Nextcloud Server 18.0.4 Encryption random values

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.4$0-$5k0.00

A vulnerability was found in Nextcloud Server 18.0.4 (Cloud Software). It has been classified as problematic. This affects an unknown code block of the component Encryption Handler. The manipulation with an unknown input leads to a weak encryption vulnerability. CWE is classifying the issue as CWE-330. This is going to have an impact on confidentiality. The summary by CVE is:

A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.

The weakness was released 11/03/2020. It is possible to read the advisory at hackerone.com. This vulnerability is uniquely identified as CVE-2020-8173 since 01/28/2020. The exploitability is told to be difficult. Access to the local network is required for this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available.

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

Productinfoedit

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.4

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 2.2
NVD Vector: 🔒

CVSSv2infoedit

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

NVD Base Score: 🔒

Exploitinginfoedit

Class: Weak encryption
CWE: CWE-330
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

01/28/2020 CVE assigned
11/03/2020 +280 days Advisory disclosed
11/03/2020 +0 days VulDB entry created
12/01/2020 +28 days VulDB last update

Sourcesinfoedit

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

CVE: CVE-2020-8173 (🔒)

Entryinfoedit

Created: 11/03/2020 09:21 AM
Updated: 12/01/2020 02:19 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
Complete: 🔍

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