CVE-2021-45841

CVSS V2 Medium 6.8 CVSS V3 High 8.1

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.

Overview

CVE ID
CVE-2021-45841

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-04-25T11:15:07

Last Modified Date
2022-05-05T17:08:56

Weakness Enumerations

CWE	URL
NVD-CWE-noinfo	http://cwe.mitre.org/data/definitions/NVD-noinfo.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:terra-master:tos:4.2.15-2107141517:::::::*	1	OR
cpe:2.3:h:terra-master:f2-210:-:::::::*	0	OR
cpe:2.3:h:terra-master:f4-210:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
6.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
HIGH

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.1

Base Severity
HIGH

Exploitability Score
2.2

Impact Score
5.9

References

Reference URL	Reference Tags
https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-45841
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45841

History

Created	Old Value	New Value	Data Type	Notes
2022-05-08 06:19:07				Added to TrackCVE