GSD-2016-2513

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
The password hasher in contrib/auth/hashers.py in Django before 1.8.10 and 1.9.x before 1.9.3 allows remote attackers to enumerate users via a timing attack involving login requests.
Aliases
Aliases
CVE-2016-2513
To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-2513",
    "description": "The password hasher in contrib/auth/hashers.py in Django before 1.8.10 and 1.9.x before 1.9.3 allows remote attackers to enumerate users via a timing attack involving login requests.",
    "id": "GSD-2016-2513",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-2513.html",
      "https://www.debian.org/security/2016/dsa-3544",
      "https://access.redhat.com/errata/RHSA-2016:0506",
      "https://access.redhat.com/errata/RHSA-2016:0505",
      "https://access.redhat.com/errata/RHSA-2016:0504",
      "https://access.redhat.com/errata/RHSA-2016:0503",
      "https://access.redhat.com/errata/RHSA-2016:0502",
      "https://ubuntu.com/security/CVE-2016-2513",
      "https://advisories.mageia.org/CVE-2016-2513.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2016-2513",
      "modified": "2023-12-13T01:21:19.840365Z",
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    }
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        {
          "affected_range": "\u003e=1.8.0a,\u003c1.8.10||\u003e=1.9.0a,\u003c1.9.3",
          "affected_versions": "All versions starting from 1.8.0a before 1.8.10, all versions starting from 1.9.0a before 1.9.3",
          "credit": "Sjoerd Job Postmus",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-200",
            "CWE-937"
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          "date": "2017-09-07",
          "description": "In each major version of Django since, the default number of iterations for the PBKDF2PasswordHasher and its subclasses has increased. This improves the security of the password as the speed of hardware increases, however, it also creates a timing difference between a login request for a user with a password encoded in an older number of iterations and login request for a nonexistent user (which runs the default hasher\u0027s default number of iterations since Django ). This only affects users who haven\u0027t logged in since the iterations were increased. The first time a user logs in after an iterations increase, their password is updated with the new iterations and there is no longer a timing difference.",
          "fixed_versions": [
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            "1.9.3"
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          "identifier": "CVE-2016-2513",
          "identifiers": [
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          "package_slug": "pypi/Django",
          "pubdate": "2016-04-08",
          "solution": "Upgrade to latest or apply patches. See provided link.",
          "title": "User enumeration through timing difference on password hasher work factor upgrade",
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      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.0"
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          "exploitabilityScore": 1.6,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2017-09-08T01:29Z",
      "publishedDate": "2016-04-08T15:59Z"
    }
  }
}


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