github - GHSA-5x32-c9mf-49cc

GHSA-5x32-c9mf-49cc

Vulnerability from github

Published

2019-06-20 16:06

Modified

2023-08-28 13:16

Severity ?

7.4 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Summary

RubyGems Delete directory using symlink when decompressing tar

Details

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rubygems-update"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.7.6"
            },
            {
              "fixed": "2.7.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rubygems-update"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-8320"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-06-20T16:02:48Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user\u0027s machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.",
  "id": "GHSA-5x32-c9mf-49cc",
  "modified": "2023-08-28T13:16:23Z",
  "published": "2019-06-20T16:06:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8320"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/317321"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1429"
    },
    {
      "type": "WEB",
      "url": "https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rubygems/rubygems"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2019-8320.yml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RubyGems Delete directory using symlink when decompressing tar"
}

cve-2019-8320

Vulnerability from cvelistv5

Published

2019-06-06 14:50

Modified

2024-08-04 21:17

Severity ?

Summary

References

▼	URL	Tags
	https://hackerone.com/reports/317321	x_refsource_MISC
	https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2019:1429	vendor-advisory, x_refsource_REDHAT
	http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html	vendor-advisory, x_refsource_SUSE
	https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html	mailing-list, x_refsource_MLIST

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
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        ],
        "title": "CVE Program Container"
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    "dateReserved": "2019-02-13T00:00:00",
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    "state": "PUBLISHED"
  },
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}

gsd-2019-8320

Vulnerability from gsd

Modified

2019-03-05 00:00

Details

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user’s machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.

Aliases

CVE-2019-8320

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2019-8320",
    "description": "A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user\u0027s machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.",
    "id": "GSD-2019-8320",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-8320.html",
      "https://www.debian.org/security/2019/dsa-4433",
      "https://access.redhat.com/errata/RHBA-2019:3384",
      "https://access.redhat.com/errata/RHSA-2019:1429",
      "https://access.redhat.com/errata/RHSA-2019:1150",
      "https://access.redhat.com/errata/RHSA-2019:1148",
      "https://ubuntu.com/security/CVE-2019-8320",
      "https://advisories.mageia.org/CVE-2019-8320.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2019-8320.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-2019-8320",
        "GHSA-5x32-c9mf-49cc"
      ],
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      "id": "GSD-2019-8320",
      "modified": "2019-03-05T00:00:00.000Z",
      "published": "2019-03-05T00:00:00.000Z",
      "references": [
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          "type": "WEB",
          "url": "https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.4,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Delete directory using symlink when decompressing tar"
    }
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      "library": "rubygems",
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      "title": "Delete directory using symlink when decompressing tar",
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    },
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          "cwe_ids": [
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            "CWE-937"
          ],
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          "description": "A Directory Traversal issue was discovered in RubyGems. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user\u0027s machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (`/tmp`, `/usr`, etc.), this could likely lead to data loss or an unusable system.",
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          "package_slug": "gem/rubygems-update",
          "pubdate": "2019-06-06",
          "solution": "Upgrade to version 3.0.3 or above.",
          "title": "Path Traversal",
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 8.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 9.2,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2020-08-16T15:15Z",
      "publishedDate": "2019-06-06T15:29Z"
    }
  }
}

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.

Action not permitted

GHSA-5x32-c9mf-49cc

Vulnerability from github

cve-2019-8320

Vulnerability from cvelistv5

gsd-2019-8320

Vulnerability from gsd

Tags

Sightings

Nomenclature