What is CVE-2020-3924?

CVE-2020-3924 is a medium-severity vulnerability in Tonnet Dvr, classified under Command Injection. CVSS score: 6.4/10. Published 2020-02-27.

How severe is CVE-2020-3924?

Medium severity. CVSS v3 base score is 6.4 out of 10.

RCE in Tonnet Dvr

CVE-2020-3924

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.013 (66.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/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-77 — Command Injection

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-2020-3924?: CVE-2020-3924 is a medium-severity vulnerability in Tonnet Dvr, classified under Command Injection. CVSS score: 6.4/10. Published 2020-02-27.
How severe is CVE-2020-3924?: Medium severity. CVSS v3 base score is 6.4 out of 10.