gsd-2020-8161
Vulnerability from gsd
Modified
2020-05-12 00:00
Details
There was a possible directory traversal vulnerability in the Rack::Directory app that is bundled with Rack. Versions Affected: rack < 2.2.0 Not affected: Applications that do not use Rack::Directory. Fixed Versions: 2.1.3, >= 2.2.0 Impact ------ If certain directories exist in a director that is managed by `Rack::Directory`, an attacker could, using this vulnerability, read the contents of files on the server that were outside of the root specified in the Rack::Directory initializer. Workarounds ----------- Until such time as the patch is applied or their Rack version is upgraded, we recommend that developers do not use Rack::Directory in their applications.
Aliases
Aliases
CVE-2020-8161


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-8161",
    "description": "A directory traversal vulnerability exists in rack \u003c 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.",
    "id": "GSD-2020-8161",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8161.html",
      "https://access.redhat.com/errata/RHSA-2020:4366",
      "https://ubuntu.com/security/CVE-2020-8161",
      "https://advisories.mageia.org/CVE-2020-8161.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rack",
            "purl": "pkg:gem/rack"
          }
        }
      ],
      "aliases": [
        "CVE-2020-8161",
        "GHSA-5f9h-9pjv-v6j7"
      ],
      "details": "There was a possible directory traversal vulnerability in the Rack::Directory app\nthat is bundled with Rack.\n\nVersions Affected:  rack \u003c 2.2.0\nNot affected:       Applications that do not use Rack::Directory.\nFixed Versions:     2.1.3, \u003e= 2.2.0\n\nImpact\n------\n\nIf certain directories exist in a director that is managed by\n`Rack::Directory`, an attacker could, using this vulnerability, read the\ncontents of files on the server that were outside of the root specified in the\nRack::Directory initializer.\n\nWorkarounds\n-----------\n\nUntil such time as the patch is applied or their Rack version is upgraded,\nwe recommend that developers do not use Rack::Directory in their\napplications.\n",
      "id": "GSD-2020-8161",
      "modified": "2020-05-12T00:00:00.000Z",
      "published": "2020-05-12T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://groups.google.com/forum/#!topic/ruby-security-ann/T4ZIsfRf2eA"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.6,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Directory traversal in Rack::Directory app bundled with Rack"
    }
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      "description": "There was a possible directory traversal vulnerability in the Rack::Directory app\nthat is bundled with Rack.\n\nVersions Affected:  rack \u003c 2.2.0\nNot affected:       Applications that do not use Rack::Directory.\nFixed Versions:     2.1.3, \u003e= 2.2.0\n\nImpact\n------\n\nIf certain directories exist in a director that is managed by\n`Rack::Directory`, an attacker could, using this vulnerability, read the\ncontents of files on the server that were outside of the root specified in the\nRack::Directory initializer.\n\nWorkarounds\n-----------\n\nUntil such time as the patch is applied or their Rack version is upgraded,\nwe recommend that developers do not use Rack::Directory in their\napplications.\n",
      "gem": "rack",
      "ghsa": "5f9h-9pjv-v6j7",
      "patched_versions": [
        "~\u003e 2.1.3",
        "\u003e= 2.2.0"
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      "title": "Directory traversal in Rack::Directory app bundled with Rack",
      "url": "https://groups.google.com/forum/#!topic/ruby-security-ann/T4ZIsfRf2eA"
    },
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          "cwe_ids": [
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            "CWE-937"
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          "date": "2020-10-05",
          "description": "A directory traversal vulnerability exists in rack that allows an attacker perform directory traversal vulnerability in the `Rack::Directory` app that is bundled with Rack which could result in information disclosure.",
          "fixed_versions": [
            "2.2.0"
          ],
          "identifier": "CVE-2020-8161",
          "identifiers": [
            "CVE-2020-8161"
          ],
          "not_impacted": "All versions starting from 2.2.0",
          "package_slug": "gem/rack",
          "pubdate": "2020-07-02",
          "solution": "Upgrade to version 2.2.0 or above.",
          "title": "Path Traversal",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8161"
          ],
          "uuid": "53834578-b5cb-4f46-9607-ce88978e7443"
        }
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 4.0
        }
      },
      "lastModifiedDate": "2023-02-02T19:20Z",
      "publishedDate": "2020-07-02T19:15Z"
    }
  }
}


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