![]() ![]() No products of Arcserve and StorageCraft, an Arcserve company are vulnerable to CVE-2021-44228 because they don’t use the Log4j versions identified as being at risk. Arcserve Recommended ResponsesĪrcserve is currently identifying product vulnerabilities and will alert customers as more information becomes available. Microsoft also published a warning about a new campaign from a China-based actor it tracks as DEV-0401 to exploit the Log4Shell vulnerability on VMware Horizon systems exposed on the internet, and deploy Night Sky ransomware. It has encrypted multiple victims, asking for an $800,000 ransom from one of them. Spotted in late December 2021 by security researcher MalwareHunterTeam, Night Sky ransomware focuses on locking enterprise networks. The threat actor is targeting vulnerable machines exposed on the public web from domains that impersonate legitimate companies, some of them in the technology and cybersecurity sectors. Update: Night Sky Ransomware Uses Log4j Bug to Hack VMware Horizon Serversīleeping Computer wrote this week that the Night Sky ransomware gang is exploiting the critical CVE-2021-44228 vulnerability in the Log4j logging library, also known as Log4Shell, to gain access to VMware Horizon systems. CISA has also released a new Log4j Vulnerability Playbook as a helpful visual guide for your response. CISA has also released an Apache Log4j scanning solution on GitHub to find vulnerable apps and issued a new alert today with more information on mitigating Log4Shell and other Log4j-related vulnerabilities. The Center for Internet Security offers detailed Log4j vulnerability response actions you can take to mitigate risks, while the Cybersecurity and Infrastructure Security Agency (CISA) has posted a continually updated Apache Log4j Vulnerability Guidance web page so you can be informed as new information becomes available. JNDI interfaces with several network services, including the Lightweight Directory Access Protocol (LDAP), Domain Name Service (DNS), Java’s Remote Method Invocation (RMI), and the Common Object Request Broker (CORBA). The targeted server will then execute that code via calls to the Java Naming and Directory Interface (JNDI). ![]() The vulnerability allows an attacker to inject text into log messages or to log message parameters into server logs that load code from a remote server. Prioritize internet-facing services first and immediately follow any update instructions. You should also urgently verify the presence and usage of vulnerable versions of Log4j in all of your applications, systems, and services across your environments. Applications that rely on this widely-used Java logging component expose your organization to potential remote code attacks and information exposure if they aren’t updated. Verify and Update Apache Server Applications NowĪrcserve urges you to update your server applications immediately. Because this vulnerability affects many services and applications on servers, it is extremely dangerous. ![]() ![]() The vulnerability- CVE-2021-44228 -was found in the logging system commonly used by developers of web and server applications based on Java and other programming languages. UPDATED: JanuA severe remote code vulnerability has been discovered in Apache’s Log4j versions 2.0-beta9 to 2.14.1. ![]()
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