Vulnerability-Lookup

GHSA-8GG6-3R63-25M8

Vulnerability from github – Published: 2018-08-15 20:03 – Updated: 2023-08-29 12:09

Summary

git-fastclone permits arbitrary shell command execution from .gitmodules

Details

git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules. If an attacker can instruct a user to run a recursive clone from a repository they control, they can get a client to run an arbitrary shell command. Alternately, if an attacker can MITM an unencrypted git clone, they could exploit this. The ext command will be run if the repository is recursively cloned or if submodules are updated. This attack works when cloning both local and remote repositories.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "git-fastclone"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2015-8968"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-77"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:25:37Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules. If an attacker can instruct a user to run a recursive clone from a repository they control, they can get a client to run an arbitrary shell command. Alternately, if an attacker can MITM an unencrypted git clone, they could exploit this. The ext command will be run if the repository is recursively cloned or if submodules are updated. This attack works when cloning both local and remote repositories.",
  "id": "GHSA-8gg6-3r63-25m8",
  "modified": "2023-08-29T12:09:29Z",
  "published": "2018-08-15T20:03:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8968"
    },
    {
      "type": "WEB",
      "url": "https://github.com/square/git-fastclone/pull/2"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/104465"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/git-fastclone/CVE-2015-8968.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/square/git-fastclone"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200227213019/http://www.securityfocus.com/bid/81433"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "git-fastclone permits arbitrary shell command execution from .gitmodules"
}

CVE-2015-8968 (GCVE-0-2015-8968)

Vulnerability from cvelistv5 – Published: 2016-11-03 10:00 – Updated: 2024-08-06 08:36

Summary

Severity

No CVSS data available.

CWE

Arbitrary Command Execution

Assigner

hackerone mitre root Scorecard

References

3 references

URL	Tags
https://hackerone.com/reports/104465	x_refsource_MISC
http://www.securityfocus.com/bid/81433	vdb-entryx_refsource_BID
https://github.com/square/git-fastclone/pull/2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	git-fastclone ruby gem All versions before 1.0.1	Affected: git-fastclone ruby gem All versions before 1.0.1

Date Public

2016-11-03 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/square/git-fastclone/pull/2"
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              "name": "81433",
              "refsource": "BID",
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    "datePublished": "2016-11-03T10:00:00.000Z",
    "dateReserved": "2016-11-02T00:00:00.000Z",
    "dateUpdated": "2024-08-06T08:36:30.547Z",
    "state": "PUBLISHED"
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GSD-2015-8968

Vulnerability from gsd - Updated: 2015-12-11 00:00

Details

Git allows executing arbitrary shell commands using git-remote-ext via a remote URLs. Normally git never requests URLs that the user doesn't specifically request, so this is not a serious security concern. However, submodules did allow the remote repository to specify what URL to clone from. If an attacker can instruct a user to run a recursive clone from a repository they control, they can get a client to run an arbitrary shell command. Alternately, if an attacker can MITM an unencrypted git clone, they could exploit this. The ext command will be run if the repository is recursively cloned or if submodules are updated. This attack works when cloning both local and remote repositories.

Aliases

CVE-2015-8968

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2015-8968",
    "description": "git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules. If an attacker can instruct a user to run a recursive clone from a repository they control, they can get a client to run an arbitrary shell command. Alternately, if an attacker can MITM an unencrypted git clone, they could exploit this. The ext command will be run if the repository is recursively cloned or if submodules are updated. This attack works when cloning both local and remote repositories.",
    "id": "GSD-2015-8968"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "git-fastclone",
            "purl": "pkg:gem/git-fastclone"
          }
        }
      ],
      "aliases": [
        "CVE-2015-8968",
        "GHSA-8gg6-3r63-25m8"
      ],
      "details": "Git allows executing arbitrary shell commands using git-remote-ext via a\nremote URLs. Normally git never requests URLs that the user doesn\u0027t\nspecifically request, so this is not a serious security concern. However,\nsubmodules did allow the remote repository to specify what URL to clone\nfrom.\n\nIf an attacker can instruct a user to run a recursive clone from a\nrepository they control, they can get a client to run an arbitrary shell\ncommand. Alternately, if an attacker can MITM an unencrypted git clone,\nthey could exploit this. The ext command will be run if the repository is\nrecursively cloned or if submodules are updated. This attack works when\ncloning both local and remote repositories.\n",
      "id": "GSD-2015-8968",
      "modified": "2015-12-11T00:00:00.000Z",
      "published": "2015-12-11T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://hackerone.com/reports/104465"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "git-fastclone permits arbitrary shell command execution from .gitmodules"
    }
  },
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      "gem": "git-fastclone",
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    },
    "gitlab.com": {
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        {
          "affected_range": "\u003c1.0.1",
          "affected_versions": "All versions before 1.0.1",
          "credit": "Blake Burkhart",
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          ],
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          "package_slug": "gem/git-fastclone",
          "pubdate": "2016-11-03",
          "solution": "Upgrade to version 1.0.1 or above.",
          "title": "Arbitrary shell command execution from .gitmodules",
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        }
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                "vulnerable": true
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            "baseScore": 9.3,
            "confidentialityImpact": "COMPLETE",
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            "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
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          "exploitabilityScore": 8.6,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-06-10T13:24Z",
      "publishedDate": "2016-11-03T10:59Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-8GG6-3R63-25M8

CVE-2015-8968 (GCVE-0-2015-8968)

GSD-2015-8968

Tags

Sightings

Nomenclature

Related by attack behaviour