Vulnerability-Lookup

PYSEC-2020-52

Vulnerability from pysec - Published: 2020-12-09 17:15 - Updated: 2020-12-10 21:46

Details

jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15

Impacted products

Name	purl
jupyterhub-systemdspawner	pkg:pypi/jupyterhub-systemdspawner

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyterhub-systemdspawner",
        "purl": "pkg:pypi/jupyterhub-systemdspawner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
            }
          ],
          "repo": "https://github.com/jupyterhub/systemdspawner",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.15.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9",
        "0.9.1",
        "0.9.5",
        "0.9.6",
        "0.9.7",
        "0.9.8",
        "0.9.9",
        "0.9.10",
        "0.9.11",
        "0.9.12",
        "0.10",
        "0.11",
        "0.12",
        "0.13",
        "0.14"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26261",
    "GHSA-cg54-gpgr-4rm6"
  ],
  "details": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15",
  "id": "PYSEC-2020-52",
  "modified": "2020-12-10T21:46:00Z",
  "published": "2020-12-09T17:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/jupyterhub-systemdspawner/"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"
    }
  ]
}

CVE-2020-26261 (GCVE-0-2020-26261)

Vulnerability from cvelistv5 – Published: 2020-12-09 16:30 – Updated: 2024-08-04 15:56

Title

user-readable api tokens in systemd units

Summary

Severity

7.9 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CWE

CWE-668 - Exposure of Resource to Wrong Sphere

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8035 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/jupyterhub/systemdspawner/secu…	x_refsource_CONFIRM
https://github.com/jupyterhub/systemdspawner/comm…	x_refsource_MISC
https://github.com/jupyterhub/systemdspawner/blob…	x_refsource_MISC
https://pypi.org/project/jupyterhub-systemdspawner/	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
jupyterhub	systemdspawner	Affected: < 0.15

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:56:03.813Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://pypi.org/project/jupyterhub-systemdspawner/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "systemdspawner",
          "vendor": "jupyterhub",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.15"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-668",
              "description": "CWE-668: Exposure of Resource to Wrong Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-09T16:30:14.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://pypi.org/project/jupyterhub-systemdspawner/"
        }
      ],
      "source": {
        "advisory": "GHSA-cg54-gpgr-4rm6",
        "discovery": "UNKNOWN"
      },
      "title": "user-readable api tokens in systemd units",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-26261",
          "STATE": "PUBLIC",
          "TITLE": "user-readable api tokens in systemd units"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "systemdspawner",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 0.15"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "jupyterhub"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15"
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-668: Exposure of Resource to Wrong Sphere"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6",
              "refsource": "CONFIRM",
              "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"
            },
            {
              "name": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580",
              "refsource": "MISC",
              "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
            },
            {
              "name": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015",
              "refsource": "MISC",
              "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"
            },
            {
              "name": "https://pypi.org/project/jupyterhub-systemdspawner/",
              "refsource": "MISC",
              "url": "https://pypi.org/project/jupyterhub-systemdspawner/"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-cg54-gpgr-4rm6",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-26261",
    "datePublished": "2020-12-09T16:30:14.000Z",
    "dateReserved": "2020-10-01T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:56:03.813Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-CG54-GPGR-4RM6

Vulnerability from github – Published: 2020-12-09 16:27 – Updated: 2024-09-27 15:38

Summary

user-readable api tokens in systemd units for JupyterHub

Details

Impact

user API tokens issued to single-user servers are specified in the environment of systemd units, which are accessible to all users.

In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default.

Patches

Patched in jupyterhub-systemdspawner v0.15

Workarounds

No workaround other than upgrading systemdspawner to 0.15

For more information

If you have any questions or comments about this advisory: * Open a thread in the Jupyter forum * Email us at security@ipython.org

Severity

7.9 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

7.3 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyterhub-systemdspawner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.15.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26261"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-668"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-12-09T16:25:35Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nuser API tokens issued to single-user servers are specified in the environment of systemd units, which are accessible to all users.\n\nIn particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default.\n\n### Patches\nPatched in jupyterhub-systemdspawner v0.15\n\n### Workarounds\nNo workaround other than upgrading systemdspawner to 0.15\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open a thread in [the Jupyter forum](https://discourse.jupyter.org)\n* Email us at [security@ipython.org](mailto:security@ipython.org)",
  "id": "GHSA-cg54-gpgr-4rm6",
  "modified": "2024-09-27T15:38:37Z",
  "published": "2020-12-09T16:27:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26261"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jupyterhub/systemdspawner"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub-systemdspawner/PYSEC-2020-52.yaml"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/jupyterhub-systemdspawner"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "user-readable api tokens in systemd units for JupyterHub"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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PYSEC-2020-52

CVE-2020-26261 (GCVE-0-2020-26261)

GHSA-CG54-GPGR-4RM6

Impact

Patches

Workarounds

For more information

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour