CVE-2022-45440
Vulnerability from cvelistv5
Published
2023-01-17 00:00
Modified
2024-08-03 14:09
Summary
A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device.
Impacted products
Vendor Product Version
Show details on NVD website


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            "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-wifi-credentials-and-improper-symbolic-links-of-ftp-for-ax7501-b0-cpe"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "product": "AX7501-B0 firmware",
          "vendor": "Zyxel",
          "versions": [
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              "version": "\u003c V5.17(ABPC.3)C0"
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          "value": "A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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        "dateUpdated": "2023-01-17T00:00:00",
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    "assignerShortName": "Zyxel",
    "cveId": "CVE-2022-45440",
    "datePublished": "2023-01-17T00:00:00",
    "dateReserved": "2022-11-15T00:00:00",
    "dateUpdated": "2024-08-03T14:09:57.074Z",
    "state": "PUBLISHED"
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  }
}


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