VulnHub

React2Shell is being actively exploited by attackers who are taking advantage of a serious security flaw in React Server Components (RSC). Recent research from Huntress reveals that these exploits are being used to deploy cryptocurrency miners and several new types of malware. Notable among the malware is PeerBlight, a backdoor for Linux systems, and CowTunnel, a reverse proxy tunnel. This situation poses significant risks to organizations using RSC, as the vulnerabilities could allow unauthorized access and control over affected systems. Companies in various sectors should be vigilant and take steps to protect their infrastructure from these emerging threats.

North Korea-linked cyber actors are exploiting a recently identified vulnerability in React Server Components known as React2Shell to deploy a new remote access trojan called EtherRAT. This malware utilizes Ethereum smart contracts to manage command-and-control communications and can establish multiple persistence mechanisms on Linux systems. The emergence of EtherRAT marks a concerning development as it allows attackers to maintain access to compromised systems. Companies using React Server Components need to be vigilant and update their systems to mitigate this risk. The situation emphasizes the ongoing threat posed by state-sponsored hacking groups and the importance of timely patching of known vulnerabilities.