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GSD-2022-25218

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
The use of the RSA algorithm without OAEP, or any other padding scheme, in telnetd_startup, allows an unauthenticated attacker on the local area network to achieve a significant degree of control over the "plaintext" to which an arbitrary blob of ciphertext will be decrypted by OpenSSL's RSA_public_decrypt() function. This weakness allows the attacker to manipulate the various iterations of the telnetd startup state machine and eventually obtain a root shell on the device, by means of an exchange of crafted UDP packets. In all versions but K2 22.5.9.163 and K3C 32.1.15.93 a successful attack also requires the exploitation of a null-byte interaction error (CVE-2022-25219).
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2022-25218",
    "description": "The use of the RSA algorithm without OAEP, or any other padding scheme, in telnetd_startup, allows an unauthenticated attacker on the local area network to achieve a significant degree of control over the \"plaintext\" to which an arbitrary blob of ciphertext will be decrypted by OpenSSL\u0027s RSA_public_decrypt() function. This weakness allows the attacker to manipulate the various iterations of the telnetd startup state machine and eventually obtain a root shell on the device, by means of an exchange of crafted UDP packets. In all versions but K2 22.5.9.163 and K3C 32.1.15.93 a successful attack also requires the exploitation of a null-byte interaction error (CVE-2022-25219).",
    "id": "GSD-2022-25218"
  },
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    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "id": "GSD-2022-25218",
      "modified": "2023-12-13T01:19:27.485773Z",
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    }
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            "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
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            "baseScore": 8.1,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      },
      "lastModifiedDate": "2022-03-17T19:21Z",
      "publishedDate": "2022-03-10T17:47Z"
    }
  }
}



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