CVE-2022-28371

CVSS V2 None CVSS V3 High 7.5

Description

On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC endpoints rely on a static certificate for access control. This certificate is embedded in the firmware, and is identical across the fleet of devices. An attacker need only download this firmware and extract the private components of these certificates (from /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem) to gain access. (The firmware download location is shown in a device's upgrade logs.)

Overview

CVE ID
CVE-2022-28371

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-07-14T13:15:08

Last Modified Date
2022-07-21T02:02:28

Weakness Enumerations

CWE	URL
CWE-522	http://cwe.mitre.org/data/definitions/522.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:verizon:lvskihp_indoorunit_firmware:3.4.66.162:::::::*	1	OR
cpe:2.3:h:verizon:lvskihp_indoorunit:-:::::::*	0	OR
		AND
cpe:2.3:o:verizon:lvskihp_outdoorunit_firmware:3.33.101.0:::::::*	1	OR
cpe:2.3:h:verizon:lvskihp_outdoorunit:-:::::::*	0	OR

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://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.md
https://www.verizon.com/info/reportsecurityvulnerability/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-28371
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28371

History

Created	Old Value	New Value	Data Type	Notes
2022-07-14 14:00:15				Added to TrackCVE