CVE-2022-24990 — TerraMaster OS Remote Command Execution Vulnerability

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2023-02-10. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-02-07T00:00:00.000Z
• Last modified: 2025-10-21T23:15:27.378Z
• Added to CISA KEV: 2023-02-10
• BOD 22-01 due: 2023-03-03

09References

• forum.terra-master.com — https://forum.terra-master.com/en/viewforum.php?f=28
• www.broadcom.com — https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=33…
• github.com — https://github.com/0xf4n9x/CVE-2022-24990
• octagon.net — https://octagon.net/blog/2022/03/07/cve-2022-24990-terrmaster-tos-unauthenticate…
• packetstormsecurity.com — http://packetstormsecurity.com/files/172904/TerraMaster-TOS-4.2.29-Remote-Code-E…