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Citrix has finally started rolling out security patches for a critical vulnerability in ADC and Gateway software that attackers started exploiting in the wild earlier this month after the company announced the existence of the issue without releasing any permanent fix. I wish I could say, "better late than never," but since hackers don't waste time or miss any opportunity to exploit vulnerable systems, even a short window of time resulted in the compromise of hundreds of Internet exposed Citrix ADC and Gateway systems. As explained earlier on The Hacker News, the vulnerability, tracked as CVE-2019-19781 , is a path traversal issue that could allow unauthenticated remote attackers to execute arbitrary code on several versions of Citrix ADC and Gateway products, as well as on the two older versions of Citrix SD-WAN WANOP. Rated critical with CVSS v3.1 base score 9.8, the issue was discovered by Mikhail Klyuchnikov, a security researcher at Positive Technologies, w...

Testing security controls is the only way to know if they are truly defending your organization. With many different testing frameworks and tools to choose from, you have lots of options. But what do you specifically want to know? And how are the findings relevant to the threat landscape you face at this moment? "Decide what you want to know and then choose the best tool for the job." Security teams typically use several different testing tools to evaluate infrastructure. According to SANS , 69.9% of security teams use vendor-provided testing tools, 60.2% use pen-testing tools, and 59.7% use homegrown tools and scripts. While vendor-provided tools test a specific security solution—whether it's a web application firewall (WAF), EDR solution, or something else—pen testing is frequently used to verify that controls meet compliance requirements, such as PCI DSS regulations, and by red teams as part of broader testing assessments and exercises. Automated pen test...

Internet Explorer is dead, but not the mess it left behind. Microsoft earlier today issued an emergency security advisory warning millions of Windows users of a new zero-day vulnerability in Internet Explorer (IE) browser that attackers are actively exploiting in the wild — and there is no patch yet available for it. The vulnerability, tracked as CVE-2020-0674 and rated moderated, is a remote code execution issue that exists in the way the scripting engine handles objects in memory of Internet Explorer and triggers through JScript.dll library. A remote attacker can execute arbitrary code on targeted computers and take full control over them just by convincing victims into opening a maliciously crafted web page on the vulnerable Microsoft browser. "The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as...

Penetration tests have long been known as a critical security tool that exposes security weaknesses through simulated attacks on an organization's IT environments. These test results can help prioritize weaknesses, providing a road-map towards remediation. However, the results are also capable of doing even more. They identify and quantify security risk, and can be used as a keystone in cybersecurity policies. The same can be said about broader penetration testing practices. Organizations gain real value from learning about others' penetration testing experiences, trends, and the role they play in today's threat landscape. The world of pen testing can be an interesting balance of open collaboration and closely guarded privacy. While pen testers may engage in teaming exercises, or happily talk technique when they attend Black Hat, most organizations are extremely reluctant when it comes to discussing their pen testing practices and results. Of course, confidentia...

Great news for iOS users! You can now use your iPhone or iPad, running iOS 10 or later, as a physical security key for securely logging into your Google account as part of the Advanced Protection Program for two-factor authentication. Android users have had this feature on their smartphones since last year, but now Apple product owners can also use this advanced, phishing-resistant form of authentication as an alternative to a physical security key. Adding extra security later of two-step authentication is one of the more essential steps you can take to secure your online accounts, which makes it harder for attackers to log in to your account, especially when they steal your password. "According to a study we [Google] released last year, people who exclusively used security keys to sign into their accounts never fell victim to targeted phishing attacks," said Shuvo Chatterjee, Product Manager at Google's Advanced Protection Program. Google recently update...