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CVE-2019-3685— Missing TLS certificate validation for HTTPS connections in osc

Quick assessment

Affected
Open Build Service Open Build Service
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.

Open Build Service（OBS）是Open Build Service组织的一套通用的、以自动、一致和可重复的方式从源代码构建和分发软件包的系统。 Open Build Service 0.165.4之前版本中存在信任管理问题漏洞。该漏洞源于没有使用osc客户端二进制文件验证HTTPS连接的TLS证书。

CVSS 7.4 · High EPSS 0.71% · P51
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I. Basic Information for CVE-2019-3685

Vulnerability Information
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Vulnerability Title
Missing TLS certificate validation for HTTPS connections in osc
Source: CVE Program / CVE List V5
Vulnerability Description
Open Build Service before version 0.165.4 diddn't validate TLS certificates for HTTPS connections with the osc client binary
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Open Build Service 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Build Service（OBS）是Open Build Service组织的一套通用的、以自动、一致和可重复的方式从源代码构建和分发软件包的系统。 Open Build Service 0.165.4之前版本中存在信任管理问题漏洞。该漏洞源于没有使用osc客户端二进制文件验证HTTPS连接的TLS证书。
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
Open Build Service Open Build Service unspecified ~ 0.165.4 -

II. Public POCs for CVE-2019-3685

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III. Intelligence Information for CVE-2019-3685

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Vendor Advisories for CVE-2019-3685 (1)

IV. Related Vulnerabilities

Same product: Open Build Service
Same weakness: CWE-295

V. Comments for CVE-2019-3685

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