Critical Bugs in TerraMaster TOS Could Open NAS Devices to Remote Hacking

Scientists have disclosed specifics of critical security vulnerabilities in TerraMaster network-attached storage (TNAS) equipment that could be chained to achieve unauthenticated distant code execution with the best privileges.

The issues reside in TOS, an abbreviation for TerraMaster Operating Process, and “can grant unauthenticated attackers entry to the victim’s box simply just by being aware of the IP tackle, Ethiopian cyber security investigate business Octagon Networks’ Paulos Yibelo claimed in a assertion shared with The Hacker Information.

TOS is the running method developed for TNAS appliances, enabling consumers to regulate storage, set up programs, and backup knowledge. Next accountable disclosure, the flaws ended up patched in TOS edition 4.2.30 produced very last week on March 1, 2022.

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1 of the issues, tracked as CVE-2022-24990, considerations a case of info leak in a element known as “webNasIPS,” resulting in the publicity of TOS firmware edition, the default gateway interface’s IP and MAC deal with, and a hash of the administrator password.

The next shortcoming, on the other hand, relates to a command injection flaw in a PHP module named “createRaid” (CVE-2022-24989), ensuing in a state of affairs the place the two issues can be stringed with each other to submit a specially-crafted command to achieve remote code execution.

“All in all, this was a incredibly intriguing project,” Yibelo stated. “We have utilised various elements of an info leak, along with a further data leak of the machine’s time, and chained it with an authenticated OS command injection to achieve unauthenticated remote code execution as root.

The disclosure comes as TerraMaster NAS gadgets have also been subjected to Deadbolt ransomware attacks, becoming a member of the likes of QNAP and ASUSTOR, with the corporation noting that it addressed the vulnerabilities that were possible exploited by the risk actors to deploy the ransomware in TOS model 4.2.30.

It’s not promptly distinct if the exact same established of vulnerabilities discovered by Octagon Networks have been weaponized for Deadbolt bacterial infections. We have reached out to TerraMaster for even further remark, and we will update the tale if we listen to back again.

“Fastened a security vulnerability associated to the Deadbolt ransomware attack,” the company famous, recommending buyers to “re-put in the most up-to-date variation of the TOS method (4.2.30 or later on) to stop unencrypted documents from continuing to be encrypted.

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