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CVE-2020-28188 is an OS command injection vulnerability in TerraMaster TOS affecting version 4.2.06 and earlier. Insufficient validation of the event parameter in a PHP request handler allows remote, unauthenticated attackers to inject operating-system commands and compromise the NAS device. Some descriptions instead identify affected versions as earlier than 4.2.06; the identified fix version is 4.2.07.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting TerraMaster TOS (versions 4.2.06 and lower) for unauthenticated remote code execution (RCE) via CVE-2020-35665. The exploit abuses shell metacharacter injection in the 'Event' parameter of the '/include/makecvs.php' endpoint, allowing an attacker to upload a web shell or execute arbitrary commands without authentication. The module supports multiple payloads, including PHP meterpreter, Unix command reverse shell, and Linux binary droppers, and can automatically clean up artifacts after exploitation. It fingerprints the target's TOS version and CPU architecture via the '/tos/index.php?user/login' endpoint. The exploit is weaponized, providing reliable, repeatable RCE with post-exploitation capabilities. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting TerraMaster TOS 4.2.06 and earlier that Necro is still exploiting.
Unknown (content lists this CVE in activity tables without describing the vulnerability).
Vulnerability observed in exploitation telemetry (details not specified in the content).
The report identifies this vulnerability as an unauthenticated remote code execution route into NAS devices, enabling root access and deployment of LvtLocker ransomware.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.