CVE-2022-31118 Missing brute force protection on cloud federation sharing in Nextcloud Server

2022-08-0416:50:10

CWE-770

GitHub_M

www.cve.org

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

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

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.4%

JSON

Nextcloud server is an open source personal cloud solution. In affected versions an attacker could brute force to find if federated sharing is being used and potentially try to brute force access tokens for federated shares (a-zA-Z0-9 ^ 15). It is recommended that the Nextcloud Server is upgraded to 22.2.9, 23.0.6 or 24.0.2. Users unable to upgrade may disable federated sharing via the Admin Sharing settings in index.php/settings/admin/sharing.

CNA Affected

[
  {
    "product": "security-advisories",
    "vendor": "nextcloud",
    "versions": [
      {
        "status": "affected",
        "version": "< 22.2.9"
      },
      {
        "status": "affected",
        "version": ">= 23.0.0, < 23.0.6"
      },
      {
        "status": "affected",
        "version": ">= 24.0.0, < 24.0.2"
      }
    ]
  }
]