GHSA-PM5V-J6JX-WMR3

Vulnerability from github – Published: 2022-05-14 03:19 – Updated: 2022-05-14 03:19
VLAI?
Details

An issue was discovered in phpLiteAdmin 1.9.5 through 1.9.7.1. Due to loose comparison with '==' instead of '===' in classes/Authorization.php for the user-provided login password, it is possible to login with a simpler password if the password has the form of a power in scientific notation (like '2e2' for '200' or '0e1234' for '0'). This is possible because, in the loose comparison case, PHP interprets the string as a number in scientific notation, and thus converts it to a number. After that, the comparison with '==' casts the user input (e.g., the string '200' or '0') to a number, too. Hence the attacker can login with just a '0' or a simple number he has to brute force. Strong comparison with '===' prevents the cast into numbers.

Severity ?
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-10362"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-04-25T05:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in phpLiteAdmin 1.9.5 through 1.9.7.1. Due to loose comparison with \u0027==\u0027 instead of \u0027===\u0027 in classes/Authorization.php for the user-provided login password, it is possible to login with a simpler password if the password has the form of a power in scientific notation (like \u00272e2\u0027 for \u0027200\u0027 or \u00270e1234\u0027 for \u00270\u0027). This is possible because, in the loose comparison case, PHP interprets the string as a number in scientific notation, and thus converts it to a number. After that, the comparison with \u0027==\u0027 casts the user input (e.g., the string \u0027200\u0027 or \u00270\u0027) to a number, too. Hence the attacker can login with just a \u00270\u0027 or a simple number he has to brute force. Strong comparison with \u0027===\u0027 prevents the cast into numbers.",
  "id": "GHSA-pm5v-j6jx-wmr3",
  "modified": "2022-05-14T03:19:26Z",
  "published": "2022-05-14T03:19:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10362"
    },
    {
      "type": "WEB",
      "url": "https://github.com/phpLiteAdmin/pla/issues/11"
    },
    {
      "type": "WEB",
      "url": "http://k3research.outerhaven.de/posts/small-mistakes-lead-to-big-problems.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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