Executive Summary

Informations
Name CVE-2023-39962 First vendor Publication 2023-08-10
Vendor Cve Last vendor Modification 2023-08-16

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 7.7
Base Score 7.7 Environmental Score 7.7
impact SubScore 4 Temporal Score 7.7
Exploitabality Sub Score 3.1
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 19.0.0 and prior to versions 19.0.13.10, 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a malicious user could delete any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 19.0.13.10, 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. As a workaround, disable app files_external. This also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39962

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-284 Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 35

Sources (Detail)

Source Url
MISC https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xwx...
https://github.com/nextcloud/server/pull/39323
https://hackerone.com/reports/2047168

Alert History

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Date Informations
2024-08-02 13:50:44
  • Multiple Updates
2024-08-02 01:33:44
  • Multiple Updates
2024-02-02 02:47:48
  • Multiple Updates
2024-02-01 12:30:50
  • Multiple Updates
2023-09-05 13:42:05
  • Multiple Updates
2023-09-05 01:29:48
  • Multiple Updates
2023-09-02 13:40:11
  • Multiple Updates
2023-09-02 01:30:13
  • Multiple Updates
2023-08-16 17:27:21
  • Multiple Updates
2023-08-11 09:27:20
  • Multiple Updates
2023-08-11 05:27:23
  • First insertion