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AgeLocker ransomware operation targets QNAP NAS devices

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2020-2506
Unauthenticated Improper Access Control in QNAP Helpdesk for QTS

CVE-2020-2506 is an improper access control flaw (CWE-284) in the QNAP Helpdesk application used with QTS, affecting Helpdesk versions prior to 3.0.3. The flaw is network-exploitable with no privileges or user interaction required per the CVSS 3.1 vector, so a remote attacker can trigger it by sending crafted requests to a device running a vulnerable Helpdesk version. Successful exploitation lets the attacker gain privileges or read sensitive information, compromising the security of the affected software. Any QNAP NAS running QTS with the Helpdesk app at a version below 3.0.3 is affected. The flaw was added to CISA's KEV catalog on 2022-03-25, confirming exploitation in the wild (EPSS currently estimates a ~2% probability of exploitation in the next 30 days, 79th percentile, and no public PoC is known); QNAP NAS broadly remain targeted by ransomware and cryptomining campaigns, though those headline campaigns are not specifically tied to this CVE.

Do: Update the QNAP Helpdesk app to version 3.0.3 or later via QTS App Center, per vendor instructions, as required by the CISA KEV listing; verify the installed Helpdesk version first. If the app is not needed, disable or remove it, and avoid exposing the NAS management interface and Helpdesk service directly to the internet. Given active ransomware and cryptomining campaigns against QNAP NAS, treat unpatched internet-facing QTS devices as high priority and review access logs for suspicious activity.

9.82% KEV
  • QNAP Helpdesk prior to 3.0.3 (QNAP application running on QTS)
largetens of thousands to low hundreds of thousands of internet-exposed QNAP NAS devices running a vulnerable Helpdesk app (estimate)
CVE-2020-2507
The vulnerability have been reported to affect earlier versions of QTS.

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.

NVD description · AI analysis pending
9.83%
  • qnap helpdesk
Full article455 words · extracted from securityaffairs.com · click to collapse

Taiwanese vendor QNAP is warning its customers of AgeLocker ransomware attacks on their NAS devices.

Crooks behind the AgeLocker ransomware operation are targeting QNAP NAS devices, the Taiwanese vendor warns. The vendor doesn’t provide technical details of the attacks, it is not clear if the ransomware gang exploited know vulnerabilities.

“The QNAP security team has detected suspicious ransomware in the wild known as AgeLocker, which has the potential to affect QNAP NAS devices.” reads the security advisory published by the vendor.

The vendor is urging customers to immediately update the operating system of their NAS devices. It also recommends updating the apps running on the NAS that could be exploited as an entry point for attackers.

“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.” continues the advisory. “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.”

QNAP NAS devices continue to be under attack, earlier March, researchers at 360Netlab warned of a cryptocurrency malware campaign targeting unpatched QNAP network-attached storage (NAS) devices.

Threat actors were exploiting two unauthorized remote command execution vulnerabilities, tracked as CVE-2020-2506 & CVE-2020-2507, in the Helpdesk app that have been fixed by the vendor in October 2020.

In January, the Taiwanese vendor QNAP published a security advisory to warn customers of a new piece of malware named Dovecat that was targeting NAS devices. The malware was designed to abuse NAS resources and mine cryptocurrency.

In December, QNAP released security updates to fix eight vulnerabilities that could be exploited by attackers to over unpatched NAS devices.

The list of vulnerabilities addressed by QNAP is available here, it includes XSS and command injection issues. The flaws fixed by the vendor are rated as medium and high severity security.

In September, while the AgeLocker ransomware was continuing to target QNAP NAS systems, the Taiwanese vendor urged customers to update the firmware and apps.

In early August, the Taiwanese company urged its users to update the Malware Remover app to prevent NAS devices from being infected by the QSnatch malware.

In June the company also warned of eCh0raix ransomware attacks that targeted its NAS devices.

QNAP NAS devices were also targeted by Dovecat and UnityMiner crypto-miners operations.

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Pierluigi Paganini

(SecurityAffairs – hacking, QNAP)

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