Nextcloud Server 19.0.1 WebAuthn improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Nextcloud Server 19.0.1. It has been rated as critical. Impacted is an unknown function of the component WebAuthn. The manipulation leads to improper authentication. This vulnerability is listed as CVE-2020-8236. There is no available exploit.

Detailsinfo

A vulnerability was found in Nextcloud Server 19.0.1 (Cloud Software). It has been rated as critical. This issue affects an unknown function of the component WebAuthn. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The weakness was presented 11/03/2020. The advisory is shared at hackerone.com. The identification of this vulnerability is CVE-2020-8236. The exploitation is known to be easy. Neither technical details nor an exploit are 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

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

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

01/28/2020 🔍
11/03/2020 +280 days 🔍
11/03/2020 +0 days 🔍
12/01/2020 +28 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-8236 (🔍)
GCVE (CVE): GCVE-0-2020-8236
GCVE (VulDB): GCVE-100-164213

Entryinfo

Created: 11/03/2020 09:23
Updated: 12/01/2020 14:35
Changes: 11/03/2020 09:23 (37), 12/01/2020 14:32 (2), 12/01/2020 14:35 (18)
Complete: 🔍
Cache ID: 216::103

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