CVE-2020-27352 (GCVE-0-2020-27352)

Vulnerability from cvelistv5 – Published: 2024-06-21 20:06 – Updated: 2024-08-04 16:11
VLAI?
Summary
When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.
Severity ?
9.3 (Critical)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
Vendor Product Version
Canonical Ltd. snapd Affected: 0 , < 2.48.3 (semver)
Create a notification for this product.
Credits
Gilad Reti Nimrod Stoler
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "snapd",
            "vendor": "canonical",
            "versions": [
              {
                "lessThan": "2.48.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-27352",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-05T13:14:07.392127Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-269",
                "description": "CWE-269 Improper Privilege Management",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-09T20:56:52.326Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:11:36.612Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/snapd/+bug/1910456"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/notices/USN-4728-1"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://www.cve.org/CVERecord?id=CVE-2020-27352"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "packageName": "snapd",
          "platforms": [
            "Linux"
          ],
          "product": "snapd",
          "repo": "https://github.com/snapcore/snapd",
          "vendor": "Canonical Ltd.",
          "versions": [
            {
              "lessThan": "2.48.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Gilad Reti"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Nimrod Stoler"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-21T20:06:37.992Z",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugs.launchpad.net/snapd/+bug/1910456"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://ubuntu.com/security/notices/USN-4728-1"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-27352"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2020-27352",
    "datePublished": "2024-06-21T20:06:37.992Z",
    "dateReserved": "2020-10-20T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:11:36.612Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.\"}, {\"lang\": \"es\", \"value\": \"Al generar las unidades de servicio systemd para el complemento de Docker (y otros complementos similares), snapd no especifica Delegate=yes; como resultado, systemd mover\\u00e1 los procesos de los contenedores creados y administrados por estos complementos al grupo c del daemon principal dentro del se rompe al recargar las unidades del sistema. Esto puede otorgar privilegios adicionales a un contenedor dentro del complemento que no estaban previstos originalmente.\"}]",
      "id": "CVE-2020-27352",
      "lastModified": "2024-11-21T05:21:03.163",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security@ubuntu.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"baseScore\": 9.3, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.5, \"impactScore\": 6.0}]}",
      "published": "2024-06-21T20:15:10.630",
      "references": "[{\"url\": \"https://bugs.launchpad.net/snapd/+bug/1910456\", \"source\": \"security@ubuntu.com\"}, {\"url\": \"https://ubuntu.com/security/notices/USN-4728-1\", \"source\": \"security@ubuntu.com\"}, {\"url\": \"https://www.cve.org/CVERecord?id=CVE-2020-27352\", \"source\": \"security@ubuntu.com\"}, {\"url\": \"https://bugs.launchpad.net/snapd/+bug/1910456\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://ubuntu.com/security/notices/USN-4728-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.cve.org/CVERecord?id=CVE-2020-27352\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "security@ubuntu.com",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-269\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-27352\",\"sourceIdentifier\":\"security@ubuntu.com\",\"published\":\"2024-06-21T20:15:10.630\",\"lastModified\":\"2025-08-26T17:20:35.680\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.\"},{\"lang\":\"es\",\"value\":\"Al generar las unidades de servicio systemd para el complemento de Docker (y otros complementos similares), snapd no especifica Delegate=yes; como resultado, systemd mover\u00e1 los procesos de los contenedores creados y administrados por estos complementos al grupo c del daemon principal dentro del se rompe al recargar las unidades del sistema. Esto puede otorgar privilegios adicionales a un contenedor dentro del complemento que no estaban previstos originalmente.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.3,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.0,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-269\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.48.3\",\"matchCriteriaId\":\"BC75BCAC-E8EB-4E75-AFAE-A66E88CF2590\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"338B3AAC-C147-4A31-95E7-6E8A6FB4B3FC\"}]}]}],\"references\":[{\"url\":\"https://bugs.launchpad.net/snapd/+bug/1910456\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Exploit\",\"Issue Tracking\"]},{\"url\":\"https://ubuntu.com/security/notices/USN-4728-1\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cve.org/CVERecord?id=CVE-2020-27352\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://bugs.launchpad.net/snapd/+bug/1910456\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\"]},{\"url\":\"https://ubuntu.com/security/notices/USN-4728-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cve.org/CVERecord?id=CVE-2020-27352\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://bugs.launchpad.net/snapd/+bug/1910456\", \"tags\": [\"issue-tracking\", \"x_transferred\"]}, {\"url\": \"https://ubuntu.com/security/notices/USN-4728-1\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://www.cve.org/CVERecord?id=CVE-2020-27352\", \"tags\": [\"issue-tracking\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T16:11:36.612Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2020-27352\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-05T13:14:07.392127Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*\"], \"vendor\": \"canonical\", \"product\": \"snapd\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.48.3\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-269\", \"description\": \"CWE-269 Improper Privilege Management\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-05T17:44:54.720Z\"}}], \"cna\": {\"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Gilad Reti\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Nimrod Stoler\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.3, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"repo\": \"https://github.com/snapcore/snapd\", \"vendor\": \"Canonical Ltd.\", \"product\": \"snapd\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.48.3\", \"versionType\": \"semver\"}], \"platforms\": [\"Linux\"], \"packageName\": \"snapd\"}], \"references\": [{\"url\": \"https://bugs.launchpad.net/snapd/+bug/1910456\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://ubuntu.com/security/notices/USN-4728-1\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.cve.org/CVERecord?id=CVE-2020-27352\", \"tags\": [\"issue-tracking\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.\"}], \"providerMetadata\": {\"orgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"shortName\": \"canonical\", \"dateUpdated\": \"2024-06-21T20:06:37.992Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2020-27352\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-04T16:11:36.612Z\", \"dateReserved\": \"2020-10-20T00:00:00.000Z\", \"assignerOrgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"datePublished\": \"2024-06-21T20:06:37.992Z\", \"assignerShortName\": \"canonical\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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.