![]() 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. 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. 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. The Log4Shell vulnerability, tracked as CVE-2021-44228, is a critical remote code execution flaw in a widely used Java logging library called Log4j. An Iranian-aligned hacking group tracked as TunnelVision was spotted exploiting Log4j on VMware Horizon servers to breach corporate networks in the Middle. ![]() Huntress says companies with servers that have already been compromised. “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 VMware has advised Horizon users to update to new versions of the software with patches for the Log4Shell vulnerabilities. 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. UK’s National Health Service (NHS) has published a cyber alert warning of an unknown threat group targeting VMware Horizon deployments with Log4Shell exploits. According to multiple security researchers who spoke with ZDNet, evidence suggests the attackers used CVE-2019-5544 and CVE-2020-3992, two vulnerabilities in VMware ESXi, a hypervisor solution. “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. Vmware horizon hackers are under exploit. vulnerability affects VMware Horizon and Unified Access Gateway servers. 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. Hackers Still Exploiting Log4Shell Flaw in Unpatched VMware Servers, Feds Warn. ![]() 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). ![]()
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