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ubuntu-cve-2020-12689
Vulnerability from osv_ubuntu
Published
2020-05-07 00:15
Modified
2025-10-24 04:48
Summary
Details

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "keystone",
            "binary_version": "2:9.3.0-0ubuntu3.2"
          },
          {
            "binary_name": "python-keystone",
            "binary_version": "2:9.3.0-0ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "keystone",
        "purl": "pkg:deb/ubuntu/keystone@2:9.3.0-0ubuntu3.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:8.0.0-0ubuntu1",
        "2:9.0.0~b1-0ubuntu1",
        "2:9.0.0~b2-0ubuntu1",
        "2:9.0.0~b3-0ubuntu1",
        "2:9.0.0~rc1-0ubuntu1",
        "2:9.0.0-0ubuntu1",
        "2:9.0.2-0ubuntu1",
        "2:9.0.2-0ubuntu2",
        "2:9.1.0-0ubuntu1",
        "2:9.2.0-0ubuntu1",
        "2:9.3.0-0ubuntu1",
        "2:9.3.0-0ubuntu2",
        "2:9.3.0-0ubuntu3",
        "2:9.3.0-0ubuntu3.1",
        "2:9.3.0-0ubuntu3.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "keystone",
            "binary_version": "2:13.0.4-0ubuntu1"
          },
          {
            "binary_name": "python-keystone",
            "binary_version": "2:13.0.4-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "keystone",
        "purl": "pkg:deb/ubuntu/keystone@2:13.0.4-0ubuntu1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:13.0.4-0ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:12.0.0-0ubuntu1",
        "2:13.0.0~b1-0ubuntu1",
        "2:13.0.0~b2-0ubuntu1",
        "2:13.0.0~b3-0ubuntu1",
        "2:13.0.0~rc1-0ubuntu1",
        "2:13.0.0~rc2-0ubuntu1",
        "2:13.0.0-0ubuntu1",
        "2:13.0.1-0ubuntu1",
        "2:13.0.2-0ubuntu1",
        "2:13.0.2-0ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.",
  "id": "UBUNTU-CVE-2020-12689",
  "modified": "2025-10-24T04:48:29Z",
  "published": "2020-05-07T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12689"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2020/05/06/5"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4480-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-12689"
    }
  ],
  "related": [
    "USN-4480-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-12689"
  ]
}



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