PT-2021-13889 · Mongodb+1 · Mongodb Server+2

Published 2021-12-15 · Updated 2024-09-16 · CVE-2021-20330

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: MongoDB Server versions prior to 4.0.27 MongoDB Server versions prior to 4.2.16 MongoDB Server versions prior to 4.4.9

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.

Recommendations: For MongoDB Server versions prior to 4.0.27, update to version 4.0.27 or later. For MongoDB Server versions prior to 4.2.16, update to version 4.2.16 or later. For MongoDB Server versions prior to 4.4.9, update to version 4.4.9 or later. As a temporary workaround, consider restricting access to the applyOps command for users with basic CRUD permissions on replicated collections.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2022-3039

BIT-MONGODB-2021-20330

CVE-2021-20330

Affected Products

Alt Linux

Mongodb Server

Mongodb

References · 10

• https://osv.dev/vulnerability/BIT-mongodb-2021-20330 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20330 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-20330 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-20330 · Security Note
• https://jira.mongodb.org/browse/SERVER-36263 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-20330 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-20330 · Vendor Advisory
• https://t.me/cibsecurity/33999 · Telegram Post
• https://t.me/cvenotify/94798 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20330 · Note