Home Security Unpatched Oracle WebLogic servers targeted for mining

Malicious attackers are targeting a patched vulnerability in Oracle's WebLogic server, targeting TCP port 7001 for the purpose of mining cryptocurrencies, the security firm Trend Micro has reported.

The company said in a blog post it had observed a marked rise in the number of devices scanning this port.

It said analysis had shown that this was aimed at the Oracle WebLogic WLS-WSAT vulnerability that allows the execution of arbitrary code on unpatched servers.

The vulnerability was exploited in a manner similar to the way one in Apache's CouchDB was exploited in February, and thus it was possible that the same group was targeting WebLogic now.

This is the second time this year that the vulnerability has been targeted; in February, it was exploited to deliver 64-bit and 32-bit variants of an XMRig monero miner, Trend Micro said.

Oracle issued a patch for the flaw in October 2017.

Researcher Hubert Lin said only 155 scans had been noticed between 8 and 26 April, but the number had grown to 2640 between 27 April and 9 May, mostly from IP addresses that were based in China and Russia.

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Sam Varghese

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A professional journalist with decades of experience, Sam for nine years used DOS and then Windows, which led him to start experimenting with GNU/Linux in 1998. Since then he has written widely about the use of both free and open source software, and the people behind the code. His personal blog is titled Irregular Expression.

 

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