SonicWALL SMA 100/SMA 200/SMA 210/SMA 400/SMA 410/SMA 500v Management Interface /cgi-bin/viewcert os command injection

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in SonicWALL SMA 100, SMA 200, SMA 210, SMA 400, SMA 410 and SMA 500v and classified as critical. The impacted element is an unknown function of the file /cgi-bin/viewcert of the component Management Interface. Executing a manipulation can lead to os command injection. The identification of this vulnerability is CVE-2021-20039. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in SonicWALL SMA 100, SMA 200, SMA 210, SMA 400, SMA 410 and SMA 500v (Firewall Software) and classified as critical. This vulnerability affects an unknown code of the file /cgi-bin/viewcert of the component Management Interface. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 12/08/2021 as SNWLID-2021-0026. The advisory is shared for download at psirt.global.sonicwall.com. This vulnerability was named CVE-2021-20039 since 12/17/2020. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
12/08/2021 +356 days 🔍
12/08/2021 +0 days 🔍
09/05/2025 +1367 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: SNWLID-2021-0026
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20039 (🔍)
GCVE (CVE): GCVE-0-2021-20039
GCVE (VulDB): GCVE-100-187744

Entryinfo

Created: 12/08/2021 13:05
Updated: 09/05/2025 20:27
Changes: 12/08/2021 13:05 (39), 12/11/2021 07:18 (2), 12/11/2021 07:25 (1), 09/05/2025 20:27 (33)
Complete: 🔍
Cache ID: 216::103

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