CVE-2023-28848

2023-04-0413:15:08

CWE-352

[email protected]

web.nvd.nist.gov

nextcloud

user_oidc

oidc

vulnerability

bypass

state protection

patch

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.9%

JSON

user_oidc is the OIDC connect user backend for Nextcloud, an open source collaboration platform. A vulnerability in versions 1.0.0 until 1.3.0 effectively allowed an attacker to bypass the state protection as they could just copy the expected state token from the first request to their second request. Users should upgrade user_oidc to 1.3.0 to receive a patch for the issue. No known workarounds are available.

Affected configurations

Vulners

NVD

Node

nextcloudnextcloudRange1.0.0–1.3.0

VendorProductVersionCPE
nextcloudnextcloud*cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nextcloud	nextcloud	*	cpe:2.3:a:nextcloud:nextcloud::::::::

CNA Affected

[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": ">= 1.0.0, < 1.3.0",
        "status": "affected"
      }
    ]
  }
]