CVE-2022-31120 Federated share accepting/declining is not logged in audit log in Nextcloud Server

2022-08-0417:00:24

CWE-778

GitHub_M

www.cve.org

nextcloud server

audit log

federated share

brute force attacks

upgraded.

2.1 Low

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

4.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.2%

JSON

Nextcloud server is an open source personal cloud solution. The audit log is used to get a full trail of the actions which has been incompletely populated. In affected versions federated share events were not properly logged which would allow brute force attacks to go unnoticed. This behavior exacerbates the impact of CVE-2022-31118. It is recommended that the Nextcloud Server is upgraded to 22.2.7, 23.0.4 or 24.0.0. There are no workarounds available.

CNA Affected

[
  {
    "product": "security-advisories",
    "vendor": "nextcloud",
    "versions": [
      {
        "status": "affected",
        "version": ">= 23.0.0, < 23.0.4"
      },
      {
        "status": "affected",
        "version": "< 22.2.7"
      }
    ]
  }
]