Vulnerability-Lookup

GHSA-4C7M-WXVM-R7GC

Vulnerability from github – Published: 2021-04-14 15:03 – Updated: 2022-04-01 20:21

Summary

Improper parsing of octal bytes in netmask

Details

Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.

:exclamation: NOTE: The fix for this issue was incomplete. A subsequent fix was made in version 2.0.1 which was assigned CVE-2021-29418 / GHSA-pch5-whg9-qr2r. For complete protection from this vulnerability an upgrade to version 2.0.1 or later is recommended.

Severity

9.1 (Critical)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "netmask"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-28918"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-13T16:13:23Z",
    "nvd_published_at": "2021-04-01T13:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.\n\n:exclamation: NOTE: The fix for this issue was incomplete. A subsequent fix was made in version `2.0.1` which was assigned [CVE-2021-29418 / GHSA-pch5-whg9-qr2r](https://github.com/advisories/GHSA-pch5-whg9-qr2r). For complete protection from this vulnerability an upgrade to version 2.0.1 or later is recommended.",
  "id": "GHSA-4c7m-wxvm-r7gc",
  "modified": "2022-04-01T20:21:55Z",
  "published": "2021-04-14T15:03:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28918"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-pch5-whg9-qr2r"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rs/node-netmask"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rs/node-netmask/blob/98294cb20695f2c6c36219a4fbcd4744fb8d0682/CHANGELOG.md#v110-mar-18-2021"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-011.md"
    },
    {
      "type": "WEB",
      "url": "https://rootdaemon.com/2021/03/29/vulnerability-in-netmask-npm-package-affects-280000-projects"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210528-0010"
    },
    {
      "type": "WEB",
      "url": "https://www.bleepingcomputer.com/news/security/critical-netmask-networking-bug-impacts-thousands-of-applications"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/netmask"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper parsing of octal bytes in netmask"
}

CVE-2021-28918 (GCVE-0-2021-28918)

Vulnerability from cvelistv5 – Published: 2021-04-01 12:33 – Updated: 2024-08-03 21:55

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://www.npmjs.com/package/netmask	x_refsource_MISC
https://github.com/rs/node-netmask	x_refsource_MISC
https://www.bleepingcomputer.com/news/security/cr…	x_refsource_MISC
https://github.com/advisories/GHSA-pch5-whg9-qr2r	x_refsource_MISC
https://github.com/sickcodes/security/blob/master…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021052…	x_refsource_CONFIRM
https://rootdaemon.com/2021/03/29/vulnerability-i…	x_refsource_MISC

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JSON

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          "dateUpdated": "2024-08-03T21:55:11.828Z",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.npmjs.com/package/netmask"
          },
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            "url": "https://github.com/rs/node-netmask"
          },
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            ],
            "url": "https://www.bleepingcomputer.com/news/security/critical-netmask-networking-bug-impacts-thousands-of-applications/"
          },
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              "x_refsource_MISC",
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            ],
            "url": "https://rootdaemon.com/2021/03/29/vulnerability-in-netmask-npm-package-affects-280000-projects/"
          }
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        "affects": {
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                "product": {
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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.

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.