CVE-2023-39958 Missing brute force protection on password reset token OAuth2 API controller

2023-08-1017:04:51

CWE-307

GitHub_M

www.cve.org

nextcloud server

oauth2

brute force protection

password reset token

security patch

vulnerability

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

35.0%

JSON

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

CNA Affected

[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": ">= 22.0.0, < 22.2.10.13",
        "status": "affected"
      },
      {
        "version": ">= 23.0.0, < 23.0.12.8",
        "status": "affected"
      },
      {
        "version": ">= 24.0.0, < 24.0.12.5",
        "status": "affected"
      },
      {
        "version": ">= 25.0.0, < 25.0.9",
        "status": "affected"
      },
      {
        "version": ">= 26.0.0, < 26.0.4",
        "status": "affected"
      },
      {
        "version": ">= 27.0.0, < 27.0.1",
        "status": "affected"
      }
    ]
  }
]