CVE-2020-5416— CF clusters with NGINX in front of them may be vulnerable to DoS
Quick assessment
Affected
Cloud Foundry Routing
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 Foundry Routing 0.204.0之前版本存在漏洞，攻击者在未经身份验证的恶意攻击者通过发送精心编制的HTTP请求导致gorouter从NGINX后端池中删除。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-5416
Vulnerability Information
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Vulnerability Title
CF clusters with NGINX in front of them may be vulnerable to DoS
Source: CVE Program / CVE List V5
Vulnerability Description
Cloud Foundry Routing (Gorouter), versions prior to 0.204.0, when used in a deployment with NGINX reverse proxies in front of the Gorouters, is potentially vulnerable to denial-of-service attacks in which an unauthenticated malicious attacker can send specially-crafted HTTP requests that may cause the Gorouters to be dropped from the NGINX backend pool.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Vulnerability Title
Cloud Foundry Routing 安全漏洞
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 Foundry Routing 0.204.0之前版本存在漏洞，攻击者在未经身份验证的恶意攻击者通过发送精心编制的HTTP请求导致gorouter从NGINX后端池中删除。
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 | Routing | All ~ 0.204.0 | - |
|
| Cloud Foundry | CF Deployment | All ~ 13.13.0 | - |
|
II. Public POCs for CVE-2020-5416
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2020-5416 (1)
-
https://www.cloudfoundry.org/blog/cve-2020-5416 x_refsource_CONFIRM
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V. Comments for CVE-2020-5416
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