CVE-2021-45839 json
It is possible to obtain the first administrator's hash set up on the system in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) as…
published 2022-04-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32557
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 9.9%
- EPSS 9.9% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Metasploit
Summary
It is possible to obtain the first administrator's hash set up on the system in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) as well as other information such as MAC address, internal IP address etc. by performing a request to the /module/api.php?mobile/webNasIPS endpoint.
Timeline
- First public exploit (Metasploit exploit/linux/http/terramaster_unauth_rce_cve_2021_45837)
- Published
Exploit prediction
9.87% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/terramaster_unauth_rce_cve_2021_45837 TerraMaster TOS 4.2.15 or lower - RCE chain from unauthenticated to root via session crafting. metasploit exploit, excellent rank, 2021-12-24
- thatsn0tmy.site https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
References
Sources
- CVE List CVE-2021-45839
- NVD CVE-2021-45839
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