FKIE_CVE-2021-1593

Vulnerability from fkie_nvd - Published: 2021-08-04 18:15 - Updated: 2026-06-17 03:32
Severity
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Summary
A vulnerability in Cisco Packet Tracer for Windows could allow an authenticated, local attacker to perform a DLL injection attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the Windows system. This vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by inserting a configuration file in a specific path on the system, which can cause a malicious DLL file to be loaded when the application starts. A successful exploit could allow an attacker with normal user privileges to execute arbitrary code on the affected system with the privileges of another user’s account.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-packettracer-dll-inj-Qv8Mk5JxVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-packettracer-dll-inj-Qv8Mk5JxVendor Advisory
Impacted products
Vendor Product Version
cisco packet_tracer 7.2.0
cisco packet_tracer 7.2.1
cisco packet_tracer 7.2.2
cisco packet_tracer 7.3.0
cisco packet_tracer 7.3.1
cisco packet_tracer 8.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Cisco Packet Tracer",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:7.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "4C0B5794-4105-4803-A2CF-E56AAD49F194",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:7.2.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "D1C996C9-E9E0-4C11-8469-BB35F7851218",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:7.2.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "431D10F3-9327-4A56-8A34-2C18AFF94B96",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:7.3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "582FDF29-ECB1-41B5-97F3-2FE06972A8B1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:7.3.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "79BE4C76-E984-4654-8B40-D228039C8AFD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:packet_tracer:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8AED375D-9B82-450E-AC3D-E7FEA285E08B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Cisco Packet Tracer for Windows could allow an authenticated, local attacker to perform a DLL injection attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the Windows system. This vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by inserting a configuration file in a specific path on the system, which can cause a malicious DLL file to be loaded when the application starts. A successful exploit could allow an attacker with normal user privileges to execute arbitrary code on the affected system with the privileges of another user\u0026rsquo;s account."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en Cisco Packet Tracer para Windows, podr\u00eda permitir a un atacante local autenticado llevar a cabo un ataque de inyecci\u00f3n DLL en un dispositivo afectado. Para explotar esta vulnerabilidad, el atacante debe tener credenciales v\u00e1lidas en el sistema Windows. Esta vulnerabilidad es debido al manejo incorrecto de las rutas de directorio en tiempo de ejecuci\u00f3n. Un atacante podr\u00eda explotar esta vulnerabilidad al insertar un archivo de configuraci\u00f3n en una ruta espec\u00edfica del sistema, lo que puede causar que se cargue un archivo DLL malicioso cuando se inicie la aplicaci\u00f3n. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante con privilegios de usuario normales ejecutar c\u00f3digo arbitrario en el sistema afectado con los privilegios de la cuenta de otro usuario"
    }
  ],
  "id": "CVE-2021-1593",
  "lastModified": "2026-06-17T03:32:07.710",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-1593",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-11-07T21:43:29.206748Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-08-04T18:15:08.633",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-packettracer-dll-inj-Qv8Mk5Jx"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-packettracer-dll-inj-Qv8Mk5Jx"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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