pysec - pysec-2022-45

pysec-2022-45

Vulnerability from pysec

Published

2022-01-18 23:15

Modified

2022-03-09 00:16

Details

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. The website mode of the onionshare allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images.

Impacted products

Name	purl
onionshare-cli	pkg:pypi/onionshare-cli

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "onionshare-cli",
        "purl": "pkg:pypi/onionshare-cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3",
        "2.3.1",
        "2.3.2",
        "2.3.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21694",
    "GHSA-h29c-wcm8-883h"
  ],
  "details": "OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. The website mode of the onionshare allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images.",
  "id": "PYSEC-2022-45",
  "modified": "2022-03-09T00:16:43.398323Z",
  "published": "2022-01-18T23:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h"
    },
    {
      "type": "WEB",
      "url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/onionshare/onionshare/issues/1389"
    }
  ]
}

CVE-2022-21694 (GCVE-0-2022-21694)

Vulnerability from cvelistv5

Published

2022-01-18 22:20

Modified

2025-04-23 19:10

Severity ?

3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Summary

References

▼	URL	Tags
	https://github.com/onionshare/onionshare/releases/tag/v2.5	x_refsource_MISC
	https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h	x_refsource_CONFIRM
	https://github.com/onionshare/onionshare/issues/1389	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	onionshare	onionshare	Version: < 2.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:53:34.707Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/onionshare/onionshare/issues/1389"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-21694",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T14:11:52.064770Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:10:18.217Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "onionshare",
          "vendor": "onionshare",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. The website mode of the onionshare allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-732",
              "description": "CWE-732: Incorrect Permission Assignment for Critical Resource",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-18T22:20:10.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onionshare/onionshare/issues/1389"
        }
      ],
      "source": {
        "advisory": "GHSA-h29c-wcm8-883h",
        "discovery": "UNKNOWN"
      },
      "title": "OTF-006: Broken Website Hardening Control: The CSP can be turned on or off but not configured for the specific needs of the website",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-21694",
          "STATE": "PUBLIC",
          "TITLE": "OTF-006: Broken Website Hardening Control: The CSP can be turned on or off but not configured for the specific needs of the website"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "onionshare",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 2.5"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "onionshare"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. The website mode of the onionshare allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-732: Incorrect Permission Assignment for Critical Resource"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/onionshare/onionshare/releases/tag/v2.5",
              "refsource": "MISC",
              "url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
            },
            {
              "name": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h",
              "refsource": "CONFIRM",
              "url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h"
            },
            {
              "name": "https://github.com/onionshare/onionshare/issues/1389",
              "refsource": "MISC",
              "url": "https://github.com/onionshare/onionshare/issues/1389"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-h29c-wcm8-883h",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-21694",
    "datePublished": "2022-01-18T22:20:10.000Z",
    "dateReserved": "2021-11-16T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:10:18.217Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

ghsa-h29c-wcm8-883h

Vulnerability from github

Published

2022-01-21 23:20

Modified

2024-10-07 21:16

Severity ?

3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Summary

Incorrect Permission Assignment for Critical Resource in OnionShare

Details

Between September 26, 2021 and October 8, 2021, Radically Open Security conducted a penetration test of OnionShare 2.4, funded by the Open Technology Fund's Red Team lab. This is an issue from that penetration test.

Vulnerability ID: OTF-006
Vulnerability type: Broken Website Hardening Control
Threat level: Low

Description:

The CSP can be turned on or off but not configured for the specific needs of the website.

Technical description:

The website mode of the application allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images.

If CSP were configurable, the website creator could harden it accordingly to the needs of the application.

As this issue correlates with the Github issue for exposing the flask application directly (https://github.com/onionshare/ onionshare/issues/1389), it can be assumed that this can be solved by either changing to a well-known webserver, which supports this kind of configuration, or enhancing the status quo by making the CSP a configurable part of each website.

We believe that bundling the nginx or apache webserver would add complexity and dependencies to the application that could result in a larger attack surface - as these packages receive regular security updates. On the other hand it is not recommended to directly expose the flask webserver, due to lack of hardening. This is a trade-off which needs to be evaluated by the Onionshare developers, as multiple features are involved. Ideally the application user could choose between the built-in flask webserver or a system webserver of choice.

Impact:

As this is a general weakness and not a direct vulnerability in the Onionshare application, the direct impact of this issue is rather low.

Recommendation:

Consider offering a configurable webserver choice
Consider configurable CSP

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "onionshare-cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2"
            },
            {
              "fixed": "2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21694"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-19T19:32:41Z",
    "nvd_published_at": "2022-01-18T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Between September 26, 2021 and October 8, 2021, [Radically Open Security](https://www.radicallyopensecurity.com/) conducted a penetration test of OnionShare 2.4, funded by the Open Technology Fund\u0027s [Red Team lab](https://www.opentech.fund/labs/red-team-lab/). This is an issue from that penetration test.\n\n- Vulnerability ID: OTF-006\n- Vulnerability type: Broken Website Hardening Control\n- Threat level: Low\n\n## Description:\n\nThe CSP can be turned on or off but not configured for the specific needs of the website.\n\n## Technical description:\n\nThe website mode of the application allows to use a hardened CSP, which will block any scripts and external resources. It is not possible to configure this CSP for individual pages and therefore the security enhancement cannot be used for websites using javascript or external resources like fonts or images.\n\nIf CSP were configurable, the website creator could harden it accordingly to the needs of the application.\n\nAs this issue correlates with the Github issue for exposing the flask application directly (https://github.com/onionshare/ onionshare/issues/1389), it can be assumed that this can be solved by either changing to a well-known webserver, which supports this kind of configuration, or enhancing the status quo by making the CSP a configurable part of each website.\n\nWe believe that bundling the nginx or apache webserver would add complexity and dependencies to the application that could result in a larger attack surface - as these packages receive regular security updates. On the other hand it is not recommended to directly expose the flask webserver, due to lack of hardening. This is a trade-off which needs to be evaluated by the Onionshare developers, as multiple features are involved. Ideally the application user could choose between the built-in flask webserver or a system webserver of choice.\n\n## Impact:\n\nAs this is a general weakness and not a direct vulnerability in the Onionshare application, the direct impact of this issue is rather low.\n\n## Recommendation:\n\n- Consider offering a configurable webserver choice\n- Consider configurable CSP",
  "id": "GHSA-h29c-wcm8-883h",
  "modified": "2024-10-07T21:16:33Z",
  "published": "2022-01-21T23:20:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-h29c-wcm8-883h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21694"
    },
    {
      "type": "WEB",
      "url": "https://github.com/onionshare/onionshare/issues/1389"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/onionshare/onionshare"
    },
    {
      "type": "WEB",
      "url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/onionshare-cli/PYSEC-2022-45.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Incorrect Permission Assignment for Critical Resource in OnionShare"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2022-45

Vulnerability from pysec

CVE-2022-21694 (GCVE-0-2022-21694)

Vulnerability from cvelistv5

ghsa-h29c-wcm8-883h

Vulnerability from github

Description:

Technical description:

Impact:

Recommendation:

Tags

Sightings

Nomenclature