gsd-2015-3900
Vulnerability from gsd
Modified
2015-05-14 00:00
Details
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack." A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain.
Aliases
Aliases
CVE-2015-3900


To clipboard 

{
  "GSD": {
    "alias": "CVE-2015-3900",
    "description": "RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a \"DNS hijack attack.\"",
    "id": "GSD-2015-3900",
    "references": [
      "https://www.suse.com/security/cve/CVE-2015-3900.html",
      "https://access.redhat.com/errata/RHSA-2015:1657",
      "https://advisories.mageia.org/CVE-2015-3900.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2015-3900.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rubygems-update",
            "purl": "pkg:gem/rubygems-update"
          }
        }
      ],
      "aliases": [
        "CVE-2015-3900",
        "OSVDB-122162",
        "GHSA-wp3j-rvfp-624h"
      ],
      "details": "RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a \"DNS hijack attack.\" A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain.",
      "id": "GSD-2015-3900",
      "modified": "2015-05-14T00:00:00.000Z",
      "published": "2015-05-14T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-007/?fid=6356"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.0,
          "type": "CVSS_V2"
        }
      ],
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    }
  },
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      "description": "RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a \"DNS hijack attack.\" A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain.",
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        "~\u003e 2.2.4",
        "\u003e= 2.4.7"
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      "title": "CVE-2015-3900 rubygems: DNS hijacking vulnerability in api_endpoint()",
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          "cwe_ids": [
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            "CWE-937"
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          "date": "2019-04-22",
          "description": "RubyGems does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a \"DNS hijack attack.\"",
          "fixed_versions": [
            "2.4.7"
          ],
          "identifier": "CVE-2015-3900",
          "identifiers": [
            "CVE-2015-3900"
          ],
          "not_impacted": "All versions starting from 2.4.7",
          "package_slug": "gem/rubygems-update",
          "pubdate": "2015-06-24",
          "solution": "Upgrade to version 2.4.7 or above.",
          "title": "7PK - Security Features",
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
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          "exploitabilityScore": 10.0,
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          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2019-04-22T17:48Z",
      "publishedDate": "2015-06-24T14:59Z"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.