cnvd - cnvd-2019-38495

CNVD-2019-38495

Vulnerability from cnvd - Published: 2019-11-01

Title

Avast antivirus和AVG antivirus DLL劫持漏洞

Description

Avast Antivirus是捷克爱维士（Avast）公司的一套杀毒软件。AVG AntiVirus是一款防病毒和反后门的杀毒软件。Avira Antivirus engine是德国小红伞（Avira）公司的一款杀毒引擎。 Avast antivirus和AVG antivirus存在DLL劫持漏洞，攻击者可利用该漏洞加载恶意DLL文件来绕过防御和提升特权。

Severity

中

Patch Name

Avast antivirus和AVG antivirus DLL劫持漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.avast.com

Reference

https://securityaffairs.co/wordpress/92882/hacking/dll-hijacking-issues-avast-avg-avira.html

Impacted products

Name
['Avast Antivirus <19.8', 'Avast AVG antivirus <19.8']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-17093"
    }
  },
  "description": "Avast Antivirus\u662f\u6377\u514b\u7231\u7ef4\u58eb\uff08Avast\uff09\u516c\u53f8\u7684\u4e00\u5957\u6740\u6bd2\u8f6f\u4ef6\u3002AVG AntiVirus\u662f\u4e00\u6b3e\u9632\u75c5\u6bd2\u548c\u53cd\u540e\u95e8\u7684\u6740\u6bd2\u8f6f\u4ef6\u3002Avira Antivirus engine\u662f\u5fb7\u56fd\u5c0f\u7ea2\u4f1e\uff08Avira\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u6740\u6bd2\u5f15\u64ce\u3002\n\nAvast antivirus\u548cAVG antivirus\u5b58\u5728DLL\u52ab\u6301\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u52a0\u8f7d\u6076\u610fDLL\u6587\u4ef6\u6765\u7ed5\u8fc7\u9632\u5fa1\u548c\u63d0\u5347\u7279\u6743\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.avast.com",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-38495",
  "openTime": "2019-11-01",
  "patchDescription": "Avast Antivirus\u662f\u6377\u514b\u7231\u7ef4\u58eb\uff08Avast\uff09\u516c\u53f8\u7684\u4e00\u5957\u6740\u6bd2\u8f6f\u4ef6\u3002AVG AntiVirus\u662f\u4e00\u6b3e\u9632\u75c5\u6bd2\u548c\u53cd\u540e\u95e8\u7684\u6740\u6bd2\u8f6f\u4ef6\u3002Avira Antivirus engine\u662f\u5fb7\u56fd\u5c0f\u7ea2\u4f1e\uff08Avira\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u6740\u6bd2\u5f15\u64ce\u3002\r\n\r\nAvast antivirus\u548cAVG antivirus\u5b58\u5728DLL\u52ab\u6301\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u52a0\u8f7d\u6076\u610fDLL\u6587\u4ef6\u6765\u7ed5\u8fc7\u9632\u5fa1\u548c\u63d0\u5347\u7279\u6743\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Avast antivirus\u548cAVG antivirus DLL\u52ab\u6301\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Avast Antivirus \u003c19.8",
      "Avast AVG antivirus \u003c19.8"
    ]
  },
  "referenceLink": "https://securityaffairs.co/wordpress/92882/hacking/dll-hijacking-issues-avast-avg-avira.html",
  "serverity": "\u4e2d",
  "submitTime": "2019-10-24",
  "title": "Avast antivirus\u548cAVG antivirus DLL\u52ab\u6301\u6f0f\u6d1e"
}

CVE-2019-17093 (GCVE-0-2019-17093)

Vulnerability from cvelistv5 – Published: 2019-10-23 16:59 – Updated: 2024-08-05 01:33

Summary

An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://safebreach.com/blog	x_refsource_MISC
	https://safebreach.com/Post/Avast-Antivirus-AVG-A…	x_refsource_MISC

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T01:33:16.465Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://safebreach.com/blog"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\\system32\\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-10-23T16:59:08",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://safebreach.com/blog"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-17093",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\\system32\\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
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              "name": "https://safebreach.com/blog",
              "refsource": "MISC",
              "url": "https://safebreach.com/blog"
            },
            {
              "name": "https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses",
              "refsource": "MISC",
              "url": "https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-17093",
    "datePublished": "2019-10-23T16:59:08",
    "dateReserved": "2019-10-02T00:00:00",
    "dateUpdated": "2024-08-05T01:33:16.465Z",
    "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

CNVD-2019-38495

CVE-2019-17093 (GCVE-0-2019-17093)

Tags

Sightings

Nomenclature