Just before last Christmas and year-end holidays, Citrix announced that it is Citrix Application Delivery Controller (ADC) and Citrix Gateway are vulnerable. The vulnerability allows the attacker to execute arbitrary code on the servers. As the Network security expert, your company put you in charge of this case. Use your Network abilities to find the vulnerability and mitigate it.
Kaspersky Lab reports that A massive DNS cache poisoning attack attempting to infect users trying to access websites is currently underway in Brazil. Several large ISPs in the highly connected country have been affected by the attack. You have been tasked to identify details related to the attack to remediate any damage discovered in the identification phase.
An investment company in India was a victim of data exposure. By using a popular open-source email server software, which allowed a remote attacker to crash or potentially execute malicious code on the targeted servers. The Indian company hired you as the Network expert to find leads to the attack on their mail servers and mitigate it by hardening their distributions.
It was discovered that WhatsApp had a critical vulnerability that attackers exploited. Canadian trade company was a victim of the flaw when an attacker silently installed spyware using the vulnerability and targeted customers' phones by merely placing a WhatsApp video call with specially crafted requests. You need to investigate the case, using traffic logs that were monitored during the attack.
Cybersecurity researchers discovered evidence of Iranian state-sponsored hackers targeting dozens of companies such as IT, telecommunication, oil, gas, government, and security sectors in Israel. The attackers used the exploitation of unpatched VPN vulnerabilities to penetrate and steal information from the targets. Use your security skills to find mitigation for the unpatched VPN.