuring they arenot accessible from the internet.Locate control system networks and remote devices behind firewalls and isolating them from business networks.When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.CISA also provides a section forcontrol systems security recommended practiceson the ICS webpage oncisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, includingImproving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.CISA encourages organization...

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What is Wireshark?Wireshark is a network protocol analyzer that allows you to capture and inspect the data traveling back and forth on a network in real-time. Released in 1998, Wireshark has grown into one of the most widely used tools for network troubleshooting, analysis, and security assessment. It supports a vast array of protocols, making it an indispensable tool for professionals in various fields.Key Features of Wireshark:Packet Capture:Wireshark captures packets flowing through a network interface, providing a detailed view of the data exchanged between devices.Protocol Support:Supports a plethora of protocols including HTTP, TCP, UDP, IP, ICMP, DNS, and many more. This versatility makes Wireshark applicable in a wide range of scenarios.Live Analysis:Provides real-time analysis capabilities, allowing users to inspect ongoing network activities as they happen.Filtering and Search:Enables users to apply filters to focus on specific types of traffic or conversations. The powerful display filters make it easier to pinpoint relevant information.Graphical Visualization:Presents packet data in a user-friendly graphical format, making it easier to comprehend complex network interactions.Use Cases of Wireshark:Network Troubleshooting:Wireshark aids in identifying and resolving network issues by providing an in-depth view of communication patterns, latency, and errors.Security Analysis:Security professionals use Wireshark to detect and analyze malicious activities, such as unauthorized access, data exfiltration, or suspicious network behavior.Application Performance Monitoring:Analyzing the communication between applications helps in optimizing performance and identifying bottlenecks in the network.Protocol Development:Wireshark is a valuable tool for protocol developers, allowing them to analyze how their protocols behave in real-world network conditions.Getting Started with Wireshark:Installation:Wireshark is available for Windows, macOS, and Linux. Download the appropriate version from the official website and follow the installation instructions.Capture Traffic:Open Wireshark and choose the network interface you want to capture traffic from. Click 'Start' to begin capturing packets.Analysis:Explore the captured packets using various filters and features. Drill down into specific packets to analyze their content and understand the communication between devices.Conclusion:Wireshark is not just a tool; it's a gateway to understanding the language of the internet. Whether you're a network administrator troubleshooting connectivity issues or a security professional investigating a potential breach, Wireshark provides invaluable insights into the world of network traffic. By mastering this powerful tool, you empower yourself to navigate the complexities of modern networking and security with confidence. Happy packet sniffing!#Wireshark #NetworkAnalysis #Cybersecurity#PacketSniffing #information

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Cisco Firepower Vulnerability Let Attackers Launch SQL Injection Attacks Cyber Security News ® A critical vulnerability has been identified in Cisco Firepower Management Center (FMC) Software’s web-based management interface.Learn more: https://lnkd.in/enKTuJen#cybersecuritynews #cisco #vulnerability

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🔎Day 22: Understanding Wireshark – The Network Traffic Analyzer🔍Welcome to Day 22 of your cybersecurity challenge! Today, we’re diving into Wireshark, a powerful and widely used network protocol analyzer. Understanding how to use Wireshark can significantly enhance your ability to troubleshoot network issues, analyze security incidents, and gain insights into network traffic.What is Wireshark?Wireshark is an open-source tool that captures and interacts with network packets in real-time. It’s commonly used by network administrators, cybersecurity professionals, and developers to monitor network traffic and analyze the data being transmitted across a network. With its extensive features, Wireshark allows users to inspect various protocols, troubleshoot network problems, and identify potential security threats.Key Features1. Packet Capture and Analysis: Wireshark captures packets of data as they travel over a network and displays them in a human-readable format. This allows you to inspect the contents of each packet and understand how data is being transmitted.2. Protocol Dissection: The tool supports hundreds of network protocols, breaking down complex data into understandable layers. This feature helps users see exactly how different protocols interact and how they might be contributing to network issues or vulnerabilities.3. Filters and Search Capabilities: Wireshark provides powerful filtering options that enable you to focus on specific packets or types of traffic. You can use display filters to narrow down the traffic to only what’s relevant to your analysis.4. Graphical User Interface (GUI): Its GUI allows users to view and analyze network traffic visually, making it easier to understand complex data. Users can see packet details in a structured format, including headers and payloads.5. Export Options: Captured data can be exported in various formats, such as CSV or XML, for further analysis or reporting. This feature is useful for creating detailed reports or integrating with other analysis tools. Practical Applications1. Network Troubleshooting: Identify bottlenecks, latency issues, or dropped packets by analyzing traffic patterns.2. Security Analysis: Detect suspicious activities, such as unusual traffic patterns or unauthorized connections, which may indicate potential security breaches.3. Protocol Development: Developers use Wireshark to test and debug network protocols and applications.Tips for Effective Use● Stay Organized: With large amounts of data, it’s easy to get overwhelmed. Use filters and save specific sessions to manage and analyze data more effectively.● Be Ethical: Ensure you have permission to capture and analyze network traffic, especially in environments that are not your own.Wireshark is a robust tool that can significantly enhance your understanding of network behavior and security.

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🚨🚨 Security Advisory 🚨🚨Summary:Cisco has addressed a critical vulnerability (CVE-2024-20419) in its Smart Software Manager On-Prem (SSM On-Prem) license servers, which allowed attackers to change any user’s password, including those of administrators. This flaw also affects SSM On-Prem installations earlier than Release 7.0, known as Cisco Smart Software Manager Satellite (SSM Satellite). The vulnerability, stemming from an unverified password change weakness, permits unauthenticated, remote attackers to set new passwords without knowing the original ones by sending crafted HTTP requests. There are no workarounds, and all administrators must upgrade to the fixed releases to secure their systems. Cisco has found no evidence of public exploits or attempts targeting this vulnerability. Additionally, Cisco recently patched another zero-day vulnerability (CVE-2024-20399).Remediations/Mitigations:• Upgrade to the fixed release versions of SSM On-Prem immediately.• Monitor Cisco's security advisories for updates.• Ensure all systems are running the latest firmware and patches.• Implement strict access controls and monitoring on vulnerable systems.• Regularly review and update incident response plans.

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Cisco Firepower Vulnerability Let Attackers Launch SQL Injection Attacks: A critical vulnerability has been identified in Cisco Firepower Management Center (FMC) Software’s web-based management interface. This vulnerability could potentially allow authenticated, remote attackers to conduct SQL injection attacks on affected systems. This vulnerability, tracked as CVE-2024-20360, poses significant risks, including unauthorized data access, command execution on the underlying operating system, and privilege escalation to […]The post Cisco Firepower Vulnerability Let Attackers Launch SQL Injection Attacks appeared first on GBHackers on Security | #1 Globally Trusted Cyber Security News Platform.

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Cisco Firepower Vulnerability Let Attackers Launch SQL Injection Attackshttps://lnkd.in/enKTuJen#Infosec #Security #Cybersecurity #CeptBiro #Cisco #Firepower #Vulnerability #SQLInjectionAttacks

6/100 #100daysofcycbersecuritychallenge.NMapNmap(short for Network Mapper) is a powerful and versatile open-source tool used for network discovery and security auditing.Created by Gordon Lyon (also known by his pseudonym Fyodor), Nmap is widely used by network administrators and security professionals to map out networks, discover hosts and services, and detect vulnerabilities12.Nmap is an essential tool for anyone involved in network security.Its extensive features and flexibility make it a go-to solution for network discovery, security auditing, and vulnerability detection.Key Features of Nmap :-Host Discovery: Identifies active devices on a network.Port Scanning: Enumerates open ports on target hosts.Service and Version Detection: Determines the services running on a host and their versions.OS Detection: Identifies the operating system and hardware characteristics of network devices.Scriptable Interaction: Uses the Nmap Scripting Engine (NSE) to automate tasks and extend functionality2.Basic UsageTo perform a simple scan of a target IP address or domain, you can use the following command:nmap scanme.nmap.orgThis command will scan the target for the 1000 most common ports2.Advanced Scanning TechniquesStealth Scan: Uses SYN packets to perform a stealthy scan, which is less likely to be detected by firewalls and intrusion detection systems.nmap -sS scanme.nmap.orgService Version Detection: Identifies the versions of services running on open ports.nmap -sV scanme.nmap.orgOperating System Detection: Determines the operating system of the target.nmap -O scanme.nmap.orgGraphical User InterfaceNmap also has a graphical user interface calledZenmap, which makes it easier to visualize scan results and manage complex scans2.Nmap is an essential tool for anyone involved in network security.Its extensive features and flexibility make it a go-to solution for network discovery, security auditing, and vulnerability detection.

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📡 What Is a PCAP File? (2024's Complete Tutorial)Have you ever wondered what captures the digital essence of network traffic? Enter the PCAP file – a fundamental component in the toolkit of any network analyst or cybersecurity professional.What is a PCAP File? PCAP (Packet Capture) files are incredibly valuable for recording and saving data traffic from a network. By capturing packets, these files provide a detailed view of the network's state at any given time, allowing for thorough analysis and troubleshooting.Why Are PCAP Files Important?* Network Diagnostics: Quickly identify and resolve network anomalies or performance issues.* Security Analysis: Detect and analyze malicious activities or policy violations within network traffic.* Forensic Investigations: Serve as evidence in cybersecurity investigations to trace back security incidents.Learning to Work with PCAP Files This article will guide you through:* Reading PCAP Files: Tools and techniques to open and interpret the contents.* Analyzing Network Traffic: How to extract valuable insights from the captured data.* Practical Applications: Real-world examples demonstrating the necessity and utility of PCAP files in various scenarios.Whether you are a seasoned network engineer or a novice cybersecurity enthusiast, understanding how to leverage PCAP files can significantly enhance your analytical capabilities.👉 Dive deeper into the world of PCAP files with our comprehensive tutorial: https://lnkd.in/eH8YVx3H Unlock the potential of network traffic analysis to bolster your technical skills and security posture!