Vulnerability 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 account username/password for access control. This password can be generated via a binary included in the firmware, after ascertaining the MAC address of the IDU's base Ethernet interface, and adding the string DEVICE_MANUFACTURER='Wistron_NeWeb_Corp.' to /etc/device_info to replicate the host environment. This occurs in /etc/init.d/wnc_factoryssidkeypwd (IDU).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Verizon | Lvskihp Indoorunit Firmware | 3.4.66.162 |
| Verizon | Lvskihp Indoorunit | - |
| Verizon | Lvskihp Outdoorunit Firmware | 3.33.101.0 |
| Verizon | Lvskihp Outdoorunit | - |
Related Weaknesses (CWE)
References
- https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20ModemExploitThird Party Advisory
- https://www.verizon.com/info/reportsecurityvulnerability/Vendor Advisory
- https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20ModemExploitThird Party Advisory
- https://www.verizon.com/info/reportsecurityvulnerability/Vendor Advisory
FAQ
What is CVE-2022-28377?
CVE-2022-28377 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 account username/password for access control. This pass...
How severe is CVE-2022-28377?
CVE-2022-28377 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-28377?
Check the references section above for vendor advisories and patch information. Affected products include: Verizon Lvskihp Indoorunit Firmware, Verizon Lvskihp Indoorunit, Verizon Lvskihp Outdoorunit Firmware, Verizon Lvskihp Outdoorunit.