github - ghsa-75r7-wf67-87f9

ghsa-75r7-wf67-87f9

Vulnerability from github

Published

2024-06-10 18:31

Modified

2024-06-12 18:30

Severity ?

7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.

This issue affects Avast Antivirus prior to 24.2.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-5102"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1284",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-10T17:16:34Z",
    "severity": "HIGH"
  },
  "details": "A sym-linked file accessed via the repair function in Avast Antivirus \u003c24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\\SYSTEM.\u00a0The vulnerability exists within the \"Repair\" (settings -\u003e troubleshooting -\u003e repair) feature, which attempts to delete a file in the current user\u0027s AppData directory as NT AUTHORITY\\SYSTEM. A\u00a0low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.\n\nThis issue affects Avast Antivirus prior to 24.2.",
  "id": "GHSA-75r7-wf67-87f9",
  "modified": "2024-06-12T18:30:40Z",
  "published": "2024-06-10T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5102"
    },
    {
      "type": "WEB",
      "url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-5102

Vulnerability from cvelistv5

Published

2024-06-10 16:15

Modified

2024-08-01 21:03

Severity ?

7.3 (High) - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Summary

Elevation of Privelage via symlinked file in Avast Antivirus

References

▼	URL	Tags
	https://support.norton.com/sp/static/external/tools/security-advisories.html

Impacted products

▼	Vendor	Product
	Avast	Antivirus

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-5102",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-11T20:42:23.759818Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-11T20:42:36.851Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T21:03:10.574Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Antivirus",
          "vendor": "Avast",
          "versions": [
            {
              "status": "affected",
              "version": "24.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Naor Hodorov"
        }
      ],
      "datePublic": "2024-06-10T16:15:00.000Z",
      "descriptions": [
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              "type": "text/html",
              "value": "A sym-linked file accessed via the repair function in Avast Antivirus \u0026lt;24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\\SYSTEM.\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eThe vulnerability exists within the \"Repair\" (settings -\u0026gt; troubleshooting -\u0026gt; repair) feature, which attempts to delete a file in the current user\u0027s AppData directory as NT AUTHORITY\\SYSTEM. A\u003c/span\u003e\u0026nbsp;low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eThis issue affects Avast Antivirus prior to 24.2.\u003cbr\u003e\u003c/span\u003e\u003cbr\u003e"
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          ],
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      "impacts": [
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          "capecId": "CAPEC-233",
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            {
              "lang": "en",
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      ],
      "metrics": [
        {
          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-1284",
              "description": "CWE-1284 Improper Validation of Specified Quantity in Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-10T16:48:40.652Z",
        "orgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e",
        "shortName": "NLOK"
      },
      "references": [
        {
          "url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Elevation of Privelage via symlinked file in Avast Antivirus",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e",
    "assignerShortName": "NLOK",
    "cveId": "CVE-2024-5102",
    "datePublished": "2024-06-10T16:15:56.581Z",
    "dateReserved": "2024-05-18T20:11:06.500Z",
    "dateUpdated": "2024-08-01T21:03:10.574Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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