FKIE_CVE-2023-28806

Vulnerability from fkie_nvd - Published: 2024-08-06 16:15 - Updated: 2026-06-17 05:48
Severity
5.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.
References
cve@zscaler.comhttps://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=windows&applicable_version=4.2.0.190Vendor Advisory
Impacted products
Vendor Product Version
zscaler client_connector *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Client Connector",
          "vendor": "Zscaler",
          "versions": [
            {
              "lessThan": "4.2.0.190",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@zscaler.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "client_connector",
          "vendor": "zscaler",
          "versions": [
            {
              "lessThan": "4.2.0.190",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "260C3474-C82C-4E8A-9C63-FABD53E163BD",
              "versionEndExcluding": "4.2.0.190",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows \u003c4.2.0.190."
    },
    {
      "lang": "es",
      "value": "Una validaci\u00f3n incorrecta de la firma en Zscaler Client Connector en Windows permite a un usuario autenticado desactivar la manipulaci\u00f3n. Este problema afecta a Client Connector en Windows \u0026lt;4.2.0.190."
    }
  ],
  "id": "CVE-2023-28806",
  "lastModified": "2026-06-17T05:48:48.743",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 5.2,
        "source": "cve@zscaler.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-28806",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-06T17:14:09.944551Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-08-06T16:15:46.453",
  "references": [
    {
      "source": "cve@zscaler.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=windows\u0026applicable_version=4.2.0.190"
    }
  ],
  "sourceIdentifier": "cve@zscaler.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "cve@zscaler.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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