Weak Access Control in Verizon 5G Home Devices
CVE-2022-28377

7.5HIGH

Key Information:

Vendor

Verizon

Status
LvskiHP Indoorunit Firmware
Vendor
CVE Published:
14 July 2022

What is CVE-2022-28377?

Verizon 5G Home devices, specifically the InDoorUnit (IDU) and OutDoorUnit (ODU), exhibit a serious access control vulnerability due to reliance on static username and password combinations for the CRTC and ODU RPC endpoints. An attacker can generate this password using included firmware binaries by manipulating the MAC address of the IDU's base Ethernet interface, leading to potential unauthorized access and exploitation of the device's functionalities. This issue underscores the necessity for improved access controls and prompt firmware updates to mitigate risks associated with static credential usage.

References

https://www.verizon.com/info/reportsecurityvulnerability/
x_refsource_MISC
https://github.com/JousterL/SecWriteups/blob/main/Verizon...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.