GHSA-2Q4P-F6GF-MQR5

Vulnerability from github – Published: 2023-07-06 20:53 – Updated: 2023-08-31 18:52
VLAI?
Summary
Graylog server has partial path traversal vulnerability in Support Bundle feature
Details

A partial path traversal vulnerability exists in Graylog's Support Bundle feature. The vulnerability is caused by incorrect user input validation in an HTTP API resource.

Thanks to weiweiwei9811 for reporting this vulnerability and providing detailed information.

Impact

Graylog's Support Bundle feature allows an attacker with valid Admin role credentials to download or delete files in sibling directories of the support bundle directory.

The default data_dir in operating system packages (DEB, RPM) is set to /var/lib/graylog-server. The data directory for the Support Bundle feature is always <data_dir>/support-bundle.

Due to the partial path traversal vulnerability, an attacker with valid Admin role credentials can read or delete files in directories that start with a /var/lib/graylog-server/support-bundle directory name.

The vulnerability would allow the download or deletion of files in the following example directories.

  • /var/lib/graylog-server/support-bundle-test
  • /var/lib/graylog-server/support-bundlesdirectory

For the Graylog and Graylog Enterprise Docker images, the data_dir is set to /usr/share/graylog/data by default.

Patches

The vulnerability is fixed in Graylog version 5.1.3 and later.

Workarounds

Block all HTTP requests to the following HTTP API endpoints by using a reverse proxy server in front of Graylog.

  • GET /api/system/debug/support/bundle/download/{filename}
  • DELETE /api/system/debug/support/bundle/{filename}
Severity ?
3.3 (Low)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.graylog2:graylog2-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0"
            },
            {
              "fixed": "5.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-41044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-06T20:53:15Z",
    "nvd_published_at": "2023-08-31T18:15:09Z",
    "severity": "LOW"
  },
  "details": "A partial path traversal vulnerability exists in Graylog\u0027s [Support Bundle](https://go2docs.graylog.org/5-1/making_sense_of_your_log_data/cluster_support_bundle.htm) feature. The vulnerability is caused by incorrect user input validation in an HTTP API resource.\n\nThanks to weiweiwei9811 for reporting this vulnerability and providing detailed information.\n\n### Impact\n\nGraylog\u0027s Support Bundle feature allows an attacker with valid Admin role credentials to download or delete files in sibling directories of the support bundle directory.\n\nThe default `data_dir` in operating system packages (DEB, RPM) is set to `/var/lib/graylog-server`. The data directory for the Support Bundle feature is always `\u003cdata_dir\u003e/support-bundle`.\n\nDue to the partial path traversal vulnerability, an attacker with valid Admin role credentials can read or delete files in directories that start with a `/var/lib/graylog-server/support-bundle` directory name.\n\nThe vulnerability would allow the download or deletion of files in the following example directories.\n\n- `/var/lib/graylog-server/support-bundle-test`\n- `/var/lib/graylog-server/support-bundlesdirectory`\n\nFor the [Graylog](https://hub.docker.com/r/graylog/graylog) and [Graylog Enterprise](https://hub.docker.com/r/graylog/graylog-enterprise) Docker images, the `data_dir` is set to `/usr/share/graylog/data` by default.\n\n### Patches\n\nThe vulnerability is fixed in Graylog version 5.1.3 and later.\n\n### Workarounds\n\n\nBlock all HTTP requests to the following HTTP API endpoints by using a reverse proxy server in front of Graylog.\n\n- `GET /api/system/debug/support/bundle/download/{filename}`\n- `DELETE /api/system/debug/support/bundle/{filename}`\n",
  "id": "GHSA-2q4p-f6gf-mqr5",
  "modified": "2023-08-31T18:52:56Z",
  "published": "2023-07-06T20:53:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-2q4p-f6gf-mqr5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41044"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Graylog2/graylog2-server/commit/02b8792e6f4b829f0c1d87fcbf2d58b73458b938"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Graylog2/graylog2-server"
    },
    {
      "type": "WEB",
      "url": "https://go2docs.graylog.org/5-1/making_sense_of_your_log_data/cluster_support_bundle.htm"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Graylog server has partial path traversal vulnerability in Support Bundle feature"
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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