TONNET TAT-76/TAT-77 Authentication Mechanism improper authentication

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

A vulnerability was found in TONNET TAT-76 and TAT-77 (unknown version) and classified as critical. This issue affects an unknown code block of the component Authentication Mechanism. The manipulation with an unknown input leads to a weak authentication vulnerability. Using CWE to declare the problem leads to CWE-287. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 02/27/2020. The identification of this vulnerability is CVE-2020-3923 since 12/20/2019. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entry connected to this vulnerability is available at 150702.

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VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Weak authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

12/20/2019 🔍
02/27/2020 +69 days 🔍
02/28/2020 +1 days 🔍
02/28/2020 +0 days 🔍

Sourcesinfoedit

Status: Not defined

CVE: CVE-2020-3923 (🔍)
See also: 🔍

Entryinfoedit

Created: 02/28/2020 03:26 PM
Updated: 02/28/2020 03:31 PM
Changes: (11) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_assigned source_cve_nvd_summary vulnerability_cwe
Complete: 🔍

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