ghsa-jvpj-w5q8-mg28
Vulnerability from github
Published
2025-10-07 00:31
Modified
2025-10-07 00:31
Severity ?
8.6 (High) - CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Details

Tesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability. The TCU runs the Android Debug Bridge (adbd) as root and, despite a “lockdown” check that disables adb shell, still permits adb push/pull and adb forward. Because adbd is privileged and the device’s USB port is exposed externally, an attacker with physical access can write an arbitrary file to a writable location and then overwrite the kernel’s uevent_helper or /proc/sys/kernel/hotplug entries via ADB, causing the script to be executed with root privileges.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34251"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T00:15:34Z",
    "severity": "HIGH"
  },
  "details": "Tesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability. The TCU runs the Android Debug Bridge (adbd) as root and, despite a \u201clockdown\u201d check that disables adb shell, still permits adb push/pull and adb forward. Because adbd is privileged and the device\u2019s USB port is exposed externally, an attacker with physical access can write an arbitrary file to a writable location and then overwrite the kernel\u2019s uevent_helper or /proc/sys/kernel/hotplug entries via ADB, causing the script to be executed with root privileges.",
  "id": "GHSA-jvpj-w5q8-mg28",
  "modified": "2025-10-07T00:31:11Z",
  "published": "2025-10-07T00:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34251"
    },
    {
      "type": "WEB",
      "url": "https://www.nccgroup.com/research-blog/technical-advisory-tesla-telematics-control-unit-adb-auth-bypass"
    },
    {
      "type": "WEB",
      "url": "https://www.tesla.com"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/tesla-tcu-auth-bypass"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}


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