Vulnerability-Lookup

PYSEC-2023-86

Vulnerability from pysec - Published: 2023-03-08 00:15 - Updated: 2023-06-14 18:28

Details

OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both lxml and xml.etree) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See GHSA-8h9c-r582-mggc for details.

Impacted products

Name	purl
owslib	pkg:pypi/owslib

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "owslib",
        "purl": "pkg:pypi/owslib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b92687702be9576c0681bb11cad21eb631b9122f"
            }
          ],
          "repo": "https://github.com/geopython/OWSLib",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.28.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.10.0",
        "0.10.1",
        "0.10.2",
        "0.10.3",
        "0.11.0",
        "0.11.1",
        "0.11.2",
        "0.12.0",
        "0.13.0",
        "0.14.0",
        "0.15.0",
        "0.16.0",
        "0.17.0",
        "0.17.1",
        "0.18.0",
        "0.19.0",
        "0.19.1",
        "0.19.2",
        "0.2.0",
        "0.2.1",
        "0.20.0",
        "0.21.0",
        "0.22.0",
        "0.23.0",
        "0.24.0",
        "0.24.1",
        "0.25.0",
        "0.26.0",
        "0.27.0",
        "0.27.1",
        "0.27.2",
        "0.28.0",
        "0.3",
        "0.3.1",
        "0.4.0",
        "0.5.0",
        "0.5.1",
        "0.6.0",
        "0.6.1",
        "0.7.0",
        "0.7.1",
        "0.7.2",
        "0.8.0",
        "0.8.1",
        "0.8.10",
        "0.8.11",
        "0.8.12",
        "0.8.13",
        "0.8.2",
        "0.8.3",
        "0.8.4",
        "0.8.5",
        "0.8.6",
        "0.8.7",
        "0.8.8",
        "0.8.9",
        "0.9.0",
        "0.9.1",
        "0.9.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27476",
    "GHSA-8h9c-r582-mggc"
  ],
  "details": "OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib\u0027s XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details.",
  "id": "PYSEC-2023-86",
  "modified": "2023-06-14T18:28:54.683011Z",
  "published": "2023-03-08T00:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2023/dsa-5426"
    }
  ]
}

CVE-2023-27476 (GCVE-0-2023-27476)

Vulnerability from cvelistv5 – Published: 2023-03-07 23:20 – Updated: 2025-02-25 15:00

Title

XML External Entity (XXE) Injection in OWSLib

Summary

OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details.

Severity

8.2 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-25 14:31 UTC

CWE

CWE-611 - Improper Restriction of XML External Entity Reference

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/geopython/OWSLib/security/advi…	x_refsource_CONFIRM
https://github.com/geopython/OWSLib/pull/863/comm…	x_refsource_MISC
https://securitylab.github.com/advisories/GHSL-20…	x_refsource_MISC
https://www.debian.org/security/2023/dsa-5426
https://lists.debian.org/debian-lts-announce/2023…

Impacted products

1 product

Vendor	Product	Version
geopython	OWSLib	Affected: < 0.28.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T12:09:43.480Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc"
          },
          {
            "name": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f"
          },
          {
            "name": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib/",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2023/dsa-5426"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-27476",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-25T14:31:26.603389Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-25T15:00:10.207Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OWSLib",
          "vendor": "geopython",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.28.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib\u0027s XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611: Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-25T20:06:13.081Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc"
        },
        {
          "name": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f"
        },
        {
          "name": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib/",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib/"
        },
        {
          "url": "https://www.debian.org/security/2023/dsa-5426"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html"
        }
      ],
      "source": {
        "advisory": "GHSA-8h9c-r582-mggc",
        "discovery": "UNKNOWN"
      },
      "title": "XML External Entity (XXE) Injection in OWSLib"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-27476",
    "datePublished": "2023-03-07T23:20:32.878Z",
    "dateReserved": "2023-03-01T19:03:56.632Z",
    "dateUpdated": "2025-02-25T15:00:10.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-8H9C-R582-MGGC

Vulnerability from github – Published: 2023-03-07 20:41 – Updated: 2024-10-07 21:17

Summary

OWSLib vulnerable to XML External Entity (XXE) Injection

Details

Impact

OWSLib's XML parser (which supports both lxml and xml.etree) does not disable entity resolution for lxml, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase.

Patches

Use only lxml for XML handling, adding resolve_entities=False to lxml's parser: https://github.com/geopython/OWSLib/pull/863

Workarounds

patch_well_known_namespaces(etree)
etree.set_default_parser(
    parser=etree.XMLParser(resolve_entities=False)
)

References

GHSL-2022-131

Severity

8.2 (High)


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

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "OWSLib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.28.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27476"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-07T20:41:36Z",
    "nvd_published_at": "2023-03-08T00:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nOWSLib\u0027s XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution for `lxml`, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase.\n\n### Patches\n\n- Use only lxml for XML handling, adding `resolve_entities=False` to `lxml`\u0027s parser: https://github.com/geopython/OWSLib/pull/863\n\n### Workarounds\n\n```python\npatch_well_known_namespaces(etree)\netree.set_default_parser(\n    parser=etree.XMLParser(resolve_entities=False)\n)\n```\n\n### References\n\n- [`GHSL-2022-131`](https://securitylab.github.com/advisories/GHSL-2022-131_OWSLib/)\n",
  "id": "GHSA-8h9c-r582-mggc",
  "modified": "2024-10-07T21:17:55Z",
  "published": "2023-03-07T20:41:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27476"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/OWSLib/pull/863"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/geopython/OWSLib"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/OWSLib/releases/tag/0.28.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/owslib/PYSEC-2023-86.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2022-131_owslib"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5426"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OWSLib vulnerable to XML External Entity (XXE) Injection"
}

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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

PYSEC-2023-86

CVE-2023-27476 (GCVE-0-2023-27476)

GHSA-8H9C-R582-MGGC

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature

Related by attack behaviour