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I. Basic Information for CVE-2020-8289
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Backblaze 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Backblaze是美国Backblaze公司的一款云端备份服务。 Backblaze for Windows 7.0.1.433之前版本 and Backblaze for macOS 7.0.1.434之前版本存在信任管理问题漏洞，该漏洞源于 bztransmit helper中遭受不适当的证书验证，这是由于url中字符串的硬编码白名单被禁用，导致可能通过客户端更新功能远程执行代码。
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
VendorProductAffected VersionsCPESubscribe
-Backblaze Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 -
II. Public POCs for CVE-2020-8289
#POC DescriptionSource LinkShenlong Link
1CVE-2020-8289 – Remote Code Execution as SYSTEM/root via Backblazehttps://github.com/geffner/CVE-2020-8289POC Details
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III. Intelligence Information for CVE-2020-8289
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New Vulnerabilities
Product: Backblaze
Vendor: n/a
Same weakness: CWE-295
V. Comments for CVE-2020-8289

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