Vulnerability-Lookup

GHSA-9C9V-W225-V5RG

Vulnerability from github – Published: 2023-08-15 20:35 – Updated: 2023-08-23 17:19

Summary

Ghost vulnerable to arbitrary file read via symlinks in content import

Details

Impact

A vulnerability in Ghost allows authenticated users to upload files which are symlinks. This can be exploited to perform an arbitrary file read of any file on the operating system.

Site administrators can check for exploitation of this issue by looking for unknown symlinks within Ghost's content/ folder

Vulnerable versions

This security vulnerability is present in Ghost ≤ v5.59.0.

Patches

v5.59.1 contains a fix for this issue.

For more information

If you have any questions or comments about this advisory: * Email us at security@ghost.org

Severity

4.9 (Medium)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ghost"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.59.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-40028"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-15T20:35:20Z",
    "nvd_published_at": "2023-08-15T18:15:10Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA vulnerability in Ghost allows authenticated users to upload files which are symlinks. This can be exploited to perform an arbitrary file read of any file on the operating system.\n\nSite administrators can check for exploitation of this issue by looking for unknown symlinks within Ghost\u0027s `content/` folder\n\n### Vulnerable versions\n\nThis security vulnerability is present in Ghost \u2264 v5.59.0.\n\n### Patches\n\nv5.59.1 contains a fix for this issue.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Email us at [security@ghost.org](mailto:security@ghost.org)\n",
  "id": "GHSA-9c9v-w225-v5rg",
  "modified": "2023-08-23T17:19:50Z",
  "published": "2023-08-15T20:35:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9c9v-w225-v5rg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40028"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f77159c0795928bdd20f41205"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/TryGhost/Ghost"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ghost vulnerable to arbitrary file read via symlinks in content import"
}

CVE-2023-40028 (GCVE-0-2023-40028)

Vulnerability from cvelistv5 – Published: 2023-08-15 17:25 – Updated: 2024-10-02 17:45

Title

Arbitrary file read via symlinks in Ghost

Summary

Ghost is an open source content management system. Versions prior to 5.59.1 are subject to a vulnerability which allows authenticated users to upload files that are symlinks. This can be exploited to perform an arbitrary file read of any file on the host operating system. Site administrators can check for exploitation of this issue by looking for unknown symlinks within Ghost's `content/` folder. Version 5.59.1 contains a fix for this issue. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

4.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-02 17:45 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/690fbf3f…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: < 5.59.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:24:54.629Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9c9v-w225-v5rg",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9c9v-w225-v5rg"
          },
          {
            "name": "https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f77159c0795928bdd20f41205",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f77159c0795928bdd20f41205"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-40028",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-02T17:45:27.440128Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-02T17:45:39.305Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Ghost",
          "vendor": "TryGhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.59.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ghost is an open source content management system. Versions prior to 5.59.1 are subject to a vulnerability which allows authenticated users to upload files that are symlinks. This can be exploited to perform an arbitrary file read of any file on the host operating system. Site administrators can check for exploitation of this issue by looking for unknown symlinks within Ghost\u0027s `content/` folder. Version 5.59.1 contains a fix for this issue. All users are advised to upgrade. There are no known workarounds for this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-15T17:25:16.758Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9c9v-w225-v5rg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9c9v-w225-v5rg"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f77159c0795928bdd20f41205",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f77159c0795928bdd20f41205"
        }
      ],
      "source": {
        "advisory": "GHSA-9c9v-w225-v5rg",
        "discovery": "UNKNOWN"
      },
      "title": "Arbitrary file read via symlinks in Ghost"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-40028",
    "datePublished": "2023-08-15T17:25:16.758Z",
    "dateReserved": "2023-08-08T13:46:25.244Z",
    "dateUpdated": "2024-10-02T17:45:39.305Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

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