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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-39953 Detail

Description

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, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j Patch  Vendor Advisory 
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j Patch  Vendor Advisory 
https://github.com/nextcloud/user_oidc/pull/642 Patch 
https://github.com/nextcloud/user_oidc/pull/642 Patch 
https://hackerone.com/reports/2021684 Permissions Required 
https://hackerone.com/reports/2021684 Permissions Required 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-303 Incorrect Implementation of Authentication Algorithm GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-39953
NVD Published Date:
08/10/2023
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.