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CVE-2022-24990

TerraMaster OS Remote Command Execution

7.5 HIGHActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 83.2%
  1. Published7 Feb 2023
  2. Added to CISA KEV10 Feb 2023
  3. Remediation due3 Mar 2023
Actively exploited (CISA KEV)

TerraMaster OS contains a remote command execution vulnerability that allows an unauthenticated user to execute commands on the target endpoint.

Added to KEV: 10 Feb 2023Federal remediation due: 3 Mar 2023Used in ransomware

Description

TerraMaster NAS 4.2.29 and earlier allows remote attackers to discover the administrative password by sending "User-Agent: TNAS" to module/api.php?mobile/webNasIPS and then reading the PWD field in the response.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Terra-master Terramaster Operating System< 4.2.31

Remediation

Fixed in
Terra-master Terramaster Operating System≥ 4.2.31

References

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Frequently asked

Is CVE-2022-24990 being actively exploited?

Yes. CVE-2022-24990 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 10 Feb 2023. It has been used in ransomware campaigns.

How severe is CVE-2022-24990?

CVE-2022-24990 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 83.2% probability of exploitation.

Which products are affected by CVE-2022-24990?

Affected products include Terra-master Terramaster Operating System.

How do I fix CVE-2022-24990?

Upgrade affected software to a fixed version, for example Terra-master Terramaster Operating System 4.2.31 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-24990 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.