CVE-2021-20034
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.
Overview
- CVE ID
- CVE-2021-20034
- Assigner
- PSIRT@sonicwall.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-27T18:15:08
- Last Modified Date
- 2022-07-08T18:21:10
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0.10-28sv | |
| cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.0.0 | 10.2.0.7-34sv |
| cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.1.0 | 10.2.1.0-17sv |
| cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0.10-28sv | |
| cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.0.0 | 10.2.0.7-34sv |
| cpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.1.0 | 10.2.1.0-17sv |
| cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0.10-28sv | |
| cpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.0.0 | 10.2.0.7-34sv |
| cpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.1.0 | 10.2.1.0-17sv |
| cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0.10-28sv | |
| cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.0.0 | 10.2.0.7-34sv |
| cpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:* | 1 | OR | 10.2.1.0 | 10.2.1.0-17sv |
| cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:sonicwall:sma_500v:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0.10-28sv | |
| cpe:2.3:a:sonicwall:sma_500v:*:*:*:*:*:*:*:* | 1 | OR | 10.2.0.0 | 10.2.0.7-34sv |
| cpe:2.3:a:sonicwall:sma_500v:*:*:*:*:*:*:*:* | 1 | OR | 10.2.1.0 | 10.2.1.0-17sv |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0021 | Vendor Advisory |
| http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.html | Exploit Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-20034 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20034 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:48:10 | Added to TrackCVE | |||
| 2022-12-05 11:23:46 | 2021-09-27T18:15Z | 2021-09-27T18:15:08 | CVE Published Date | updated |
| 2022-12-05 11:23:46 | 2022-07-08T18:21:10 | CVE Modified Date | updated | |
| 2022-12-05 11:23:46 | Analyzed | Vulnerability Status | updated |