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CVE-2019-3785— Cloud Controller provides signed URL with write authorization to read only user

Quick assessment

Affected
Cloud Foundry CAPI
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.

Cloud Foundry是美国Cloud Foundry基金会的一套开源的平台即服务（PaaS）云计算平台。该产品提供容器调度、持续交付和自动化服务部署等功能。Cloud Controller是其中的一款云控制器。 Cloud Foundry Cloud Controller 1.78.0之前版本中存在安全漏洞。远程攻击者可利用该漏洞获取已签名的bit-service URL，进而对bit-service执行写入操作。

AI Predicted 7.8 Difficulty: Easy EPSS 1.27% · P70
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I. Basic Information for CVE-2019-3785

Vulnerability Information
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Vulnerability Title
Cloud Controller provides signed URL with write authorization to read only user
Source: CVE Program / CVE List V5
Vulnerability Description
Cloud Foundry Cloud Controller, versions prior to 1.78.0, contain an endpoint with improper authorization. A remote authenticated malicious user with read permissions can request package information and receive a signed bit-service url that grants the user write permissions to the bit-service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cloud Foundry Cloud Controller 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloud Foundry是美国Cloud Foundry基金会的一套开源的平台即服务（PaaS）云计算平台。该产品提供容器调度、持续交付和自动化服务部署等功能。Cloud Controller是其中的一款云控制器。 Cloud Foundry Cloud Controller 1.78.0之前版本中存在安全漏洞。远程攻击者可利用该漏洞获取已签名的bit-service URL，进而对bit-service执行写入操作。
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
Cloud Foundry CAPI All ~ 1.78.0 -

II. Public POCs for CVE-2019-3785

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III. Intelligence Information for CVE-2019-3785

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Vendor Advisories for CVE-2019-3785 (1)

Security Blog Posts for CVE-2019-3785 (1)

IV. Related Vulnerabilities

Same product: CAPI
Same vendor: Cloud Foundry
Same weakness: CWE-285

V. Comments for CVE-2019-3785

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