cvelistv5 - cve-2023-41339

CVE-2023-41339 (GCVE-0-2023-41339)

Vulnerability from cvelistv5 – Published: 2023-10-24 20:15 – Updated: 2024-09-11 18:00

Summary

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The WMS specification defines an ``sld=<url>`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied "dynamic styling". Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery. This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access. This vulnerability has been patched in versions 2.22.5 and 2.23.2.

Severity ?

8.6 (High)


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

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

URL

Tags

	https://github.com/geoserver/geoserver/security/a…	x_refsource_CONFIRM
	https://github.com/geoserver/geoserver/releases/t…	x_refsource_MISC
	https://github.com/geoserver/geoserver/releases/t…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	geoserver	geoserver	Affected: < 2.22.5 Affected: >= 2.23.0, < 2.23.2

Show details on NVD website

JSON

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GHSA-CQPC-X2C6-2GMF

Vulnerability from github – Published: 2023-10-24 19:20 – Updated: 2024-03-06 23:57

Summary

Unsecured WMS dynamic styling sld=<url> parameter affords blind unauthenticated SSRF

Details

Summary

The WMS specification defines an sld=<url> parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied "dynamic styling". Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery.

It is possible to use this for "Blind SSRF" on the WMS endpoint to steal NetNTLMv2 hashes via file requests to malicious servers.

Details

This vulnerability requires:

WMS Settings dynamic styling being enabled
Security URL checks to be disabled, or to be enabled and allowing file:\\* access

Impact

This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access.

Mitigation

The ability to reference an external URL location is defined by the WMS standard GetMap, GetFeatureInfo and GetLegendGraphic operations. These operations are defined by an Industry and International standard and cannot be redefined by the GeoServer application in isolation.

To disable dynamic styling on GeoServer 2.10.3 and GeoServer 2.11.1:

Navigate to Services > WMS Settings page
Locate Dynamic styling heading
Select the Disable usage of SLD and SLD_BODY parameters in GET requests and user styles in POST checkbox.

Resolution

To allow dynamic styling safely on GeoServer 2.22.5 and GeoServer 2.23.2:

Navigate to Security > URL Checks
Enable URL Checks are enabled setting
Check the user manual for examples of how to trust specific locations: ^https://styles\.server\.net/cartography/.*$
Enable dynamic styling on the Services > WMS Settings page, deselect the Disable usage of SLD and SLD_BODY parameters in GET requests and user styles in POST checkbox.

Use of dynamic styling safely is on by default in GeoServer 2.24.0.

References

Severity ?

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geoserver:gs-wms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.22.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geoserver:gs-wms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.23.0"
            },
            {
              "fixed": "2.23.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geoserver.web:gs-web-app"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.22.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geoserver.web:gs-web-app"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.23.0"
            },
            {
              "fixed": "2.23.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-41339"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-24T19:20:34Z",
    "nvd_published_at": "2023-10-25T18:17:30Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nThe WMS specification defines an ``sld=\u003curl\u003e`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied \"dynamic styling\".  Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery.\n \nIt is possible to use this for \"Blind SSRF\" on the WMS endpoint to steal NetNTLMv2 hashes via file requests to malicious servers.\n\n### Details\n\nThis vulnerability requires:\n\n* WMS Settings dynamic styling being enabled\n* Security URL checks to be disabled, or to be enabled and allowing ``file:\\\\*`` access\n\n### Impact\n\nThis vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access.\n\n### Mitigation\n\nThe ability to reference an external URL location is defined by the WMS standard GetMap, GetFeatureInfo and GetLegendGraphic operations. These operations are defined by an Industry and International standard and cannot be redefined by the GeoServer application in isolation.\n\nTo disable dynamic styling on GeoServer 2.10.3 and GeoServer 2.11.1:\n\n1. Navigate to **Services \u003e WMS Settings** page\n2. Locate **Dynamic styling** heading\n3. Select the **Disable usage of SLD and SLD_BODY parameters in GET requests and user styles in POST** checkbox.\n\n### Resolution\n\nTo allow dynamic styling safely on GeoServer 2.22.5 and GeoServer 2.23.2:\n\n1. Navigate to **Security \u003e URL Checks**\n2. Enable **URL Checks are enabled** setting\n3. Check the user manual for [examples](https://docs.geoserver.org/latest/en/user/security/urlchecks.html#example-regex-patterns) of how to trust specific locations:\n   ``^https://styles\\.server\\.net/cartography/.*$``\n4. Enable dynamic styling on the **Services \u003e WMS Settings** page, deselect the **Disable usage of SLD and SLD_BODY parameters in GET requests and user styles in POST** checkbox.\n\nUse of dynamic styling safely is on by default in GeoServer 2.24.0.\n\n### References\n\n* [Disabling usage of dynamic styling in GetMap, GetFeatureInfo and GetLegendGraphic requests](https://docs.geoserver.org/latest/en/user/services/wms/webadmin.html#disabling-usage-of-dynamic-styling-in-getmap-getfeatureinfo-and-getlegendgraphic-requests)\n* [URL Checks](https://docs.geoserver.org/latest/en/user/security/urlchecks.html)",
  "id": "GHSA-cqpc-x2c6-2gmf",
  "modified": "2024-03-06T23:57:16Z",
  "published": "2023-10-24T19:20:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41339"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/geoserver/geoserver"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.22.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.23.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unsecured WMS dynamic styling sld=\u003curl\u003e parameter affords blind unauthenticated SSRF"
}

FKIE_CVE-2023-41339

Vulnerability from fkie_nvd - Published: 2023-10-25 18:17 - Updated: 2024-11-21 08:21

Severity ?

8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/geoserver/geoserver/releases/tag/2.22.5	Release Notes
security-advisories@github.com	https://github.com/geoserver/geoserver/releases/tag/2.23.2	Release Notes
security-advisories@github.com	https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf	Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/geoserver/geoserver/releases/tag/2.22.5	Release Notes
af854a3a-2127-422b-91ae-364da2661108	https://github.com/geoserver/geoserver/releases/tag/2.23.2	Release Notes
af854a3a-2127-422b-91ae-364da2661108	https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf	Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	osgeo	geoserver	*
	osgeo	geoserver	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:osgeo:geoserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0BB82E9C-10E3-41B9-AA40-80D45DC3989F",
              "versionEndExcluding": "2.22.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:osgeo:geoserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "765C2F28-6A4F-42C4-AA52-D984D0F2F0A6",
              "versionEndExcluding": "2.23.2",
              "versionStartIncluding": "2.23.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The WMS specification defines an ``sld=\u003curl\u003e`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied \"dynamic styling\".  Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery. This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access. This vulnerability has been patched in versions 2.22.5 and 2.23.2."
    },
    {
      "lang": "es",
      "value": "GeoServer es un servidor de software de c\u00f3digo abierto escrito en Java que permite a los usuarios compartir y editar datos geoespaciales. La especificaci\u00f3n WMS define un par\u00e1metro ``sld=`` para las operaciones GetMap, GetLegendGraphic y GetFeatureInfo para el \"estilo din\u00e1mico\" proporcionado por el usuario. Habilitar el uso de estilos din\u00e1micos, sin configurar tambi\u00e9n comprobaciones de URL, brinda la oportunidad de Server-Side Request Forgery (SSRF). Esta vulnerabilidad se puede utilizar para robar hashes NetNTLMv2 del usuario que podr\u00edan transmitirse o descifrarse externamente para obtener m\u00e1s acceso. Esta vulnerabilidad ha sido parcheada en las versiones 2.22.5 y 2.23.2."
    }
  ],
  "id": "CVE-2023-41339",
  "lastModified": "2024-11-21T08:21:06.620",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-10-25T18:17:30.840",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.22.5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.23.2"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.22.5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/geoserver/geoserver/releases/tag/2.23.2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GSD-2023-41339

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-41339

Aliases

CVE-2023-41339

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-41339",
    "id": "GSD-2023-41339"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-41339"
      ],
      "details": "GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The WMS specification defines an ``sld=\u003curl\u003e`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied \"dynamic styling\".  Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery. This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access. This vulnerability has been patched in versions 2.22.5 and 2.23.2.",
      "id": "GSD-2023-41339",
      "modified": "2023-12-13T01:20:45.704969Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
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        "ASSIGNER": "security-advisories@github.com",
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      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "geoserver",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 2.22.5"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 2.23.0, \u003c 2.23.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "geoserver"
            }
          ]
        }
      },
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          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.1"
          }
        ]
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              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
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            "refsource": "MISC",
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          },
          {
            "name": "https://github.com/geoserver/geoserver/releases/tag/2.22.5",
            "refsource": "MISC",
            "url": "https://github.com/geoserver/geoserver/releases/tag/2.22.5"
          },
          {
            "name": "https://github.com/geoserver/geoserver/releases/tag/2.23.2",
            "refsource": "MISC",
            "url": "https://github.com/geoserver/geoserver/releases/tag/2.23.2"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-cqpc-x2c6-2gmf",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:osgeo:geoserver:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.23.2",
                "versionStartIncluding": "2.23.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:osgeo:geoserver:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.22.5",
                "vulnerable": true
              }
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            "operator": "OR"
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        "description": {
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            }
          ]
        },
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                "Vendor Advisory"
              ],
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            },
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              "refsource": "MISC",
              "tags": [
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            }
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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          },
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          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-10-31T19:53Z",
      "publishedDate": "2023-10-25T18:17Z"
    }
  }
}

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.

Action not permitted

CVE-2023-41339 (GCVE-0-2023-41339)

GHSA-CQPC-X2C6-2GMF

Summary

Details

Impact

Mitigation

Resolution

References

FKIE_CVE-2023-41339

GSD-2023-41339

Tags

Sightings

Nomenclature