#VU49694 Man-in-the-Middle (MitM) attack in TOS - CVE-2020-28190

Vulnerability identifier: #VU49694

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-28190

CWE-ID: CWE-300

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TOS
Client/Desktop applications / Other client software

Vendor: TerraMaster

Description

The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.

The vulnerability exists due to the affected software update and applications are checked and delivered via un-encrypted communication channel (HTTP). A remote attacker can perform perform a man-in-the-middle attack and update the target software.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TOS: 4.2.06

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External links
https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/
https://www.terra-master.com/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.