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CVE-2021-31684

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Github json-smart-v1是Github开源的一个应用软件。提供数据存储中的所有非索引数据都作为序列化的 JSON 消息存储在列中功能。 JSON Smart 1.3 和 2.4 版本存在安全漏洞，该漏洞源于JSONParserByteArray的indexOf函数，攻击者可利用该漏洞通过精心制作的web请求导致拒绝服务。以下产品和版本受到影响：Nextcloud Server 19.0.11、20.0.10或21.0.2之前的版本。

AI Predicted 5.3 Difficulty: Easy EPSS 2.30% · P83

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-31684

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Github json-smart-v1 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Github json-smart-v1是Github开源的一个应用软件。提供数据存储中的所有非索引数据都作为序列化的 JSON 消息存储在列中功能。 JSON Smart 1.3 和 2.4 版本存在安全漏洞，该漏洞源于JSONParserByteArray的indexOf函数，攻击者可利用该漏洞通过精心制作的web请求导致拒绝服务。以下产品和版本受到影响：Nextcloud Server 19.0.11、20.0.10或21.0.2之前的版本。
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
- n/a n/a -

II. Public POCs for CVE-2021-31684

# POC Description Source Link Shenlong Link
1 None https://github.com/andikahilmy/CVE-2021-31684-json-smart-v2-vulnerable POC Details
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III. Intelligence Information for CVE-2021-31684

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Patches & Fixes for CVE-2021-31684 (2)

Vendor Advisories for CVE-2021-31684 (3)

Mailing List Discussions for CVE-2021-31684 (1)

Other References for CVE-2021-31684 (2)

Same Patch Batch · n/a · 2021-06-01 · 38 CVEs total

CVE-2020-27748 xdg-utils 安全漏洞
CVE-2020-26669 Fastspot BigTree 跨站脚本漏洞
CVE-2020-26668 Fastspot BigTree SQL注入漏洞
CVE-2021-31641 CHIYU科技BF-630W 跨站脚本漏洞
CVE-2021-3412 3Scale 安全漏洞
CVE-2021-3516 libxml2 资源管理错误漏洞
CVE-2021-20306 Red Hat BPMN Editor 安全漏洞
CVE-2021-3515 PostgreSQL 操作系统命令注入漏洞
CVE-2021-3495 Kiali-operator 安全漏洞
CVE-2021-3543 Red Hat, Inc. Nitro Enclaves内核驱动 资源管理错误漏洞
CVE-2020-26670 Fastspot BigTree 操作系统命令注入漏洞
CVE-2021-23017 F5 NGINX Controller 安全漏洞
CVE-2021-23021 F5 NGINX Controller 安全漏洞
CVE-2021-23020 NGINX控制器 安全特征问题漏洞
CVE-2021-23019 F5 NGINX Controller 安全漏洞
CVE-2021-23018 Nginx 控制器 安全漏洞
CVE-2021-27828 In4Velocity In4Suite ERP SQL注入漏洞
CVE-2021-25932 Opennms Group OpenNMS 跨站脚本漏洞
CVE-2021-32027 PostgreSQL 输入验证错误漏洞
CVE-2021-3424 Red Hat Single Sign-On 7安全漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-31684

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