CVE-2020-3923 TONNET DVR – Broken Access Control
Attackers can bypass authentication by cracking default passwords to gain unauthorized access to TONNET DVR systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3923?
CVE-2020-3923 is a high-severity authentication bypass vulnerability in TONNET DVR, published on 27 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2020-3923?
It affects 8 products.
Products include Tonnet Tat-70432n Firmware, Tonnet Tat-71416g1 Firmware, Tonnet Tat-71832g1 Firmware, Tonnet Tat-76104g3 Firmware, Tonnet Tat-76108g3 Firmware, Tonnet Tat-76116g3 Firmware and 2 more.
How do I fix CVE-2020-3923?
No fix has been published for CVE-2020-3923 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-3923 being exploited?
There is no known exploitation of CVE-2020-3923 in the wild and no public exploit code.
Other vulnerabilities in TONNET DVR
Sources
Also known as GHSA-jvq4-xpx6-3rjc.