CVE-2021-20326— Specially crafted query may result in a denial of service of mongod
Quick assessment
Affected
MongoDB Inc. MongoDB Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mongodb Server是美国Mongodb公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server v4.4版本至4.4.4版本存在安全漏洞，该漏洞源于授权执行特定类型查找查询的用户可能会触发拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-20326
Vulnerability Information
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Vulnerability Title
Specially crafted query may result in a denial of service of mongod
Source: CVE Program / CVE List V5
Vulnerability Description
A user authorized to performing a specific type of find query may trigger a denial of service. This issue affects MongoDB Server v4.4 versions prior to 4.4.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mongodb Server是美国Mongodb公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server v4.4版本至4.4.4版本存在安全漏洞，该漏洞源于授权执行特定类型查找查询的用户可能会触发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB Inc. | MongoDB Server | 4.4 ~ 4.4.4 | - |
|
II. Public POCs for CVE-2021-20326
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-20326 (1)
-
https://jira.mongodb.org/browse/SERVER-53929 x_refsource_MISC
IV. Related Vulnerabilities
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V. Comments for CVE-2021-20326
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