CVE-2022-28371

Public Exploit

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.)

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.29%
Vendor Advisory verizon.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.verizon.com/info/reportsecurityvulnerability/ vendor advisory
https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2022-28371?
CVE-2022-28371 has been scored as a high severity vulnerability.
How to fix CVE-2022-28371?
To fix CVE-2022-28371, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-28371 being actively exploited in the wild?
It is possible that CVE-2022-28371 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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