CVE-2021-45337
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Avast antivirus是捷克爱维士（Avast）公司的一套杀毒软件。 Avast Antivirus Self-Defense driver 存在权限许可和访问控制问题漏洞，该漏洞源于 Self-Defense driver 中的权限提升漏洞允许具有系统权限的本地用户通过“空洞”进程 wsc_proxy.exe 获得提升的权限，这可能导致获得反恶意软件 (AM-PPL) 保护。
Possible ATT&CK Techniques 3 AI
T1055 · Process Injection T1055.012 · Process Hollowing T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-45337
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Avast Antivirus Self-Defense driver 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avast antivirus是捷克爱维士（Avast）公司的一套杀毒软件。 Avast Antivirus Self-Defense driver 存在权限许可和访问控制问题漏洞，该漏洞源于 Self-Defense driver 中的权限提升漏洞允许具有系统权限的本地用户通过“空洞”进程 wsc_proxy.exe 获得提升的权限，这可能导致获得反恶意软件 (AM-PPL) 保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-45337
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-45337 (2)
Same Patch Batch · n/a · 2021-12-27 · 27 CVEs total
| CVE-2021-45895 | Netgen Tags Bundle 跨站脚本漏洞 | |
| CVE-2021-45843 | glFusion CMS 跨站脚本漏洞 | |
| CVE-2021-45788 | MeterSphere SQL注入漏洞 | |
| CVE-2021-45789 | MeterSphere 安全漏洞 | |
| CVE-2021-45790 | MeterSphere 代码问题漏洞 | |
| CVE-2021-45335 | Avast Antivirus 安全漏洞 | |
| CVE-2021-45336 | Avast Antivirus Sandbox component 权限许可和访问控制问题漏洞 | |
| CVE-2021-45338 | Avast antivirus 安全漏洞 | |
| CVE-2021-45339 | Avast antivirus 安全漏洞 | |
| CVE-2021-23244 | OPPO ColorOS 安全漏洞 | |
| CVE-2021-21751 | ZTE BigVideo Analysis product 输入验证错误漏洞 | |
| CVE-2021-21750 | ZTE Big Video Analysis Product 权限许可和访问控制问题漏洞 | |
| CVE-2021-45890 | AuthGuard 授权问题漏洞 | |
| CVE-2021-45904 | OpenWrt 跨站脚本漏洞 | |
| CVE-2020-20943 | Qibosoft qibosoft 跨站请求伪造漏洞 | |
| CVE-2020-20945 | Qibosoft 跨站请求伪造漏洞 | |
| CVE-2020-20944 | Qibosoft qibosoft 路径遍历漏洞 | |
| CVE-2020-20946 | Qibosoft 跨站脚本漏洞 | |
| CVE-2020-20948 | jeecg 访问控制错误漏洞 | |
| CVE-2021-45896 | Nokia FastMile 3TG00118ABAD52 安全漏洞 |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-45337
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