Cyber Resilience

CVE-2021-45837

CriticalPublic PoC

Published: 25 April 2022

Published
25 April 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.8108 99.2th percentile
Risk Priority 68 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-45837 is a critical-severity an unspecified weakness vulnerability in Terra-Master Tos. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

It is possible to execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) by sending a specifically crafted input to /tos/index.php?app/del.

CWE(s)
NVD-CWE-noinfo

Related Threats

Threat-Actor AttributionAI

Lazarus Group (G0032)
North Korea Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs | CISA
Andariel (G0138)
North Korea Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs | CISA
Storm-0530
North Korea Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs | CISA
Maui ransomware
North Korea Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs | CISA

Affected Assets

terra-master
tos
4.2.15-2107141517

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References