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[email protected]CVE-2021-20330

HistoryDec 15, 2021 - 1:15 p.m.

CVE-2021-20330

2021-12-1513:15:07

CWE-20

[email protected]

web.nvd.nist.gov

cve

2021

mongodb

server

denial of service

security

crud

permissions

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.7%

JSON

An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.

Affected configurations

NVD

Node

mongodbmongodbRange4.0.0–4.0.25

mongodbmongodbRange4.2.0–4.2.14

mongodbmongodbRange4.4.0–4.4.6

CPENameOperatorVersion
mongodb:mongodbmongodblt4.0.25
mongodb:mongodbmongodblt4.2.14
mongodb:mongodbmongodblt4.4.6

CPE	Name	Operator	Version
mongodb:mongodb	mongodb	lt	4.0.25
mongodb:mongodb	mongodb	lt	4.2.14
mongodb:mongodb	mongodb	lt	4.4.6

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "MongoDB Server",
    "vendor": "MongoDB Inc.",
    "versions": [
      {
        "lessThan": "4.0.27",
        "status": "affected",
        "version": "4.0",
        "versionType": "custom"
      },
      {
        "lessThan": "4.2.16",
        "status": "affected",
        "version": "4.2",
        "versionType": "custom"
      },
      {
        "lessThan": "4.4.9",
        "status": "affected",
        "version": "4.4",
        "versionType": "custom"
      }
    ]
  }
]