Vulnerability-Lookup

GHSA-HF54-FQ2M-P9V6

Vulnerability from github – Published: 2024-05-14 21:34 – Updated: 2024-05-14 22:32

Summary

dotmesh arbitrary file read and/or write

Details

Dotmesh is a git-like command-line interface for capturing, organizing and sharing application states. In versions 0.8.1 and prior, the unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. The routine untarFile attempts to guard against creating symbolic links that point outside the directory a tar archive is extracted to. However, a malicious tarball first linking subdir/parent to .. (allowed, because subdir/.. falls within the archive root) and then linking subdir/parent/escapes to .. results in a symbolic link pointing to the tarball’s parent directory, contrary to the routine’s goals. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, they may be able to read arbitrary system files the parent process has permissions to read. As of time of publication, no patch for this issue is available.

Severity

8.1 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/dotmesh-io/dotmesh"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26312"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-05-14T22:32:03Z",
    "nvd_published_at": "2024-05-14T21:15:10Z",
    "severity": "HIGH"
  },
  "details": "Dotmesh is a git-like command-line interface for capturing, organizing and sharing application states. In versions 0.8.1 and prior, the unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder.\u00a0The routine `untarFile` attempts to guard against creating symbolic links that point outside the directory a tar archive is extracted to. However, a malicious tarball first linking `subdir/parent` to `..` (allowed, because `subdir/..` falls within the archive root) and then linking `subdir/parent/escapes` to `..` results in a symbolic link pointing to the tarball\u2019s parent directory, contrary to the routine\u2019s goals. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, they may be able to read arbitrary system files the parent process has permissions to read. As of time of publication, no patch for this issue is available.\n",
  "id": "GHSA-hf54-fq2m-p9v6",
  "modified": "2024-05-14T22:32:03Z",
  "published": "2024-05-14T21:34:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26312"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotmesh-io/dotmesh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotmesh-io/dotmesh/blob/master/pkg/archiver/tar.go#L255"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2020-254-zipslip-dotmesh"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "dotmesh arbitrary file read and/or write"
}

CVE-2020-26312 (GCVE-0-2020-26312)

Vulnerability from cvelistv5 – Published: 2024-05-14 20:22 – Updated: 2024-08-04 15:56

Title

GHSL-2020-254: Arbitrary file read and/or write in dotmesh

Summary

Dotmesh is a git-like command-line interface for capturing, organizing and sharing application states. In versions 0.8.1 and prior, the unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. The routine `untarFile` attempts to guard against creating symbolic links that point outside the directory a tar archive is extracted to. However, a malicious tarball first linking `subdir/parent` to `..` (allowed, because `subdir/..` falls within the archive root) and then linking `subdir/parent/escapes` to `..` results in a symbolic link pointing to the tarball’s parent directory, contrary to the routine’s goals. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, they may be able to read arbitrary system files the parent process has permissions to read. As of time of publication, no patch for this issue is available.

Severity

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-787 - Out-of-bounds Write
CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

2 references

URL	Tags
https://securitylab.github.com/advisories/GHSL-20…
https://github.com/dotmesh-io/dotmesh/blob/master…

Impacted products

2 products

Vendor	Product	Version
dotmesh-io	dotmesh	Affected: 0 , ≤ 0.8.1 (custom)
dotmesh-io	dotmesh	Affected: 0 , ≤ 0.8.1 (custom) cpe:2.3:a:dotmesh-io:dotmesh::::::::

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:dotmesh-io:dotmesh:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "dotmesh",
            "vendor": "dotmesh-io",
            "versions": [
              {
                "lessThanOrEqual": "0.8.1",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-26312",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-15T15:03:53.759790Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-05T18:02:30.164Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:56:04.289Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://securitylab.github.com/advisories/GHSL-2020-254-zipslip-dotmesh/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/dotmesh-io/dotmesh/blob/master/pkg/archiver/tar.go#L255"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "dotmesh",
          "product": "dotmesh",
          "repo": "https://github.com/dotmesh-io/dotmesh",
          "vendor": "dotmesh-io",
          "versions": [
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              "lessThanOrEqual": "0.8.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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      ],
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          "supportingMedia": [
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            }
          ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
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        },
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-14T20:22:04.485Z",
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      "references": [
        {
          "url": "https://securitylab.github.com/advisories/GHSL-2020-254-zipslip-dotmesh/"
        },
        {
          "url": "https://github.com/dotmesh-io/dotmesh/blob/master/pkg/archiver/tar.go#L255"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GHSL-2020-254: Arbitrary file read and/or write in dotmesh",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "cveId": "CVE-2020-26312",
    "datePublished": "2024-05-14T20:22:04.485Z",
    "dateReserved": "2020-10-01T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
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}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HF54-FQ2M-P9V6

CVE-2020-26312 (GCVE-0-2020-26312)

Tags

Sightings

Nomenclature