CVE-2023-45151

2023-10-1619:15:10

CWE-312

[email protected]

web.nvd.nist.gov

nextcloud

server

oauth2

plaintext

vulnerability

upgrade

nvd

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.0%

JSON

Nextcloud server is an open source home cloud platform. Affected versions of Nextcloud stored OAuth2 tokens in plaintext which allows an attacker who has gained access to the server to potentially elevate their privilege. This issue has been addressed and users are recommended to upgrade their Nextcloud Server to version 25.0.8, 26.0.3 or 27.0.1. There are no known workarounds for this vulnerability.

Affected configurations

Vulners

NVD

Node

nextcloudnextcloudRange25.0.0–25.0.8

nextcloudnextcloudRange26.0.0–26.0.3

nextcloudnextcloudRange27.0.0–27.0.1

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

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

CNA Affected

[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": ">= 25.0.0, < 25.0.8",
        "status": "affected"
      },
      {
        "version": ">= 26.0.0, < 26.0.3",
        "status": "affected"
      },
      {
        "version": ">= 27.0.0, < 27.0.1",
        "status": "affected"
      }
    ]
  }
]