ghsa-hjhr-r3gq-qvp6
Vulnerability from github
Published
2019-02-18 23:39
Modified
2020-08-31 18:10
Summary
Timing Attack in csrf-lite
Details

Affected versions of csrf-lite are vulnerable to timing attacks as a result of testing CSRF tokens via a fail-early comparison instead of a constant-time comparison.

Timing attacks remove the exponential increase in entropy gained from increased secret length, by providing per-character feedback on the correctness of a guess via miniscule timing differences.

Under favorable network conditions, an attacker can exploit this to guess the secret in no more than (16*18)288 guesses, instead of the 16^18 guesses required were the timing attack not present.

Recommendation

Update to version 0.1.2 or later.

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "csrf-lite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-10535"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-208"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:40:36Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Affected versions of `csrf-lite` are vulnerable to timing attacks as a result of testing CSRF tokens via a fail-early comparison instead of a constant-time comparison. \n\nTiming attacks remove the exponential increase in entropy gained from increased secret length, by providing per-character feedback on the correctness of a guess via miniscule timing differences.\n\nUnder favorable network conditions, an attacker can exploit this to guess the secret in no more than (16*18)288 guesses, instead of the 16^18 guesses required were the timing attack not present. \n\n\n## Recommendation\n\nUpdate to version 0.1.2 or later.",
  "id": "GHSA-hjhr-r3gq-qvp6",
  "modified": "2020-08-31T18:10:37Z",
  "published": "2019-02-18T23:39:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10535"
    },
    {
      "type": "WEB",
      "url": "https://github.com/isaacs/csrf-lite/pull/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hjhr-r3gq-qvp6"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/94"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Timing Attack in csrf-lite"
}


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