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Fencer Vulns
critical 9.8

CVE-2022-24989 in the critical feed json

TerraMaster NAS through 4.2.30 allows remote WAN attackers to execute arbitrary code as root via the raidtype and diskstring parameters for…

published 2023-08-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-29736

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
31.9%
EPSS 31.9% chance of exploitation in 30 days, percentile 98%
public exploits
1
Metasploit

Summary

TerraMaster NAS through 4.2.30 allows remote WAN attackers to execute arbitrary code as root via the raidtype and diskstring parameters for PHP Object Instantiation to the api.php?mobile/createRaid URI. (Shell metacharacters can be placed in raidtype because popen is used without any sanitization.) The credentials from CVE-2022-24990 exploitation can be used.

Patch / fix

  • terra-master terramaster_operating_system 4.2.31

Timeline

  1. First public exploit (Metasploit exploit/linux/http/terramaster_unauth_rce_cve_2022_24990)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

31.88% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/http/terramaster_unauth_rce_cve_2022_24990 TerraMaster TOS 4.2.29 or lower - Unauthenticated RCE chaining CVE-2022-24990 and CVE-2022-24989 metasploit exploit, excellent rank, 2022-03-07
  • github.com https://github.com/0xf4n9x/CVE-2022-24990 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com https://packetstormsecurity.com/files/172904 referenced PoC, tagged "exploit" by a source, unverified
  • octagon.net https://octagon.net/blog/2022/03/07/cve-2022-24990-terrmaster-tos-unauthenticated-remote-command-execution-via-php-object-instantiation referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • terra-master terramaster_operating_system

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.