by Kastro
Paper/Archive/CVE-2020-3924

CVE-2020-3924

TONNET DVR — TONNET DVR – Firmware Injection

EPSS 1%CVSS 9.8
critical.is priorityof 100
43
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 69.6.696 × 2013.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

DVR firmware in TAT-76 and TAT-77 series of products, provided by TONNET do not properly verify patch files. Attackers can inject a specific command into a patch file and gain access to the system.

Affected

ProductAffectedFixed inSource
DVR≤ 20191216–CNA
DVR≤ 20200213–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
twcert (CNA)6.4CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

References

refchtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcfreftvn.twcert.org.tw/taiwanvn/TVN-201910004