CVE-2023-28847 Nextcloud Server missing brute force protection for passwords of password protected share links

2023-04-2516:32:59

CWE-307

GitHub_M

www.cve.org

nextcloud

server

brute force

password protection

share links

nextcloud 24.0.11

nextcloud 25.0.5

nextcloud enterprise 23.0.12.6

3.1 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

54.2%

JSON

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. In Nextcloud Server 24.0.0 prior to 24.0.11 and 25.0.0 prior to 25.0.5; as well as Nextcloud Server Enterprise 23.0.0 prior to 23.0.12.6, 24.0.0 prior to 24.0.11, and 25.0.0 prior to 25.0.5; an attacker is not restricted in verifying passwords of share links so they can just start brute forcing the password. Nextcloud Server 24.0.11 and 25.0.5 and Nextcloud Enterprise Server 23.0.12.6, 24.0.11, and 25.0.5 contain a fix for this issue. No known workarounds are available.

CNA Affected

[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": " >= 23.0.0, < 23.0.12.6",
        "status": "affected"
      },
      {
        "version": ">= 24.0.0, < 24.0.11",
        "status": "affected"
      },
      {
        "version": ">= 25.0.0, < 25.0.5",
        "status": "affected"
      }
    ]
  }
]