{"_links":{"capec":{"href":"/api/v1/vulnerability/cve-2021-20021/capec"},"cvss":{"href":"/api/v1/vulnerability/cve-2021-20021/cvss"},"cwe":{"href":"/api/v1/vulnerability/cve-2021-20021/cwe"},"enrichment":{"href":"/api/v1/vulnerability/cve-2021-20021/enrichment"},"gcve":{"href":"/api/v1/vulnerability/cve-2021-20021/gcve"},"self":{"href":"/api/v1/vulnerability/cve-2021-20021"},"sightings":{"href":"/api/v1/sightings/cve-2021-20021"}},"enrichments":{"cisa-kev":{"kev":true},"epss":{"epss":0.83425,"kev":true,"percentile":0.99667},"nuclei":{"nuclei":true,"nuclei_template":"http/cves/2021/CVE-2021-20021.yaml","nuclei_template_severity":"critical","nuclei_template_yaml":"id: CVE-2021-20021\n\ninfo:\n  name: SonicWall Email Security <= 10.0.9.x - Unauthenticated Admin Account Creation\n  author: pussycat0x\n  severity: critical\n  description: |\n    SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.\n  impact: |\n    Attackers can create admin accounts remotely, leading to full control over the email security system.\n  remediation: |\n    Update to the latest version of SonicWall Email Security or apply security patches provided by SonicWall.\n  reference:\n    - https://www.sonicwall.com/support/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360\n    - https://nvd.nist.gov/vuln/detail/CVE-2021-20021\n  classification:\n    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\n    cvss-score: 9.8\n    cve-id: CVE-2021-20021\n    cwe-id: CWE-269\n    epss-score: 0.83425\n    epss-percentile: 0.99668\n    cpe: cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*\n  metadata:\n    verified: true\n    shodan-query: product:\"SonicWALL Email Security\"\n    vendor: sonicwall\n    product: email_security\n  tags: cve,cve2021,sonicwall,email-security,auth-bypass,kev,passive,vkev,vuln\n\nhttp:\n  - method: GET\n    path:\n      - \"{{BaseURL}}/login.html\"\n\n    matchers:\n      - type: dsl\n        dsl:\n          - 'status_code == 200'\n          - 'compare_versions(version, \" <= 10.0.9\")'\n          - 'contains(body, \"logonTitle\\\">Email Security Login\")'\n          - 'contains(header, \"Apache-Coyote/1.1\")'\n        condition: and\n\n    extractors:\n      - type: regex\n        part: body\n        group: 1\n        name: version\n        regex:\n          - 'class=\"lefthand\">([0-9.]+)'\n# digest: 490a0046304402203294cbd1e7108855f2d9ab7ea0963d03d0324350c8da5bf8a02b4adee2fe403e022068ffa6019aee96179e804bf1deb25a262ccdab9ef31714593dd87e95beb1a365:922c64590222798bb761d5b6d8e72950"}},"vuln_id":"cve-2021-20021"}