CVE-2020-3924
CVSS V2 High 10
CVSS V3 Critical 9.8
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.
Overview
- CVE ID
- CVE-2020-3924
- Assigner
- twcert@cert.org.tw
- Vulnerability Status
- Analyzed
- Published Version
- 2020-02-27T04:15:10
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:tonnet:tat-77104g1_firmware:*:*:*:*:*:*:*:* | 1 | OR | tat-77104g1_20190107 | |
| cpe:2.3:h:tonnet:tat-77104g1:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-70432n_firmware:*:*:*:*:*:*:*:* | 1 | OR | tat-77208g1_20181225 | |
| cpe:2.3:h:tonnet:tat-70432n:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-71416g1_firmware:*:*:*:*:*:*:*:* | 1 | OR | tat-71416g1_20181225 | |
| cpe:2.3:h:tonnet:tat-71416g1:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-71832g1_firmware:*:*:*:*:*:*:*:* | 1 | OR | tat-71832g1_20190510 | |
| cpe:2.3:h:tonnet:tat-71832g1:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-76104g3_firmware:*:*:*:*:*:*:*:* | 1 | OR | 20181220_76104g3 | |
| cpe:2.3:h:tonnet:tat-76104g3:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-76108g3_firmware:*:*:*:*:*:*:*:* | 1 | OR | 20181221_76208g3 | |
| cpe:2.3:h:tonnet:tat-76108g3:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-76116g3_firmware:*:*:*:*:*:*:*:* | 1 | OR | 20181221_76216g3 | |
| cpe:2.3:h:tonnet:tat-76116g3:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:tonnet:tat-76132g3_firmware:*:*:*:*:*:*:*:* | 1 | OR | tat-70832g3_20181221-1 | |
| cpe:2.3:h:tonnet:tat-76132g3:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tvn.twcert.org.tw/taiwanvn/TVN-201910004 | Third Party Advisory |
| https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3924 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3924 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:04:47 | Added to TrackCVE | |||
| 2022-12-04 11:49:59 | cve@cert.org.tw | twcert@cert.org.tw | CVE Assigner | updated |
| 2022-12-04 11:49:59 | 2020-02-27T04:15Z | 2020-02-27T04:15:10 | CVE Published Date | updated |
| 2022-12-04 11:50:00 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
| 2022-12-04 11:50:00 | Analyzed | Vulnerability Status | updated |