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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-3924 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  TWCERT/CC
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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://tvn.twcert.org.tw/taiwanvn/TVN-201910004 Third Party Advisory 
https://tvn.twcert.org.tw/taiwanvn/TVN-201910004 Third Party Advisory 
https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf Third Party Advisory 
https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:tonnet:tat-77104g1_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
tat-77104g1_20190107
Running on/with
 cpe:2.3:h:tonnet:tat-77104g1:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:tonnet:tat-70432n_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
tat-77208g1_20181225
Running on/with
 cpe:2.3:h:tonnet:tat-70432n:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:tonnet:tat-71416g1_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
tat-71416g1_20181225
Running on/with
 cpe:2.3:h:tonnet:tat-71416g1:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:tonnet:tat-71832g1_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
tat-71832g1_20190510
Running on/with
 cpe:2.3:h:tonnet:tat-71832g1:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:tonnet:tat-76104g3_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
20181220_76104g3
Running on/with
 cpe:2.3:h:tonnet:tat-76104g3:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:tonnet:tat-76108g3_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
20181221_76208g3
Running on/with
 cpe:2.3:h:tonnet:tat-76108g3:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:o:tonnet:tat-76116g3_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
20181221_76216g3
Running on/with
 cpe:2.3:h:tonnet:tat-76116g3:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:o:tonnet:tat-76132g3_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (including)
tat-70832g3_20181221-1
Running on/with
 cpe:2.3:h:tonnet:tat-76132g3:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-3924
NVD Published Date:
02/26/2020
NVD Last Modified:
11/21/2024
Source:
TWCERT/CC