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Cwe 20

🧬 CWE Related 2,857
slug: cwe-20

Explanation

CWE-20は「ユーザーから受け取ったデータが、想定された形式・範囲・型かをきちんとチェックせずに使ってしまう欠陥」のことです。 非常に広い概念で、SQLi・XSS・コマンドインジェクションなど多くの攻撃の前段階となります。 「入力は信用するな (Trust Boundaries の概念)」がセキュリティ設計の基本原則です。
📌 Example
多くのCISA KEV登録CVEがこのCWEに分類されており、2024年だけで100件以上の悪用事例があります。
🔗 Related links

🔖 Related tags

Cwe 798692 Cwe 894154 Cwe 8624040 Cwe 2844030 Cwe 4163898 Cwe 1193185 Cwe 2003145 Cwe 1253116 Cwe 222773 Cwe 7872520 Cwe 782028 Cwe 941871 Cwe 8631869 Cwe 1221801 Cwe 741796

🛡 Vulnerabilities tagged with this 2,859

Image ID Title
CVE-2021-30860 KEV [KEV] Vulnerability in Apple Multiple Products (CVE-2021-30860)
CVE-2021-30663 KEV [KEV] Vulnerability in Apple Multiple Products (CVE-2021-30663)
CVE-2020-3452 KEV [KEV] Vulnerability in Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) (CVE-2020-3452)
CVE-2018-0171 KEV [KEV] Vulnerability in Cisco IOS and IOS XE (CVE-2018-0171)
CVE-2020-3161 KEV [KEV] Vulnerability in Cisco IP Phones (CVE-2020-3161)
CVE-2018-0296 KEV [KEV] Vulnerability in Cisco Adaptive Security Appliance (ASA) (CVE-2018-0296)
CVE-2020-8195 KEV [KEV] Vulnerability in Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance (CVE-2020-8195)
CVE-2017-9822 KEV [KEV] Vulnerability in DotNetNuke (DNN) (CVE-2017-9822)
CVE-2018-7600 KEV [KEV] Vulnerability in Drupal Core (CVE-2018-7600)
CVE-2021-22205 KEV [KEV] Vulnerability in GitLab Community and Enterprise Editions (CVE-2021-22205)
CVE-2021-38000 KEV [KEV] Vulnerability in Google Chromium Intents (CVE-2021-38000)
CVE-2021-21220 KEV [KEV] Vulnerability in Google Chromium V8 (CVE-2021-21220)
CVE-2016-3718 KEV [KEV] Vulnerability in Imagemagick (CVE-2016-3718)
CVE-2021-22502 KEV [KEV] Vulnerability in Micro Focus Operation Bridge Reporter (OBR) (CVE-2021-22502)
CVE-2016-0185 KEV [KEV] Vulnerability in Microsoft Windows (CVE-2016-0185)
CVE-2017-0143 KEV [KEV] Vulnerability in Microsoft Windows (CVE-2017-0143)
CVE-2021-31207 KEV [KEV] Vulnerability in Microsoft Exchange Server (CVE-2021-31207)
CVE-2020-1040 KEV [KEV] Vulnerability in Microsoft Hyper-V RemoteFX (CVE-2020-1040)
CVE-2017-8759 KEV [KEV] Vulnerability in Microsoft .NET Framework (CVE-2017-8759)
CVE-2019-0604 KEV [KEV] Vulnerability in Microsoft SharePoint (CVE-2019-0604)
CVE-2021-35395 KEV [KEV] Vulnerability in Realtek AP-Router SDK (CVE-2021-35395)
CVE-2017-6327 KEV [KEV] Vulnerability in Symantec Messaging Gateway (CVE-2017-6327)
CVE-2018-20062 KEV [KEV] Vulnerability in ThinkPHP noneCms (CVE-2018-20062)
CVE-2021-36742 KEV [KEV] Vulnerability in Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security (CVE-2021-36742)
CVE-2021-21985 KEV [KEV] Vulnerability in VMware vCenter Server (CVE-2021-21985)
CVE-2021-34783 Buffer Overflow in Cisco Adaptive Security Appliance (ASA) Software (CVE-2021-34783)
CVE-2021-34790 Vulnerability in Cisco Adaptive Security Appliance (CVE-2021-34790)
CVE-2021-34791 Vulnerability in Cisco Adaptive Security Appliance (CVE-2021-34791)
CVE-2021-34756 Vulnerability in Cisco Firepower Threat Defense (FTD) Software (CVE-2021-34756)
CVE-2021-34755 Vulnerability in Cisco Firepower Threat Defense (FTD) Software (CVE-2021-34755)

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