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CVE-2021-28271

Estado: ModificadaAlta (8.8)—

Soyal Technologies SOYAL 701Server 9.0.1 suffers from an elevation of privileges vulnerability which can be used by an authenticated user to change the executable file with a binary choice. The vulnerability is due to improper permissions with the 'F' flag (Full) for 'Everyone'and 'Authenticated Users' group.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Soyal — 701clientsqlSoyal — 701serverSoyal — 701serversql

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28271",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-27T13:15:08.373",
  "references": [
    {
      "url": "https://www.exploit-db.com/exploits/49678",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
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    {
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      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5633.php",
      "tags": [
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        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.exploit-db.com/exploits/49678",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zeroscience.mk/en/vulnerabilities",
      "tags": [
        "Exploit",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5633.php",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Soyal Technologies SOYAL 701Server 9.0.1 suffers from an elevation of privileges vulnerability which can be used by an authenticated user to change the executable file with a binary choice. The vulnerability is due to improper permissions with the 'F' flag (Full) for 'Everyone'and 'Authenticated Users' group."
    },
    {
      "lang": "es",
      "value": "Soyal Technologies SOYAL versión 701Server 9.0.1, sufre de una vulnerabilidad de escalada de privilegios que puede ser usada por un usuario autenticado para cambiar el archivo ejecutable con una opción binaria. La vulnerabilidad es debido a permisos inapropiados con el flag \"F\" (Full) para el grupo \"Everyone\" y \"Authenticated Users\""
    }
  ],
  "lastModified": "2026-06-17T03:46:06.617",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:soyal:701clientsql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D87218FA-E4CB-4013-936D-2E2EABE5A081",
              "versionEndExcluding": "10.2",
              "versionStartIncluding": "10.0"
            },
            {
              "criteria": "cpe:2.3:a:soyal:701server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B852C725-1128-4D4D-B991-BA07AB1B9A8B",
              "versionEndIncluding": "9.0.2"
            },
            {
              "criteria": "cpe:2.3:a:soyal:701serversql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "59788149-3C92-4A5F-81AB-9F320ED4CD33",
              "versionEndExcluding": "10.2",
              "versionStartIncluding": "10.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}