CVE-2020-3923
Tonnet TAT-76/77 DVR Weak Authentication
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.
INFO
Published Date :
Feb. 27, 2020, 4:15 a.m.
Last Modified :
July 21, 2021, 11:39 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-3923
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-3923.
| URL | Resource |
|---|---|
| https://tvn.twcert.org.tw/taiwanvn/TVN-201910003 | Third Party Advisory |
| https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-3923 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-3923 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-863 CWE-287 -
Initial Analysis by [email protected]
Mar. 03, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://tvn.twcert.org.tw/taiwanvn/TVN-201910003 No Types Assigned https://tvn.twcert.org.tw/taiwanvn/TVN-201910003 Third Party Advisory Changed Reference Type https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf No Types Assigned https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf Third Party Advisory Added CWE NIST CWE-863 Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-77104g1_firmware:*:*:*:*:*:*:*:* versions up to (including) tat-77104g1_20190107 OR cpe:2.3:h:tonnet:tat-77104g1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-70432n_firmware:*:*:*:*:*:*:*:* versions up to (including) tat-77208g1_20181225 OR cpe:2.3:h:tonnet:tat-70432n:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-71416g1_firmware:*:*:*:*:*:*:*:* versions up to (including) tat-71416g1_20181225 OR cpe:2.3:h:tonnet:tat-71416g1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-71832g1_firmware:*:*:*:*:*:*:*:* versions up to (including) tat-71832g1_20190510 OR cpe:2.3:h:tonnet:tat-71832g1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-76104g3_firmware:*:*:*:*:*:*:*:* versions up to (including) 20181220_76104g3 OR cpe:2.3:h:tonnet:tat-76104g3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-76108g3_firmware:*:*:*:*:*:*:*:* versions up to (including) 20181221_76208g3 OR cpe:2.3:h:tonnet:tat-76108g3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-76116g3_firmware:*:*:*:*:*:*:*:* versions up to (including) 20181221_76216g3 OR cpe:2.3:h:tonnet:tat-76116g3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:tonnet:tat-76132g3_firmware:*:*:*:*:*:*:*:* versions up to (including) tat-70832g3_20181221-1 OR cpe:2.3:h:tonnet:tat-76132g3:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 27, 2020
Action Type Old Value New Value Removed CVSS V3.1 [email protected] AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 TWCERT/CC AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-3923 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-3923
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.33 }} 0.00%
score
0.66282
percentile