GHSA-52Q8-877J-GGHQ

Vulnerability from github – Published: 2020-11-11 15:54 – Updated: 2024-10-07 14:54
VLAI
Summary
MoinMoin vulnerable to remote code execution via cache action
Details

Impact

The cache action in action/cache.py allows directory traversal through a crafted HTTP request. An attacker who can upload attachments to the wiki can use this to achieve remote code execution.

Patches

Users are strongly advised to upgrade to a patched version.

MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.

Workarounds

It is not advised to work around this, but to upgrade MoinMoin to a patched version.

That said, a work around via disabling the cache or the AttachFile action might be possible.

Also, it is of course helpful if you give write permissions (which include uploading attachments) only to trusted users.

Credits

This vulnerability was discovered by Michael Chapman.

For more information

If you have any questions or comments about this advisory, email me at twaldmann@thinkmo.de.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "moin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-25074"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-11-11T15:51:56Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nThe cache action in action/cache.py allows directory traversal through a crafted HTTP request. An attacker who can upload attachments to the wiki can use this to achieve remote code execution.\n\n### Patches\nUsers are strongly advised to upgrade to a patched version.\n\nMoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.\n\n### Workarounds\nIt is not advised to work around this, but to upgrade MoinMoin to a patched version.\n\nThat said, a work around via disabling the `cache` or the `AttachFile` action might be possible.\n\nAlso, it is of course helpful if you give `write` permissions (which include uploading attachments) only to trusted users.\n\n### Credits\n\nThis vulnerability was discovered by Michael Chapman.\n\n### For more information\nIf you have any questions or comments about this advisory, email me at [twaldmann@thinkmo.de](mailto:twaldmann@thinkmo.de).",
  "id": "GHSA-52q8-877j-gghq",
  "modified": "2024-10-07T14:54:33Z",
  "published": "2020-11-11T15:54:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/moinwiki/moin-1.9/security/advisories/GHSA-52q8-877j-gghq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25074"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moinwiki/moin-1.9/commit/6b96a9060069302996b5af47fd4a388fc80172b7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moinwiki/moin"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/moin/PYSEC-2020-67.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/moin"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4787"
    },
    {
      "type": "WEB",
      "url": "http://moinmo.in/SecurityFixes"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MoinMoin vulnerable to remote code execution via cache action"
}



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