Security News > 2021 > April > QNAP NAS devices under ransomware attack

QNAP NAS device owners are once again under attack by ransomware operators, who are exploiting a recently fixed vulnerability to lock data on vulnerable devices by using the 7-Zip open-source file archiver utility.

CVE-2020-36195, an SQL injection vulnerability affecting QNAP NAS running Multimedia Console or the Media Streaming add-on.

QNAP initially believed that the ransomware operation called Qlocker exploited CVE-2020-36195 to gain access to internet-connected NAS devices and lock users' data, but it turned out to be CVE-2021-28799.

Those lucky QNAP NAS owners that have not yet been hit by the attackers are advised to implement the offered updates to stymie these and other ransomware gangs.

"The QNAP security team has detected suspicious ransomware in the wild known as AgeLocker, which has the potential to affect QNAP NAS devices," QNAP warned on Thursday, but did not say which vulnerabilities the attackers are exploiting.

"To secure your device, we strongly recommend regularly updating QTS or QuTS hero and all installed applications to their latest versions to benefit from vulnerability fixes. You can check the product support status to see the latest updates available to your NAS model. To further secure your device, do not expose your NAS to the internet. If you must connect your NAS to the internet, we highly recommend using a trusted VPN or a myQNAPcloud link."

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