CVE-2021-45841

EPSS 8.3%

Vexday Risk Score

18Low

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Functional exploit

Automatable exploit available (Nuclei/Metasploit).

CVSS —EPSS 8.3%KEV nãoPoC —Nuclei —Metasploit simPatch —

Lifecycle

24 Dec 2021Metasploit module available

25 Apr 2022Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign session cookies by knowing the target's MAC address and the user's password hash. Guest users (disabled by default) can be abused using a null/empty hash and allow an unauthenticated attacker to login as guest.

Affected products

n/a · n/a

References

http://packetstormsecurity.com/files/172881/TerraMaster-TOS-4.2.15-Remote-Code-Execution.html https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/