CVE-2020-3926 (GCVE-0-2020-3926)

Vulnerability from cvelistv5 – Published: 2020-02-03 11:00 – Updated: 2024-09-16 17:14
VLAI
Title
ServiSign Windows Versions- Arbitrary File Access
Summary
An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE
  • Arbitrary File Access
Assigner
References
Impacted products
Vendor Product Version
CHANGING ServiSign Windows versions Affected: 0 , ≤ 1.0.19.0617 (custom)
Create a notification for this product.
Date Public
2020-02-03 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:52:20.665Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ServiSign Windows versions",
          "vendor": "CHANGING",
          "versions": [
            {
              "lessThanOrEqual": "1.0.19.0617",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2020-02-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Arbitrary File Access",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-11T15:58:04.000Z",
        "orgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
        "shortName": "twcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "ServiSign Windows Versions- Arbitrary File  Access",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "AKA": "TWCERT/CC",
          "ASSIGNER": "cve@cert.org.tw",
          "DATE_PUBLIC": "2020-02-03T10:00:00.000Z",
          "ID": "CVE-2020-3926",
          "STATE": "PUBLIC",
          "TITLE": "ServiSign Windows Versions- Arbitrary File  Access"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "ServiSign Windows versions",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "0",
                            "version_value": "1.0.19.0617"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "CHANGING"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Arbitrary File Access"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006",
              "refsource": "MISC",
              "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"
            },
            {
              "name": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce",
              "refsource": "MISC",
              "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
    "assignerShortName": "twcert",
    "cveId": "CVE-2020-3926",
    "datePublished": "2020-02-03T11:00:31.233Z",
    "dateReserved": "2019-12-20T00:00:00.000Z",
    "dateUpdated": "2024-09-16T17:14:45.590Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-3926",
      "date": "2026-05-28",
      "epss": "0.00374",
      "percentile": "0.59279"
    },
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:changingtec:servisign:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"1.0.19.0617\", \"matchCriteriaId\": \"8806BFD5-AF23-418C-978B-206504623B44\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A2572D17-1DE6-457B-99CC-64AFD54487EA\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.\"}, {\"lang\": \"es\", \"value\": \"Se presenta una vulnerabilidad de acceso a archivos arbitrarios en el plugin de seguridad de ServiSign, siempre que los atacantes aprendan la funci\\u00f3n de la API espec\\u00edfica, pueden acceder a archivos arbitrarios en el sistema de destino por medio de par\\u00e1metros de la API dise\\u00f1ados.\"}]",
      "id": "CVE-2020-3926",
      "lastModified": "2024-11-21T05:31:58.370",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"twcert@cert.org.tw\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N\", \"baseScore\": 6.1, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.6, \"impactScore\": 4.0}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:C/I:N/A:N\", \"baseScore\": 7.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-02-03T11:15:12.633",
      "references": "[{\"url\": \"https://tvn.twcert.org.tw/taiwanvn/TVN-201910006\", \"source\": \"twcert@cert.org.tw\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce\", \"source\": \"twcert@cert.org.tw\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://tvn.twcert.org.tw/taiwanvn/TVN-201910006\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "twcert@cert.org.tw",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-552\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-3926\",\"sourceIdentifier\":\"twcert@cert.org.tw\",\"published\":\"2020-02-03T11:15:12.633\",\"lastModified\":\"2024-11-21T05:31:58.370\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.\"},{\"lang\":\"es\",\"value\":\"Se presenta una vulnerabilidad de acceso a archivos arbitrarios en el plugin de seguridad de ServiSign, siempre que los atacantes aprendan la funci\u00f3n de la API espec\u00edfica, pueden acceder a archivos arbitrarios en el sistema de destino por medio de par\u00e1metros de la API dise\u00f1ados.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"twcert@cert.org.tw\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":4.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:N/A:N\",\"baseScore\":7.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-552\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:changingtec:servisign:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.0.19.0617\",\"matchCriteriaId\":\"8806BFD5-AF23-418C-978B-206504623B44\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2572D17-1DE6-457B-99CC-64AFD54487EA\"}]}]}],\"references\":[{\"url\":\"https://tvn.twcert.org.tw/taiwanvn/TVN-201910006\",\"source\":\"twcert@cert.org.tw\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce\",\"source\":\"twcert@cert.org.tw\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://tvn.twcert.org.tw/taiwanvn/TVN-201910006\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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.