CVE-2020-36902 (GCVE-0-2020-36902)

Vulnerability from cvelistv5 – Published: 2025-12-10 21:05 – Updated: 2025-12-11 18:52
VLAI?
Title
UBICOD Medivision Digital Signage 1.5.1 Authorization Bypass via User Privileges
Summary
UBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the 'ft[grp]' parameter. Attackers can send a GET request to /html/user with 'ft[grp]' set to integer value '3' to gain super admin rights without authentication.
Severity ?
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
UBICOD Co., Ltd. | MEDIVISION INC. UBICOD Medivision Digital Signage Affected: Firmware 1.5.1 (2013.01.3)
Create a notification for this product.
Credits
LiquidWorm as Gjoko Krstic of Zero Science Lab
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-36902",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-11T15:52:25.810453Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-11T18:52:29.859Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "UBICOD Medivision Digital Signage",
          "vendor": "UBICOD Co., Ltd. | MEDIVISION INC.",
          "versions": [
            {
              "status": "affected",
              "version": "Firmware 1.5.1 (2013.01.3)"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "LiquidWorm as Gjoko Krstic of Zero Science Lab"
        }
      ],
      "datePublic": "2020-07-23T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the \u0027ft[grp]\u0027 parameter. Attackers can send a GET request to /html/user with \u0027ft[grp]\u0027 set to integer value \u00273\u0027 to gain super admin rights without authentication.\u003c/p\u003e"
            }
          ],
          "value": "UBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the \u0027ft[grp]\u0027 parameter. Attackers can send a GET request to /html/user with \u0027ft[grp]\u0027 set to integer value \u00273\u0027 to gain super admin rights without authentication."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-10T21:05:41.753Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-48684",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/48684"
        },
        {
          "name": "UBICOD Co., Ltd. | MEDIVISION INC.",
          "tags": [
            "product"
          ],
          "url": "http://www.medivision.co.kr"
        },
        {
          "name": "Zero Security Advisory ZSL-2020-5575",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php"
        },
        {
          "name": "VulnCheck Advisory: UBICOD Medivision Digital Signage 1.5.1 Authorization Bypass via User Privileges",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-bypass-via-user-privileges"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "UBICOD Medivision Digital Signage 1.5.1 Authorization Bypass via User Privileges",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2020-36902",
    "datePublished": "2025-12-10T21:05:41.753Z",
    "dateReserved": "2025-12-09T11:46:53.452Z",
    "dateUpdated": "2025-12-11T18:52:29.859Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-36902\",\"sourceIdentifier\":\"disclosure@vulncheck.com\",\"published\":\"2025-12-10T21:16:03.037\",\"lastModified\":\"2025-12-30T20:31:06.793\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"UBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the \u0027ft[grp]\u0027 parameter. Attackers can send a GET request to /html/user with \u0027ft[grp]\u0027 set to integer value \u00273\u0027 to gain super admin rights without authentication.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":9.3,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"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:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:medivision:medivision_digital_signage_firmware:1.5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4E7AA062-315E-443B-B5CF-53F78EE12E2C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:medivision:medivision_digital_signage:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"90842AAB-B3CB-4530-8836-10D9F6C1BFF0\"}]}]}],\"references\":[{\"url\":\"http://www.medivision.co.kr\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Product\"]},{\"url\":\"https://www.exploit-db.com/exploits/48684\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-bypass-via-user-privileges\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2020-36902\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-11T15:52:25.810453Z\"}}}], \"references\": [{\"url\": \"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-11T15:52:29.526Z\"}}], \"cna\": {\"title\": \"UBICOD Medivision Digital Signage 1.5.1 Authorization Bypass via User Privileges\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"LiquidWorm as Gjoko Krstic of Zero Science Lab\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 9.3, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"UBICOD Co., Ltd. | MEDIVISION INC.\", \"product\": \"UBICOD Medivision Digital Signage\", \"versions\": [{\"status\": \"affected\", \"version\": \"Firmware 1.5.1 (2013.01.3)\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2020-07-23T00:00:00.000Z\", \"references\": [{\"url\": \"https://www.exploit-db.com/exploits/48684\", \"name\": \"ExploitDB-48684\", \"tags\": [\"exploit\"]}, {\"url\": \"http://www.medivision.co.kr\", \"name\": \"UBICOD Co., Ltd. | MEDIVISION INC.\", \"tags\": [\"product\"]}, {\"url\": \"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php\", \"name\": \"Zero Security Advisory ZSL-2020-5575\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.vulncheck.com/advisories/ubicod-medivision-digital-signage-authorization-bypass-via-user-privileges\", \"name\": \"VulnCheck Advisory: UBICOD Medivision Digital Signage 1.5.1 Authorization Bypass via User Privileges\", \"tags\": [\"third-party-advisory\"]}], \"x_generator\": {\"engine\": \"vulncheck\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"UBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the \u0027ft[grp]\u0027 parameter. Attackers can send a GET request to /html/user with \u0027ft[grp]\u0027 set to integer value \u00273\u0027 to gain super admin rights without authentication.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUBICOD Medivision Digital Signage 1.5.1 contains an authorization bypass vulnerability that allows normal users to escalate privileges by manipulating the \u0027ft[grp]\u0027 parameter. Attackers can send a GET request to /html/user with \u0027ft[grp]\u0027 set to integer value \u00273\u0027 to gain super admin rights without authentication.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862: Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2025-12-10T21:05:41.753Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2020-36902\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-11T18:52:29.859Z\", \"dateReserved\": \"2025-12-09T11:46:53.452Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2025-12-10T21:05:41.753Z\", \"assignerShortName\": \"VulnCheck\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.