CVE-2021-42540 (GCVE-0-2021-42540)

Vulnerability from cvelistv5 – Published: 2021-10-22 13:23 – Updated: 2024-09-16 21:04
VLAI
Title
Emerson WirelessHART Gateway
Summary
The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.
Severity
8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-123 - Write-what-where Condition
Assigner
References
Impacted products
Vendor Product Version CPE status
Emerson WirelessHART Gateway Affected: 1410 , ≤ 4.7.94 (custom)
Affected: 1410D , ≤ 4.7.94 (custom)
Affected: 1420 , ≤ 4.7.94 (custom)
guessed Create a notification for this product.
Date Public
2021-10-05 00:00
Credits
Amir Preminger of Claroty reported these vulnerabilities to CISA
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:30:38.336Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WirelessHART Gateway",
          "vendor": "Emerson",
          "versions": [
            {
              "lessThanOrEqual": "4.7.94",
              "status": "affected",
              "version": "1410",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.7.94",
              "status": "affected",
              "version": "1410D",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.7.94",
              "status": "affected",
              "version": "1420",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Amir Preminger of Claroty reported these vulnerabilities to CISA"
        }
      ],
      "datePublic": "2021-10-05T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-123",
              "description": "CWE-123 Write-what-where Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-22T13:23:22.000Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Emerson recommends upgrading to v4.7.105 to address these vulnerabilities.\n\nUsers can visit the Emerson Gate Firmware site for and download instructions.\n\nIf affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide."
        }
      ],
      "source": {
        "advisory": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02",
        "discovery": "UNKNOWN"
      },
      "title": "Emerson WirelessHART Gateway",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "ics-cert@hq.dhs.gov",
          "DATE_PUBLIC": "2021-10-05T21:42:00.000Z",
          "ID": "CVE-2021-42540",
          "STATE": "PUBLIC",
          "TITLE": "Emerson WirelessHART Gateway"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "WirelessHART Gateway",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "1410",
                            "version_value": "4.7.94"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_name": "1410D",
                            "version_value": "4.7.94"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_name": "1420",
                            "version_value": "4.7.94"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Emerson"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Amir Preminger of Claroty reported these vulnerabilities to CISA"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-123 Write-what-where Condition"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02",
              "refsource": "CONFIRM",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Emerson recommends upgrading to v4.7.105 to address these vulnerabilities.\n\nUsers can visit the Emerson Gate Firmware site for and download instructions.\n\nIf affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide."
          }
        ],
        "source": {
          "advisory": "https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2021-42540",
    "datePublished": "2021-10-22T13:23:22.604Z",
    "dateReserved": "2021-10-15T00:00:00.000Z",
    "dateUpdated": "2024-09-16T21:04:12.096Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-42540",
      "date": "2026-09-15",
      "epss": "0.01028",
      "percentile": "0.61787"
    },
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:emerson:wireless_1410_gateway_firmware:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.7.94\", \"matchCriteriaId\": \"81295FA4-C0AE-4D54-986C-FB5D80AE394F\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:emerson:wireless_1410_gateway:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CC94CCCF-5560-427C-A297-F2A623E33E37\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:emerson:wireless_1410d_gateway_firmware:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.7.94\", \"matchCriteriaId\": \"A431B208-B3F6-4FDC-9476-7EA210CF451B\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:emerson:wireless_1410d_gateway:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"53FDB1A1-A7BD-49F6-8C4C-45A1932E8AC3\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:emerson:wireless_1420_gateway_firmware:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.7.94\", \"matchCriteriaId\": \"48241B16-A938-49D2-9B05-8F6EE45A0F45\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:emerson:wireless_1420_gateway:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3CEB591C-621A-49A9-BEF0-5854B06490EB\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.\"}, {\"lang\": \"es\", \"value\": \"El producto afectado es vulnerable a una carpeta de extracci\\u00f3n no saneada para la configuraci\\u00f3n del sistema. Un usuario con pocos privilegios puede aprovechar esta l\\u00f3gica para sobrescribir la configuraci\\u00f3n y otras funcionalidades clave\"}]",
      "id": "CVE-2021-42540",
      "lastModified": "2024-11-21T06:27:46.087",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"ics-cert@hq.dhs.gov\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H\", \"baseScore\": 8.0, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.1, \"impactScore\": 5.9}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:S/C:P/I:P/A:P\", \"baseScore\": 6.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-10-22T14:15:08.933",
      "references": "[{\"url\": \"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02\", \"source\": \"ics-cert@hq.dhs.gov\", \"tags\": [\"Patch\", \"Third Party Advisory\", \"US Government Resource\"]}, {\"url\": \"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\", \"US Government Resource\"]}]",
      "sourceIdentifier": "ics-cert@hq.dhs.gov",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ics-cert@hq.dhs.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-123\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-42540\",\"sourceIdentifier\":\"ics-cert@hq.dhs.gov\",\"published\":\"2021-10-22T14:15:08.933\",\"lastModified\":\"2026-06-17T04:09:47.650\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.\"},{\"lang\":\"es\",\"value\":\"El producto afectado es vulnerable a una carpeta de extracci\u00f3n no saneada para la configuraci\u00f3n del sistema. Un usuario con pocos privilegios puede aprovechar esta l\u00f3gica para sobrescribir la configuraci\u00f3n y otras funcionalidades clave\"}],\"affected\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"affectedData\":[{\"vendor\":\"Emerson\",\"product\":\"WirelessHART Gateway\",\"versions\":[{\"version\":\"1410\",\"lessThanOrEqual\":\"4.7.94\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"1410D\",\"lessThanOrEqual\":\"4.7.94\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"1420\",\"lessThanOrEqual\":\"4.7.94\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":8.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.1,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:P/A:P\",\"baseScore\":6.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-123\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:emerson:wireless_1410_gateway_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.7.94\",\"matchCriteriaId\":\"81295FA4-C0AE-4D54-986C-FB5D80AE394F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:emerson:wireless_1410_gateway:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC94CCCF-5560-427C-A297-F2A623E33E37\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:emerson:wireless_1410d_gateway_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.7.94\",\"matchCriteriaId\":\"A431B208-B3F6-4FDC-9476-7EA210CF451B\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:emerson:wireless_1410d_gateway:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"53FDB1A1-A7BD-49F6-8C4C-45A1932E8AC3\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:emerson:wireless_1420_gateway_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.7.94\",\"matchCriteriaId\":\"48241B16-A938-49D2-9B05-8F6EE45A0F45\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:emerson:wireless_1420_gateway:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3CEB591C-621A-49A9-BEF0-5854B06490EB\"}]}]}],\"references\":[{\"url\":\"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02\",\"source\":\"ics-cert@hq.dhs.gov\",\"tags\":[\"Patch\",\"Third Party Advisory\",\"US Government Resource\"]},{\"url\":\"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\",\"US Government Resource\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T13:26:19+00:00",
      "cve": "CVE-2021-42540",
      "id": "CVE-2021-42540",
      "initial_release_date": "2021-10-05T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Emerson WirelessHART Gateway",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-42540.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.