FKIE_CVE-2018-1778

Vulnerability from fkie_nvd - Published: 2018-12-20 14:29 - Updated: 2026-06-17 01:51
Severity
7.7 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
8.1 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user’s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801.
References
psirt@us.ibm.comhttp://www.ibm.com/support/docview.wss?uid=ibm10733883Patch, Vendor Advisory
psirt@us.ibm.comhttp://www.securityfocus.com/bid/106313Third Party Advisory, VDB Entry
psirt@us.ibm.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/148801VDB Entry, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.ibm.com/support/docview.wss?uid=ibm10733883Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/106313Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/148801VDB Entry, Vendor Advisory
Impacted products
Vendor Product Version
ibm api_connect *
ibm api_connect *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "API Connect",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.8.0"
            },
            {
              "status": "affected",
              "version": "2018.1"
            },
            {
              "status": "affected",
              "version": "5.0.8.4"
            },
            {
              "status": "affected",
              "version": "2018.4.1"
            }
          ]
        }
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ibm:api_connect:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2EE04F67-2883-4840-9574-7363C3CD618E",
              "versionEndIncluding": "5.0.8.4",
              "versionStartIncluding": "5.0.8.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ibm:api_connect:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7C567025-9080-4C12-9F27-005B2A7F5149",
              "versionEndIncluding": "2018.4.1.0",
              "versionStartIncluding": "2018.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user\u0026#195;\u0026#162;\u0026#194;\u0026#128;\u0026#194;\u0026#153;s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801."
    },
    {
      "lang": "es",
      "value": "IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0 y 5.0.8.4) podr\u00eda permitir que un atacante omita la autenticaci\u00f3n si se expone el modelo AccessToken en una API REST. En este caso, es posible que cualquiera cree un AccessToken para cualquier usuario, siempre y cuando conozcan el userId y puedan, por lo tanto, acceder a los datos/privilegios de los otros usuarios (si el usuario resulta ser un administrador, por ejemplo). IBM X-Force ID: 148801."
    }
  ],
  "id": "CVE-2018-1778",
  "lastModified": "2026-06-17T01:51:45.390",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.5,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-12-20T14:29:00.447",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.ibm.com/support/docview.wss?uid=ibm10733883"
    },
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/106313"
    },
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/148801"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.ibm.com/support/docview.wss?uid=ibm10733883"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/106313"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/148801"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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