8.1 - CVE-2023-39954

Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.

Informations
Name	CVE-2023-39954	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:U/C:H/I:H/A:N
Overall CVSS Score	8.1
Base Score	8.1	Environmental Score	8.1
impact SubScore	5.2	Temporal Score	8.1
Exploitabality Sub Score	2.8

Attack Vector	Network	Attack Complexity	Low
Privileges Required	Low	User Interaction	None
Scope	Unchanged	Confidentiality Impact	High
Integrity Impact	High	Availability Impact	None
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

user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, an attacker that obtained at least read access to a snapshot of the database can impersonate the Nextcloud server towards linked servers. user_oidc 1.3.3 contains a patch. No known workarounds are available.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39954

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-311	Missing Encryption of Sensitive Data (CWE/SANS Top 25)

CPE : Common Platform Enumeration

Type	Description	Count
Application	Nextcloud User Oidc cpe:2.3:a:nextcloud:user_oidc::::::::	1

Sources (Detail)

Source	Url
MISC	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3f9... https://github.com/nextcloud/user_oidc/pull/636 https://hackerone.com/reports/1994328