Active Attacks Detected Using Apache Struts Vulnerability CVE-2018-11776
Just so everyone is aware. There is a new active vulnerability in Apache Struts. It is advised that everyone upgrade their Struts to the latest version to stop attacks. Default configs of Struts aren't affected. But if you've modified Struts you could be at risk. And curiously enough Struts are being infected with a coin miner.
Attackers infecting servers with coinminers
After analyzing some of these exploitation attempts, Volexity researchers say they were able to pinpoint the exact nature of these attacks. The company says the group behind these scans is using CVE-2018-11776 to break into Struts apps and contaminate the underlying server with a version of the CNRig cryptocurrency miner downloaded from a BitBucket repository. Right now, the attacks are small in scale, compared to other threat actors scanning for other vulnerabilities. "Wide-scale indiscriminate exploitation has still not yet been observed," Greynoise said earlier today. The reason, as Palo Alto Networks researchers have pointed out, is that Struts apps in their default configs are not vulnerable to CVE-2018-11776, meaning fewer servers are likely to be vulnerable, hence, the effort is not worth for many crooks.
So if you're an admin or developer using the software please update before you get pwn3d.