CVE-2020-3924

TONNET DVR – Firmware Injection

Description

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.

Remediation

Solution:

  • Update to ver. 20191216 in TAT-76 series Update to ver. 20200213 in TAT-77 series

Category

6.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.41%
Third-Party Advisory org.tw Third-Party Advisory chtsecurity.com
Affected: TONNET DVR
Affected: TONNET DVR
Published at:
Updated at:

References

Link Tags
https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf third party advisory
https://tvn.twcert.org.tw/taiwanvn/TVN-201910004 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-3924?
CVE-2020-3924 has been scored as a medium severity vulnerability.
How to fix CVE-2020-3924?
To fix CVE-2020-3924: Update to ver. 20191216 in TAT-76 series Update to ver. 20200213 in TAT-77 series
Is CVE-2020-3924 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-3924 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-3924?
CVE-2020-3924 affects TONNET DVR, TONNET DVR.
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