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I. Basic Information for CVE-2021-28169
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Eclipse Jetty 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Jetty是Eclipse基金会的一个开源的、基于Java的Web服务器和Java Servlet容器。 Eclipse Jetty 中存在安全漏洞,该漏洞源于通过对ConcatServlet的双重编码路径请求访问WEB-INF目录中的受保护资源。以下产品及型号受到影响: Eclipse Jetty 9.4.40 版本及之前版本、Eclipse Jetty 10.0.2 版本及之前版本、Eclipse Jetty 11.0.2 版本及之前版本。
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
The Eclipse FoundationEclipse Jetty unspecified ~ 9.4.40 -
II. Public POCs for CVE-2021-28169
#POC DescriptionSource LinkShenlong Link
1Eclipse Jetty through 9.4.40, through 10.0.2, and through 11.0.2 is susceptible to information disclosure. Requests to the ConcatServlet with a doubly encoded path can access protected resources within the WEB-INF directory, thus enabling an attacker to potentially obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-28169.yamlPOC Details
2Nonehttps://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Jetty%20%E9%80%9A%E7%94%A8%20Servlets%20%E7%BB%84%E4%BB%B6%20ConcatServlet%20%E4%BF%A1%E6%81%AF%E6%B3%84%E9%9C%B2%E6%BC%8F%E6%B4%9E%20CVE-2021-28169.mdPOC Details
3https://github.com/vulhub/vulhub/blob/master/jetty/CVE-2021-28169/README.mdPOC Details
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III. Intelligence Information for CVE-2021-28169
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IV. Related Vulnerabilities
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