Arbitrary file upload in Verizon Lvskihp Indoorunit
CVE-2022-28372
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 provide a means of provisioning a firmware update for the device via crtc_fw_upgrade or crtcfwimage. The URL provided is not validated, and thus allows for arbitrary file upload to the device. This occurs in /lib/lua/luci/crtc.lua (IDU) and /lib/functions/wnc_jsonsh/wnc_crtc_fw.sh (ODU).
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Verizon Lvskihp Indoorunit
- Verizon Lvskihp Indoorunit Firmware — versions 3.4.66.162
- Verizon Lvskihp Outdoorunit
- Verizon Lvskihp Outdoorunit Firmware — versions 3.33.101.0
Weakness classification (CWE)
References
- www.verizon.com/info/reportsecurityvulnerability/ (Vendor Advisory)
- github.com/JousterL/SecWriteups/blob/main/Verizon LVSKIHP 5G Modem/readme.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-28372?
- CVE-2022-28372 is a high-severity vulnerability in Verizon Lvskihp Indoorunit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2022-07-14.
- How severe is CVE-2022-28372?
- High severity. CVSS v3 base score is 7.5 out of 10.