![]() ![]() This made it very hard and time consuming for security teams to discover, track and patch all instances of the flaw on their networks, especially since they depended on fixes being released by a wide range of software vendors. Reports emerged over the weekend that VMware ESXi servers left vulnerable and unpatched against a remotely exploitable bug from 2021 were compromised and scrambled by a ransomware variant dubbed. However, security experts warned at the time that the issue will likely have a long-term impact since Log4j was used in millions of Java-based corporate applications and third-party products. Attackers developed an exploit within 48 hours and the cybersecurity agency had instructed federal agencies to patch the flaws by May 5 and May 6. The vulnerability was originally reported in late November as a zero-day and was patched in Log4j on December 6, triggering an industry-wide patch and mitigation response. Vmware horizon hackers are under exploit. Successful exploitation of this issue may allow unprivileged users to escalate their privileges to root on the Mac OSX system where the client is installed. The Log4Shell vulnerability, tracked as CVE-2021-44228, is a critical remote code execution flaw in a widely used Java logging library called Log4j. VMware Horizon View Client (2.x, 3.x and 4.x prior to 4.5.0) contains a command injection vulnerability in the service startup script. (Jaiz Anuar / Getty Images) Huntress reports that attackers have started to exploit the Log4Shell vulnerabilities revealed in December 2021 on servers running VMware Horizon to deploy. “During remote support, CISA confirmed the organization was compromised by malicious cyber actors who exploited Log4Shell in a VMware Horizon server that did not have patches or workarounds applied.” The long tail of Log4Shell ![]() “From May through June 2022, CISA provided remote incident support at an organization where CISA observed suspected Log4Shell PowerShell downloads,” the agency said in a report this week. Combined with other reports, this suggests VMware. The agency published indicators of compromise (IOCs) collected from incidents it investigated as recently as June, highlighting the long-lasting impact of this vulnerability that’s over six months old. VMware Horizon servers are under active exploit by Iranian state hackers TunnelVision group exploits critical Log4j flaw to infect targets with ransomware. Starting in late December, Red Canary researchers observed a notable increase in threat actor exploits of vulnerable VMware Horizon servers. ![]() The US Cybersecurity and Infrastructure Security Agency (CISA) has been investigating attacks exploiting the Log4Shell vulnerability in third-party products like VMware Horizon and Unified Access Gateway (UAG). TunnelVision, an Iranian-affiliated hacker group, was detected attacking Log4j on VMware Horizon servers to compromise corporate networks in the Middle East and the United States. ![]()
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