{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.5.2.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.powernukkit:powernukkit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-400",
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-04T22:06:05Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Summary\nThe version used of Log4j, the library used for logging by PowerNukkit, is subject to a remote code execution vulnerability via the ldap JNDI parser.\nIt\u0027s well detailed at [CVE-2021-44228](https://github.com/advisories/GHSA-jfh8-c2jp-5v3q) and  CVE-2021-45105(https://github.com/advisories/GHSA-p6xc-xr62-6r2g).\n\n### Impact\nMalicious client code could be used to send messages and cause remote code execution on the server.\n\n### Patches\nPowerNukkit `1.5.2.1` is a patch-release that only updates the Log4j version to `2.17.0` and should be used instead of `1.5.2.0`.\nAll versions prior to `1.5.2.1` are affected and are not patched.\n\n### Workarounds\nIf you can\u0027t upgrade, you can use the `-Dlog4j2.formatMsgNoLookups=true` startup argument as remediation, as this prevents the vulnerability from happening.\n\n### References\nhttps://github.com/advisories/GHSA-jfh8-c2jp-5v3q\nhttps://github.com/advisories/GHSA-p6xc-xr62-6r2g\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [the PowerNukkit repository](https://github.com/PowerNukkit/PowerNukkit/issues)\n",
  "id": "GHSA-3qpm-h9ch-px3c",
  "modified": "2022-01-04T22:06:05Z",
  "published": "2022-01-06T18:31:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PowerNukkit/PowerNukkit/security/advisories/GHSA-3qpm-h9ch-px3c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PowerNukkit/PowerNukkit"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Remote code injection, Improper Input Validation and Uncontrolled Recursion in Log4j library"
}