CVE-2021-20330

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
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 4.0.25; MongoDB Server v4.2 versions prior to 4.2.14; MongoDB Server v4.4 versions prior to 4.4.6.
Overview
  • CVE ID
  • CVE-2021-20330
  • Assigner
  • cna@mongodb.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-12-15T13:15:07
  • Last Modified Date
  • 2021-12-20T16:12:00
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* 1 OR 4.0.0 4.0.25
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* 1 OR 4.2.0 4.2.14
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* 1 OR 4.4.0 4.4.6
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://jira.mongodb.org/browse/SERVER-36263 Issue Tracking Patch Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20330
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20330
History
Created Old Value New Value Data Type Notes
2022-05-10 06:40:39 Added to TrackCVE
2022-12-06 03:53:17 2021-12-15T13:15Z 2021-12-15T13:15:07 CVE Published Date updated
2022-12-06 03:53:17 2021-12-20T16:12:00 CVE Modified Date updated
2022-12-06 03:53:17 Analyzed Vulnerability Status updated