Search

Find a vulnerability

Search criteria

    2 vulnerabilities found for snap by Canonical

    CVE-2024-1724 (GCVE-0-2024-1724)

    Vulnerability from nvd – Published: 2024-07-25 19:05 – Updated: 2024-08-01 18:48
    VLAI
    Title
    snapd allows $HOME/bin symlink
    Summary
    In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap which used the 'home' plug could use this vulnerability to install arbitrary scripts into the users PATH which may then be run by the user outside of the expected snap sandbox and hence allow them to escape confinement.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-732 - Incorrect Permission Assignment for Critical Resource
    Assigner
    Impacted products
    Vendor Product Version
    Canonical snap Affected: 0 , < 2.62 (custom)
    Create a notification for this product.
    canonical snapd Affected: 0 , < 2.62 (custom)
        cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2024-03-13 08:27
    Credits
    Neil McPhail
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "snapd",
                "vendor": "canonical",
                "versions": [
                  {
                    "lessThan": "2.62",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-1724",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-07-25T19:25:43.941220Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-07-25T19:28:23.939Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-01T18:48:21.887Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://gld.mcphail.uk/posts/explaining-cve-2024-1724/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/snapcore/snapd/pull/13689"
              }
            ],
            "title": "CVE Program Container"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "modules": [
                "Generated AppArmor policy"
              ],
              "packageName": "snapd",
              "platforms": [
                "Linux"
              ],
              "product": "snap",
              "programFiles": [
                "interfaces/builtin/home.go"
              ],
              "programRoutines": [
                {
                  "name": "homeConnectedPlugAppArmor"
                }
              ],
              "repo": "https://github.com/snapcore/snapd/",
              "vendor": "Canonical",
              "versions": [
                {
                  "lessThan": "2.62",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Neil McPhail"
            }
          ],
          "datePublic": "2024-03-13T08:27:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "In snapd versions prior to 2.62, when using AppArmor for enforcement of \nsandbox permissions, snapd failed to restrict writes to the $HOME/bin\npath. In Ubuntu, when this path exists, it is automatically added to\nthe users PATH. An attacker who could convince a user to install a\nmalicious snap which used the \u0027home\u0027 plug could use this vulnerability\nto install arbitrary scripts into the users PATH which may then be run\nby the user outside of the expected snap sandbox and hence allow them\nto escape confinement."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-1",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "LOW",
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-732",
                  "description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-07-25T19:13:07.140Z",
            "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
            "shortName": "canonical"
          },
          "references": [
            {
              "url": "https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6"
            },
            {
              "url": "https://gld.mcphail.uk/posts/explaining-cve-2024-1724/"
            },
            {
              "url": "https://github.com/snapcore/snapd/pull/13689"
            }
          ],
          "title": "snapd allows $HOME/bin symlink"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "assignerShortName": "canonical",
        "cveId": "CVE-2024-1724",
        "datePublished": "2024-07-25T19:05:23.299Z",
        "dateReserved": "2024-02-21T19:46:47.236Z",
        "dateUpdated": "2024-08-01T18:48:21.887Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }

    CVE-2024-1724 (GCVE-0-2024-1724)

    Vulnerability from cvelistv5 – Published: 2024-07-25 19:05 – Updated: 2024-08-01 18:48
    VLAI
    Title
    snapd allows $HOME/bin symlink
    Summary
    In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap which used the 'home' plug could use this vulnerability to install arbitrary scripts into the users PATH which may then be run by the user outside of the expected snap sandbox and hence allow them to escape confinement.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-732 - Incorrect Permission Assignment for Critical Resource
    Assigner
    Impacted products
    Vendor Product Version
    Canonical snap Affected: 0 , < 2.62 (custom)
    Create a notification for this product.
    canonical snapd Affected: 0 , < 2.62 (custom)
        cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2024-03-13 08:27
    Credits
    Neil McPhail
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "snapd",
                "vendor": "canonical",
                "versions": [
                  {
                    "lessThan": "2.62",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-1724",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-07-25T19:25:43.941220Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-07-25T19:28:23.939Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-01T18:48:21.887Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://gld.mcphail.uk/posts/explaining-cve-2024-1724/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/snapcore/snapd/pull/13689"
              }
            ],
            "title": "CVE Program Container"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "modules": [
                "Generated AppArmor policy"
              ],
              "packageName": "snapd",
              "platforms": [
                "Linux"
              ],
              "product": "snap",
              "programFiles": [
                "interfaces/builtin/home.go"
              ],
              "programRoutines": [
                {
                  "name": "homeConnectedPlugAppArmor"
                }
              ],
              "repo": "https://github.com/snapcore/snapd/",
              "vendor": "Canonical",
              "versions": [
                {
                  "lessThan": "2.62",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Neil McPhail"
            }
          ],
          "datePublic": "2024-03-13T08:27:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "In snapd versions prior to 2.62, when using AppArmor for enforcement of \nsandbox permissions, snapd failed to restrict writes to the $HOME/bin\npath. In Ubuntu, when this path exists, it is automatically added to\nthe users PATH. An attacker who could convince a user to install a\nmalicious snap which used the \u0027home\u0027 plug could use this vulnerability\nto install arbitrary scripts into the users PATH which may then be run\nby the user outside of the expected snap sandbox and hence allow them\nto escape confinement."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-1",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "LOW",
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-732",
                  "description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-07-25T19:13:07.140Z",
            "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
            "shortName": "canonical"
          },
          "references": [
            {
              "url": "https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6"
            },
            {
              "url": "https://gld.mcphail.uk/posts/explaining-cve-2024-1724/"
            },
            {
              "url": "https://github.com/snapcore/snapd/pull/13689"
            }
          ],
          "title": "snapd allows $HOME/bin symlink"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "assignerShortName": "canonical",
        "cveId": "CVE-2024-1724",
        "datePublished": "2024-07-25T19:05:23.299Z",
        "dateReserved": "2024-02-21T19:46:47.236Z",
        "dateUpdated": "2024-08-01T18:48:21.887Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }