github - ghsa-75r7-wf67-87f9

GHSA-75R7-WF67-87F9

Vulnerability from github – Published: 2024-06-10 18:31 – Updated: 2024-06-12 18:30

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.

Severity ?

7.0 (High)


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

Show details on source website

JSON

To clipboard

{
  "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 (GCVE-0-2024-5102)

Vulnerability from cvelistv5 – Published: 2024-06-10 16:15 – Updated: 2024-08-01 21:03

Summary

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

CWE

CWE-1284 - Improper Validation of Specified Quantity in Input

Assigner

NLOK

References

URL

Tags

https://support.norton.com/sp/static/external/too…

Impacted products

	Vendor	Product	Version
	Avast	Antivirus	Affected: 24.2 (custom)

Credits

Naor Hodorov

Show details on NVD website

JSON

To clipboard

{
  "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": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "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"
            }
          ],
          "value": "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "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": [
            {
              "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": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "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 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-75R7-WF67-87F9

CVE-2024-5102 (GCVE-0-2024-5102)

Tags

Sightings

Nomenclature