cnvd - cnvd-2022-06879

cnvd-2022-06879

Vulnerability from cnvd

Title: Avast Antivirus权限提升漏洞（CNVD-2022-06879）

Description:

Avast Antivirus是捷克爱维士（Avast）公司的一套杀毒软件。

Avast Antivirus 20.8之前版本的Self-Defense驱动程序存在权限提升漏洞。攻击者可利用该漏洞通过“挖空”进程wsc_proxy.exe来获得提升的权限，导致获得反恶意软件(AM-PPL)保护。

Severity: 高

Patch Name: Avast Antivirus权限提升漏洞（CNVD-2022-06879）的补丁

Patch Description:

Avast Antivirus是捷克爱维士（Avast）公司的一套杀毒软件。

Avast Antivirus 20.8之前版本的Self-Defense驱动程序存在权限提升漏洞。攻击者可利用该漏洞通过“挖空”进程wsc_proxy.exe来获得提升的权限，导致获得反恶意软件(AM-PPL)保护。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-45337

Impacted products

Name
Avast Antivirus <20.8

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-45337",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-45337"
    }
  },
  "description": "Avast Antivirus\u662f\u6377\u514b\u7231\u7ef4\u58eb\uff08Avast\uff09\u516c\u53f8\u7684\u4e00\u5957\u6740\u6bd2\u8f6f\u4ef6\u3002\n\nAvast Antivirus 20.8\u4e4b\u524d\u7248\u672c\u7684Self-Defense\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u201c\u6316\u7a7a\u201d\u8fdb\u7a0bwsc_proxy.exe\u6765\u83b7\u5f97\u63d0\u5347\u7684\u6743\u9650\uff0c\u5bfc\u81f4\u83b7\u5f97\u53cd\u6076\u610f\u8f6f\u4ef6(AM-PPL)\u4fdd\u62a4\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-06879",
  "openTime": "2022-01-26",
  "patchDescription": "Avast Antivirus\u662f\u6377\u514b\u7231\u7ef4\u58eb\uff08Avast\uff09\u516c\u53f8\u7684\u4e00\u5957\u6740\u6bd2\u8f6f\u4ef6\u3002\r\n\r\nAvast Antivirus 20.8\u4e4b\u524d\u7248\u672c\u7684Self-Defense\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u201c\u6316\u7a7a\u201d\u8fdb\u7a0bwsc_proxy.exe\u6765\u83b7\u5f97\u63d0\u5347\u7684\u6743\u9650\uff0c\u5bfc\u81f4\u83b7\u5f97\u53cd\u6076\u610f\u8f6f\u4ef6(AM-PPL)\u4fdd\u62a4\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\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2022-06879\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Avast Antivirus \u003c20.8"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-45337",
  "serverity": "\u9ad8",
  "submitTime": "2021-12-29",
  "title": "Avast Antivirus\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2022-06879\uff09"
}

CVE-2021-45337 (GCVE-0-2021-45337)

Vulnerability from cvelistv5

Published

2021-12-27 12:44

Modified

2024-08-04 04:39

Severity ?

CWE

Summary

Privilege escalation vulnerability in the Self-Defense driver of Avast Antivirus prior to 20.8 allows a local user with SYSTEM privileges to gain elevated privileges by "hollowing" process wsc_proxy.exe which could lead to acquire antimalware (AM-PPL) protection.

References

▼	URL	Tags
	https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0	x_refsource_MISC
	https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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            "url": "https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5"
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        },
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          "url": "https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5"
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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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