{
  "id": "CVE-2024-40719",
  "sourceIdentifier": "twcert@cert.org.tw",
  "published": "2024-08-02T10:16:00.470",
  "lastModified": "2024-08-09T14:36:32.300",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is insufficient. When a remote attacker tricks a victim into visiting a malicious website, TCBServiSign will treat that website as a legitimate server and interact with it."
    },
    {
      "lang": "es",
      "value": "La seguridad de cifrado de las claves de autorizaci\u00f3n en CHANGING Information Technology TCBServiSign Windows Version es insuficiente. Cuando un atacante remoto enga\u00f1a a una v\u00edctima para que visite un sitio web malicioso, TCBServiSign tratar\u00e1 ese sitio web como un servidor leg\u00edtimo e interactuar\u00e1 con \u00e9l."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "twcert@cert.org.tw",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "twcert@cert.org.tw",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:*",
              "versionEndExcluding": "1.0.24.0318",
              "matchCriteriaId": "4F2A798C-915D-4A62-A562-5B1AFE7899A9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.twcert.org.tw/en/cp-139-7970-e8ac5-2.html",
      "source": "twcert@cert.org.tw",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-7964-5b266-1.html",
      "source": "twcert@cert.org.tw",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}