Vulnerability-Lookup

WID-SEC-W-2024-1727

Vulnerability from csaf_certbund - Published: 2024-07-29 22:00 - Updated: 2024-07-29 22:00

Summary

Avast Antivirus: Mehrere Schwachstellen ermöglichen Privilegieneskalation und Denial of Service

Severity

Hoch

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.

Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen in Avast Antivirus ausnutzen, um seine Privilegien zu erhöhen und einen Denial-of-Service-Zustand zu erzeugen.

Betroffene Betriebssysteme: - Sonstiges - Windows

CVE-2024-7227

Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgemäßen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuführen.

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7232

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7233

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7234

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7237

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7228

Es bestehen mehrere Schwachstellen in Avast Antivirus, die AVG und den Avast-Dienst und das AVG-Installer aufgrund der unsachgemäßen Behandlung von symbolischen Links betreffen. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7235

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

CVE-2024-7236

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Avast Antivirus Avast	`cpe:/a:avast:avast_antivirus_free:-`	—

References

10 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external
https://www.zerodayinitiative.com/advisories/ZDI-…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann mehrere Schwachstellen in Avast Antivirus ausnutzen, um seine Privilegien zu erh\u00f6hen und einen Denial-of-Service-Zustand zu erzeugen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\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-2024-1727 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1727.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-1727 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1727"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1003/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1004/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1005/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1006/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1007/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1008/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1009/"
      },
      {
        "category": "external",
        "summary": "ZDI Advisory vom 2024-07-29",
        "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-999/"
      }
    ],
    "source_lang": "en-US",
    "title": "Avast Antivirus: Mehrere Schwachstellen erm\u00f6glichen Privilegieneskalation und Denial of Service",
    "tracking": {
      "current_release_date": "2024-07-29T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:11:49.310+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-1727",
      "initial_release_date": "2024-07-29T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-07-29T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Avast Antivirus",
            "product": {
              "name": "Avast Antivirus",
              "product_id": "T036498",
              "product_identification_helper": {
                "cpe": "cpe:/a:avast:avast_antivirus_free:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avast"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-7227",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgem\u00e4\u00dfen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7227"
    },
    {
      "cve": "CVE-2024-7232",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgem\u00e4\u00dfen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7232"
    },
    {
      "cve": "CVE-2024-7233",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgem\u00e4\u00dfen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7233"
    },
    {
      "cve": "CVE-2024-7234",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgem\u00e4\u00dfen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7234"
    },
    {
      "cve": "CVE-2024-7237",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus. Diese Fehler betreffen den Avast- und den AVG-Dienst aufgrund einer unsachgem\u00e4\u00dfen Behandlung von symbolischen Links. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Rechte zu erweitern und beliebigen Code mit administrativen Rechten auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7237"
    },
    {
      "cve": "CVE-2024-7228",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus, die AVG und den Avast-Dienst und das AVG-Installer aufgrund der unsachgem\u00e4\u00dfen Behandlung von symbolischen Links betreffen. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7228"
    },
    {
      "cve": "CVE-2024-7235",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus, die AVG und den Avast-Dienst und das AVG-Installer aufgrund der unsachgem\u00e4\u00dfen Behandlung von symbolischen Links betreffen. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7235"
    },
    {
      "cve": "CVE-2024-7236",
      "notes": [
        {
          "category": "description",
          "text": "Es bestehen mehrere Schwachstellen in Avast Antivirus, die AVG und den Avast-Dienst und das AVG-Installer aufgrund der unsachgem\u00e4\u00dfen Behandlung von symbolischen Links betreffen. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T036498"
        ]
      },
      "release_date": "2024-07-29T22:00:00.000+00:00",
      "title": "CVE-2024-7236"
    }
  ]
}

CVE-2024-7227 (GCVE-0-2024-7227)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:11 – Updated: 2024-11-25 16:55

Title

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability

Summary

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272.

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
Avast	Free Antivirus	Affected: 23.9.6082

Date Public

2024-07-29 21:36

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:avast:free_antivirus:23.9.6082:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "free_antivirus",
            "vendor": "avast",
            "versions": [
              {
                "status": "affected",
                "version": "23.9.6082"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-7227",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-25T16:10:17.673678Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-25T16:55:56.660Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Free Antivirus",
          "vendor": "Avast",
          "versions": [
            {
              "status": "affected",
              "version": "23.9.6082"
            }
          ]
        }
      ],
      "dateAssigned": "2024-07-29T20:22:38.069Z",
      "datePublic": "2024-07-29T21:36:47.293Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-22T21:11:51.625Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-24-1003",
          "tags": [
            "x_research-advisory"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1003/"
        }
      ],
      "source": {
        "lang": "en",
        "value": "Nicholas Zubrisky and Michael DePlante (@izobashi) of Trend Micro\u0027s Zero Day Initiative"
      },
      "title": "Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2024-7227",
    "datePublished": "2024-11-22T21:11:51.625Z",
    "dateReserved": "2024-07-29T20:22:38.024Z",
    "dateUpdated": "2024-11-25T16:55:56.660Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2024-7228 (GCVE-0-2024-7228)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:11 – Updated: 2024-11-23 01:26

Title

Avast Free Antivirus Link Following Denial-of-Service Vulnerability

Summary

Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806.

Severity

6.1 (Medium)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
Avast	Free Antivirus	Affected: 23.11.6090 Build 23.11.8365.809

Date Public

2024-07-29 21:36

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-7228",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-23T01:17:47.867142Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-23T01:26:25.282Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Free Antivirus",
          "vendor": "Avast",
          "versions": [
            {
              "status": "affected",
              "version": "23.11.6090 Build 23.11.8365.809"
            }
          ]
        }
      ],
      "dateAssigned": "2024-07-29T20:22:57.122Z",
      "datePublic": "2024-07-29T21:36:23.106Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-22T21:11:37.314Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-24-999",
          "tags": [
            "x_research-advisory"
          ],
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        "value": "Nicholas Zubrisky (@NZubrisky) and Michael DePlante (@izobashi) of Trend Micro\u0027s Zero Day Initiative"
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    "datePublished": "2024-11-22T21:11:37.314Z",
    "dateReserved": "2024-07-29T20:22:57.091Z",
    "dateUpdated": "2024-11-23T01:26:25.282Z",
    "state": "PUBLISHED"
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CVE-2024-7232 (GCVE-0-2024-7232)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:11 – Updated: 2024-11-25 16:56

Title

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability

Summary

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22963.

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
Avast	Free Antivirus	Affected: 23.12.6094 (build 23.12.8700.813)

Date Public

2024-07-29 21:36

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
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CVE-2024-7233 (GCVE-0-2024-7233)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:11 – Updated: 2024-11-25 16:54

Title

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability

Summary

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-23731.

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
Avast	Free Antivirus	Affected: 24.2.6105 (build 24.2.8918.827)

Date Public

2024-07-29 21:37

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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CVE-2024-7234 (GCVE-0-2024-7234)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:12 – Updated: 2024-12-05 14:29

Title

AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability

Summary

AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AVG Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22260.

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
AVG	AntiVirus Free	Affected: 23.9.8494.795

Date Public

2024-07-29 21:37

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:avg:anti-virus:23.9.8494.795:*:*:*:*:*:*:*"
            ],
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            "vendor": "avg",
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                "version": "23.9.8494.795"
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            ]
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CVE-2024-7235 (GCVE-0-2024-7235)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:12 – Updated: 2024-11-23 01:26

Title

AVG AntiVirus Free Link Following Denial-of-Service Vulnerability

Summary

AVG AntiVirus Free Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AVG Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-22803.

Severity

6.1 (Medium)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
AVG	AntiVirus Free	Affected: 23.11.8635.809

Date Public

2024-07-29 21:37

Show details on NVD website

JSON

To clipboard

{
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      {
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CVE-2024-7236 (GCVE-0-2024-7236)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:12 – Updated: 2024-11-23 01:26

Title

AVG AntiVirus Free icarus Arbitrary File Creation Denial of Service Vulnerability

Summary

AVG AntiVirus Free icarus Arbitrary File Creation Denial of Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AVG Installer. By creating a symbolic link, an attacker can abuse the update functionality to create a file. An attacker can leverage this vulnerability to create a persistent denial-of-service condition on the system. Was ZDI-CAN-22942.

Severity

5.3 (Medium)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
AVG	AntiVirus Free	Affected: 23.12.8700.812

Date Public

2024-07-29 21:37

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-23T01:17:42.185191Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-23T01:26:25.130Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "AntiVirus Free",
          "vendor": "AVG",
          "versions": [
            {
              "status": "affected",
              "version": "23.12.8700.812"
            }
          ]
        }
      ],
      "dateAssigned": "2024-07-29T20:26:49.669Z",
      "datePublic": "2024-07-29T21:37:26.199Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "AVG AntiVirus Free icarus Arbitrary File Creation Denial of Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the AVG Installer. By creating a symbolic link, an attacker can abuse the update functionality to create a file. An attacker can leverage this vulnerability to create a persistent denial-of-service condition on the system. Was ZDI-CAN-22942."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-22T21:12:14.028Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-24-1009",
          "tags": [
            "x_research-advisory"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1009/"
        }
      ],
      "source": {
        "lang": "en",
        "value": "Nicholas Zubrisky (@NZubrisky) and Michael DePlante (@izobashi) of Trend Micro\u0027s Zero Day Initiative"
      },
      "title": "AVG AntiVirus Free icarus Arbitrary File Creation Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2024-7236",
    "datePublished": "2024-11-22T21:12:14.028Z",
    "dateReserved": "2024-07-29T20:26:49.635Z",
    "dateUpdated": "2024-11-23T01:26:25.130Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2024-7237 (GCVE-0-2024-7237)

Vulnerability from cvelistv5 – Published: 2024-11-22 21:12 – Updated: 2024-12-05 14:30

Title

AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability

Summary

AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AVG Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22960.

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
AVG	AntiVirus Free	Affected: 23.12.8700.813

Date Public

2024-07-29 21:37

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:avg:anti-virus:23.12.8700.813:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "anti-virus",
            "vendor": "avg",
            "versions": [
              {
                "status": "affected",
                "version": "23.12.8700.813"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-7237",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-26T15:15:21.743547Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-05T14:30:46.210Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "AntiVirus Free",
          "vendor": "AVG",
          "versions": [
            {
              "status": "affected",
              "version": "23.12.8700.813"
            }
          ]
        }
      ],
      "dateAssigned": "2024-07-29T20:27:09.563Z",
      "datePublic": "2024-07-29T21:37:14.706Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the AVG Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22960."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-22T21:12:05.971Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-24-1007",
          "tags": [
            "x_research-advisory"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1007/"
        }
      ],
      "source": {
        "lang": "en",
        "value": "Nicholas Zubrisky (@NZubrisky) and Michael DePlante (@izobashi) of Trend Micro\u0027s Zero Day Initiative"
      },
      "title": "AVG AntiVirus Free AVGSvc Link Following Local Privilege Escalation Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2024-7237",
    "datePublished": "2024-11-22T21:12:05.971Z",
    "dateReserved": "2024-07-29T20:27:09.535Z",
    "dateUpdated": "2024-12-05T14:30:46.210Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

WID-SEC-W-2024-1727

CVE-2024-7227 (GCVE-0-2024-7227)

CVE-2024-7228 (GCVE-0-2024-7228)

CVE-2024-7232 (GCVE-0-2024-7232)

CVE-2024-7233 (GCVE-0-2024-7233)

CVE-2024-7234 (GCVE-0-2024-7234)

CVE-2024-7235 (GCVE-0-2024-7235)

CVE-2024-7236 (GCVE-0-2024-7236)

CVE-2024-7237 (GCVE-0-2024-7237)

Tags

Sightings

Nomenclature