CVE-2021-21955

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. Generic network sniffing can lead to password recovery. An attacker can sniff network traffic to trigger this vulnerability.

Overview

CVE ID
CVE-2021-21955

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2021-12-09T16:15:08

Last Modified Date
2022-09-03T03:32:35

Weakness Enumerations

CWE	URL
CWE-287	http://cwe.mitre.org/data/definitions/287.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:anker:eufy_homebase_2_firmware:2.1.6.9h:::::::*	1	OR
cpe:2.3:h:anker:eufy_homebase_2:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1382	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-21955
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21955

History

Created	Old Value	New Value	Data Type	Notes
2022-04-20 17:01:47				Added to TrackCVE
2022-12-06 03:28:46	2021-12-09T16:15Z	2021-12-09T16:15:08	CVE Published Date	updated
2022-12-06 03:28:46		2022-09-03T03:32:35	CVE Modified Date	updated
2022-12-06 03:28:46		Analyzed	Vulnerability Status	updated