CVE-2023-39953

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*

History

16 Aug 2023, 19:10

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 4.8
CPE cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*
First Time Nextcloud user Oidc
Nextcloud
References (MISC) https://github.com/nextcloud/user_oidc/pull/642 - (MISC) https://github.com/nextcloud/user_oidc/pull/642 - Patch
References (MISC) https://hackerone.com/reports/2021684 - (MISC) https://hackerone.com/reports/2021684 - Permissions Required
References (MISC) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j - (MISC) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j - Patch, Vendor Advisory

10 Aug 2023, 14:46

Type Values Removed Values Added
New CVE

Information

Published : 2023-08-10 14:15

Updated : 2024-02-28 20:33


NVD link : CVE-2023-39953

Mitre link : CVE-2023-39953

CVE.ORG link : CVE-2023-39953


JSON object : View

Products Affected

nextcloud

  • user_oidc
CWE
CWE-303

Incorrect Implementation of Authentication Algorithm