CVE-2020-28188
CriticalExploitedPublic exploitRemote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.
Published Dec 24, 2020 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2020-28188 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Tos (Terra-Master).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jan 19, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 96% probability of exploitation in the next 30 days.
- Fixed versions are available, including Tos <=4.2.06, Tos 4.2.06.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
96%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 19, 2021 | n/a | Known |
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| TosTerra-Master | See advisory | 4.2.06 |
Patched Releases
Tos
<=4.2.06
Timeline
Publicly disclosed
Dec 24, 2020
Added to Industry KEV feed
Jan 19, 2021
Added to CIRCL KEV
Oct 14, 2023
Last updated
Nov 21, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://www.terra-master.com/
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.
Affected: Tos (Terra-Master). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jan 19, 2021 and is known to be used in ransomware campaigns.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Tos <=4.2.06, Tos 4.2.06.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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