{
  "name": "XZ Utils liblzma Upstream Linux Supply Chain Backdoor (CVE-2024-3094) - ATT&CK Navigator Layer",
  "versions": {
    "attack": "15",
    "navigator": "4.5",
    "layer": "4.5"
  },
  "domain": "enterprise-attack",
  "description": "MITRE ATT&CK technique mappings with verified legal evidence for case xz-utils-backdoor-liblzma.",
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    "platforms": [
      "Windows",
      "Linux",
      "macOS",
      "Network",
      "PRE"
    ]
  },
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    "countUnscored": false
  },
  "hideDisabled": false,
  "techniques": [
    {
      "techniqueID": "T1195.001",
      "score": 1,
      "color": "#f59e0b",
      "comment": "The attacker inserted malicious M4 macros into build test files during tarball release generation, modifying the build pipeline to inject binary code into liblzma.so.",
      "enabled": true,
      "metadata": [
        {
          "name": "locator",
          "value": "Openwall Disclosure by Andres Freund"
        },
        {
          "name": "status",
          "value": "reviewed"
        }
      ]
    },
    {
      "techniqueID": "T1574.006",
      "score": 1,
      "color": "#f59e0b",
      "comment": "The backdoor hooked the OpenSSH RSA_public_decrypt function via ELF indirect functions (IFUNC) before main execution, allowing custom signed payloads to bypass authentication.",
      "enabled": true,
      "metadata": [
        {
          "name": "locator",
          "value": "CISA Alert AL24-089A"
        },
        {
          "name": "status",
          "value": "reviewed"
        }
      ]
    }
  ],
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    {
      "label": "Mapped in primary evidence",
      "color": "#f59e0b"
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  "metadata": [
    {
      "name": "case_slug",
      "value": "xz-utils-backdoor-liblzma"
    },
    {
      "name": "case_title",
      "value": "XZ Utils liblzma Upstream Linux Supply Chain Backdoor (CVE-2024-3094)"
    }
  ]
}