csaf_certbund - wid-sec-w-2022-2230

WID-SEC-W-2022-2230

Vulnerability from csaf_certbund - Published: 2022-12-05 23:00 - Updated: 2022-12-06 23:00

Summary

Avast und AVG Antivirus: Schwachstelle ermöglicht Privilegieneskalation

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Avast ist ein Antivirus Produkt von der Firma ALWIL Software.

Angriff

Ein lokaler Angreifer kann eine Schwachstelle in Avast und AVG Antivirus ausnutzen, um seine Privilegien zu erhöhen.

Betroffene Betriebssysteme

- Linux - MacOS X - Windows

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Avast ist ein Antivirus Produkt von der Firma ALWIL Software.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Avast und AVG Antivirus ausnutzen, um seine Privilegien zu erh\u00f6hen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- MacOS X\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2022-2230 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-2230.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-2230 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-2230"
      },
      {
        "category": "external",
        "summary": "Norton Security Advisory vom 2022-12-05",
        "url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Avast und AVG Antivirus: Schwachstelle erm\u00f6glicht Privilegieneskalation",
    "tracking": {
      "current_release_date": "2022-12-06T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:39:11.464+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2022-2230",
      "initial_release_date": "2022-12-05T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2022-12-05T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2022-12-06T23:00:00.000+00:00",
          "number": "2",
          "summary": "AVG Antivirus ebenfalls betroffen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "AVG Anti-Virus \u003c 22.10",
            "product": {
              "name": "AVG Anti-Virus \u003c 22.10",
              "product_id": "T025511",
              "product_identification_helper": {
                "cpe": "cpe:/a:avg:anti-virus:22.10"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "AVG"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Avast Antivirus \u003c 22.10",
            "product": {
              "name": "Avast Antivirus \u003c 22.10",
              "product_id": "T025498",
              "product_identification_helper": {
                "cpe": "cpe:/a:avast:avast_antivirus_free:22.10"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avast"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-4173",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Avast Antivirus. Der Fehler besteht in der Malware-Entfernungsfunktion. Ein lokaler Angreifer mit Schreibzugriff auf das Dateisystem kann diese Schwachstelle ausnutzen, um seine Privilegien zu erweitern. Eine erfolgreiche Ausnutzung erfordert eine Benutzerinteraktion."
        }
      ],
      "release_date": "2022-12-05T23:00:00.000+00:00",
      "title": "CVE-2022-4173"
    }
  ]
}

CVE-2022-4173 (GCVE-0-2022-4173)

Vulnerability from cvelistv5 – Published: 2022-12-05 23:15 – Updated: 2025-04-14 17:57

Summary

A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.

Severity ?

7.3 (High)


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

CWE

CWE-269 - Improper Privilege Management

Assigner

NLOK

References

URL

Tags

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

Impacted products

	Vendor	Product	Version
	NortonLifeLock	Avast and AVG Antivirus	Affected: 20.5 , ≤ 22.9 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T01:34:49.315Z",
          "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"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-4173",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-14T15:59:05.508957Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-14T17:57:04.339Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Avast and AVG Antivirus",
          "vendor": "NortonLifeLock",
          "versions": [
            {
              "lessThanOrEqual": "22.9",
              "status": "affected",
              "version": "20.5",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eA vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\n"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-05T23:15:33.724Z",
        "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": "Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e",
    "assignerShortName": "NLOK",
    "cveId": "CVE-2022-4173",
    "datePublished": "2022-12-05T23:15:33.724Z",
    "dateReserved": "2022-11-29T00:57:05.463Z",
    "dateUpdated": "2025-04-14T17:57:04.339Z",
    "requesterUserId": "a89eadfe-7713-4641-b4d7-9b7a3717e63f",
    "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

WID-SEC-W-2022-2230

CVE-2022-4173 (GCVE-0-2022-4173)

Tags

Sightings

Nomenclature