SonicWALL NetExtender up to 9.0.815 on Windows input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in SonicWALL NetExtender up to 9.0.815 on Windows and classified as critical. The impacted element is an unknown function. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2020-5131. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in SonicWALL NetExtender up to 9.0.815 on Windows (Firewall Software) and classified as critical. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

SonicWall NetExtender Windows client vulnerable to arbitrary file write vulnerability, this allows attacker to overwrite a DLL and execute code with the same privilege in the host operating system. This vulnerability impact SonicWall NetExtender Windows client version 9.0.815 and earlier.

The weakness was disclosed 07/17/2020 (Website). The advisory is shared for download at psirt.global.sonicwall.com. This vulnerability is handled as CVE-2020-5131 since 12/31/2019. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

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

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

12/31/2019 🔍
07/17/2020 +199 days 🔍
07/19/2020 +2 days 🔍
11/04/2020 +108 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: psirt.global.sonicwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-5131 (🔍)
GCVE (CVE): GCVE-0-2020-5131
GCVE (VulDB): GCVE-100-158792

Entryinfo

Created: 07/19/2020 11:54
Updated: 11/04/2020 19:18
Changes: 07/19/2020 11:54 (37), 07/19/2020 11:59 (18), 11/04/2020 19:18 (1)
Complete: 🔍
Cache ID: 216::103

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