{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "29b1f26239ca1819c110cdab96de22938ce01450"
            }
          ],
          "repo": "https://github.com/mitre/caldera",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in CALDERA 2.8.1. When activated, the Human plugin passes the unsanitized name parameter to a python \"os.system\" function. This allows attackers to use shell metacharacters (e.g., backticks \"``\" or dollar parenthesis \"$()\" ) in order to escape the current command and execute arbitrary shell commands.",
  "id": "CVE-2021-42561",
  "modified": "2026-03-13T21:52:23.055946289Z",
  "published": "2022-01-12T19:15:08.330Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/mitre/caldera/releases"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%20Injection%20Via%20the%20Human%20Plugin-MITRE%20Caldera"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}