What is CVE-2020-3923?

CVE-2020-3923 is a high-severity vulnerability in Tonnet Dvr, classified under Improper Authentication. CVSS score: 8.1/10. Published 2020-02-27.

How severe is CVE-2020-3923?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Tonnet Dvr

CVE-2020-3923

DVR firmware in TAT-76 and TAT-77 series of products, provided by TONNET, contain misconfigured authentication mechanism. Attackers can crack the default password and gain access to the system.

Vulnerability class: Broken Authentication

EPSS: 0.017 (74.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tonnet Dvr — versions 0
Tonnet Tat-70432n
Tonnet Tat-70432n_firmware
Tonnet Tat-71416g1
Tonnet Tat-71416g1_firmware
Tonnet Tat-71832g1
Tonnet Tat-71832g1_firmware
Tonnet Tat-76104g3
Tonnet Tat-76104g3_firmware
Tonnet Tat-76108g3

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)
twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-3923?: CVE-2020-3923 is a high-severity vulnerability in Tonnet Dvr, classified under Improper Authentication. CVSS score: 8.1/10. Published 2020-02-27.
How severe is CVE-2020-3923?: High severity. CVSS v3 base score is 8.1 out of 10.