HIGH

CVE-2021-45841

CVSS v3

8.1

HIGH

EPSS Score

65.5%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

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.

Technical details

Published
4/25/2022

Frequently asked questions

What is CVE-2021-45841?

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.

Is CVE-2021-45841 actively exploited?

Active exploitation of CVE-2021-45841 has not been confirmed. The EPSS score is 65.5%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-45841?

CVE-2021-45841 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2021-45841 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.