FKIE_CVE-2021-42022

Vulnerability from fkie_nvd - Published: 2021-12-14 12:15 - Updated: 2024-11-21 06:27
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A vulnerability has been identified in SIMATIC eaSie PCS 7 Skill Package (All versions < V21.00 SP3). When downloading files, the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to resolve to a location outside of the restricted directory on the server and read unexpected critical files. The affected file download function is disabled by default.
References
productcert@siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-199605.pdfVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-199605.pdfVendor Advisory
Impacted products
Vendor Product Version
siemens simatic_easie_pcs_7_skill *
siemens simatic_easie_pcs_7_skill 21.00
siemens simatic_easie_pcs_7_skill 21.00
siemens simatic_easie_pcs_7_skill 21.00
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "807320F9-B93D-45EC-AAAC-D566FAA4A40F",
              "versionEndIncluding": "20.07",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:-:*:*:*:*:*:*",
              "matchCriteriaId": "CC06A7C9-7A87-4CBF-B6DB-80475A0F0756",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "425EFA36-DBC0-493E-886E-2A0042A5698C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp2:*:*:*:*:*:*",
              "matchCriteriaId": "9D207813-7AF3-4F97-85DC-ECB650075A44",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in SIMATIC eaSie PCS 7 Skill Package (All versions \u003c V21.00 SP3). When downloading files, the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to resolve to a location outside of the restricted directory on the server and read unexpected critical files. The affected file download function is disabled by default."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en SIMATIC eaSie PCS 7 Skill Package (Todas las versiones anteriores a V21.00 SP3). Al descargar archivos, los sistemas afectados no neutralizan correctamente los elementos especiales dentro del nombre de la ruta. Un atacante podr\u00eda entonces hacer que el nombre de ruta sea resuelto en una ubicaci\u00f3n fuera del directorio restringido en el servidor y leer archivos cr\u00edticos inesperados. La funci\u00f3n de descarga de archivos afectada est\u00e1 deshabilitada por defecto"
    }
  ],
  "id": "CVE-2021-42022",
  "lastModified": "2024-11-21T06:27:06.027",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-12-14T12:15:09.863",
  "references": [
    {
      "source": "productcert@siemens.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-199605.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-199605.pdf"
    }
  ],
  "sourceIdentifier": "productcert@siemens.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "productcert@siemens.com",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.