jvndb - jvndb-2025-000025

JVNDB-2025-000025

Vulnerability from jvndb - Published: 2025-04-03 12:29 - Updated:2025-04-03 12:29

Severity ?

6.8 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Summary

WinRAR vulnerable to the symbolic link based "Mark of the Web" check bypass

Details

WinRAR provided by RARLAB contains a vulnerability that bypasses the "Mark of the Web" (CWE-356) security warning function for files when opening a symbolic link that points to an executable file. In the initial Windows configuration, only administrators have the privilege to create symbolic links. Taihei Shimamine of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN59547048/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-31334
	Product UI does not Warn User of Unsafe Actions(CWE-356)	https://cwe.mitre.org/data/definitions/356.html

Impacted products

Vendor

Product

RARLAB

WinRAR

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000025.html",
  "dc:date": "2025-04-03T12:29+09:00",
  "dcterms:issued": "2025-04-03T12:29+09:00",
  "dcterms:modified": "2025-04-03T12:29+09:00",
  "description": "WinRAR provided by RARLAB contains a vulnerability that bypasses the \"Mark of the Web\" (CWE-356) security warning function for files when opening a symbolic link that points to an executable file.\r\nIn the initial Windows configuration, only administrators have the privilege to create symbolic links.\r\n\r\nTaihei Shimamine of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000025.html",
  "sec:cpe": {
    "#text": "cpe:/a:rarlab:winrar",
    "@product": "WinRAR",
    "@vendor": "RARLAB",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "6.8",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2025-000025",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN59547048/index.html",
      "@id": "JVN#59547048",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-31334",
      "@id": "CVE-2025-31334",
      "@source": "CVE"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/356.html",
      "@id": "CWE-356",
      "@title": "Product UI does not Warn User of Unsafe Actions(CWE-356)"
    }
  ],
  "title": "WinRAR vulnerable to the symbolic link based \"Mark of the Web\" check bypass"
}

CVE-2025-31334 (GCVE-0-2025-31334)

Vulnerability from cvelistv5 – Published: 2025-04-03 05:27 – Updated: 2025-04-03 13:52

Summary

Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. If a symbolic link specially crafted by an attacker is opened on the affected product, arbitrary code may be executed.

Severity ?

6.8 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-356 - Product UI does not warn user of unsafe actions

Assigner

jpcert

References

URL

Tags

	https://www.win-rar.com/start.html?&L=0
	https://jvn.jp/en/jp/JVN59547048/

Impacted products

	Vendor	Product	Version
	RARLAB	WinRAR	Affected: prior to 7.11

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-31334",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-03T13:51:57.341675Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-03T13:52:45.659Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WinRAR",
          "vendor": "RARLAB",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 7.11"
            }
          ]
        }
      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "Product UI does not warn user of unsafe actions",
              "lang": "en-US",
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      "providerMetadata": {
        "dateUpdated": "2025-04-03T05:27:32.538Z",
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      "references": [
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        },
        {
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  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
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    "datePublished": "2025-04-03T05:27:32.538Z",
    "dateReserved": "2025-03-27T23:41:26.316Z",
    "dateUpdated": "2025-04-03T13:52:45.659Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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

JVNDB-2025-000025

CVE-2025-31334 (GCVE-0-2025-31334)

Tags

Sightings

Nomenclature