GHSA-4GPM-R23H-GPRW

Vulnerability from github – Published: 2023-10-31 03:31 – Updated: 2023-11-08 18:41
VLAI?
Summary
generator-jhipster allows a timing attack against validateToken due to a string comparison that stops at the first character
Details

JHipster generator-jhipster before 2.23.0 allows a timing attack against validateToken due to a string comparison that stops at the first character that is different. Attackers can guess tokens by brute forcing one character at a time and observing the timing. This of course drastically reduces the search space to a linear amount of guesses based on the token length times the possible characters.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "generator-jhipster"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.23.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2015-20110"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-208",
      "CWE-307"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-31T19:30:57Z",
    "nvd_published_at": "2023-10-31T03:15:07Z",
    "severity": "HIGH"
  },
  "details": "JHipster generator-jhipster before 2.23.0 allows a timing attack against validateToken due to a string comparison that stops at the first character that is different. Attackers can guess tokens by brute forcing one character at a time and observing the timing. This of course drastically reduces the search space to a linear amount of guesses based on the token length times the possible characters.",
  "id": "GHSA-4gpm-r23h-gprw",
  "modified": "2023-11-08T18:41:14Z",
  "published": "2023-10-31T03:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-20110"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jhipster/generator-jhipster/issues/2095"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jhipster/generator-jhipster/commit/79fe5626cb1bb80f9ac86cf46980748e65d2bdbc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jhipster/generator-jhipster/commit/7c49ab3d45dc4921b831a2ca55fb1e2a2db1ee25"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jhipster/generator-jhipster"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jhipster/generator-jhipster/compare/v2.22.0...v2.23.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "generator-jhipster allows a timing attack against validateToken due to a string comparison that stops at the first character"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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