A new cryptocurrency miner has been detected infecting servers worldwide. The miner, dubbed MassMiner, is exploiting several known vulnerabilities in its malicious campaigns:
- An Oracle WebLogic flaw known as CVE-2017-10271
- A Windows SMB flaw known as CVE-2017-0143
- An Apache Struts flaw known as CVE-2017-5638
How Is the MassMiner Campaign Infecting Users
According to researchers from AlienVault, this malicious campaign is using these exploits to infect unpatched and outdated systems to install the MassMiner Monero miner. The flaws are rated as highly efficient and their deployment shows that cybercriminals know very well what they are doing.
CVE-2017-10271 has already been exploited in other attacks. In February this year researchers detected a Monero miner targeting database servers using this vulnerability. Security reports show that the flaw is one of the most actively exploited against servers.
CVE-2017-0143 is another very popular exploit also known as EternalBlue which was leveraged by the NSA and was leaked online last year. The bug has been used in a number of famous ransomware campaigns such as WannaCry and NotPetya. In the context of the current MassMiner operation, cybercriminals are using the EternalBlue exploit to install the DoublePulsaw backdoor on unpatched systems.
As for the Apache Struts bug, CVE-2017-5638, it’s also a known and already leveraged bug. Previously, attackers were using CVE-2017-5638 to obtain nearly absolute control over web servers used by banks, government agencies, and big Internet companies. The attacks were disclosed in March 2017 by Vicente Motos from Hack Players, who wrote that “If you run it against a vulnerable application, the result will be the remote execution of commands with the user running the server”.
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*** This is a Security Bloggers Network syndicated blog from How to, Technology and PC Security Forum authored by Milena Dimitrova. Read the original post at: https://sensorstechforum.com/massminer-major-exploits-servers/