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CVE-2021-28164

Quick assessment

Affected
The Eclipse Foundation Eclipse Jetty
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 9.4.37.v20210219 to 9.4.38.v20210224 存在安全漏洞，该漏洞允许请求的uri包含%2e or %2e%2e访问WEB-INF目录中受保护资源。

CVSS 5.3 · Medium EPSS 82.37% · P100

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-28164

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
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 9.4.37.v20210219 to 9.4.38.v20210224 存在安全漏洞，该漏洞允许请求的uri包含%2e or %2e%2e访问WEB-INF目录中受保护资源。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
The Eclipse Foundation Eclipse Jetty 9.4.37.v20210219 ~ unspecified -

II. Public POCs for CVE-2021-28164

# POC Description Source Link Shenlong Link
1 jetty /CVE-2021-28164/분석 및 결과 https://github.com/jammy0903/-jettyCVE-2021-28164- POC Details
2 Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224 is susceptible to improper authorization. The default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. An attacker can access sensitive information regarding the implementation of a web application. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-28164.yaml POC Details
3 None https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Jetty%20WEB-INF%20%E6%95%8F%E6%84%9F%E4%BF%A1%E6%81%AF%E6%B3%84%E9%9C%B2%E6%BC%8F%E6%B4%9E%20CVE-2021-28164.md POC Details
4 https://github.com/vulhub/vulhub/blob/master/jetty/CVE-2021-28164/README.md POC Details
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III. Intelligence Information for CVE-2021-28164

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Vendor Advisories for CVE-2021-28164 (5)

Mailing List Discussions for CVE-2021-28164 (18)

Same Patch Batch · The Eclipse Foundation · 2021-04-01 · 3 CVEs total

CVE-2021-28165 7.5 HIGH Eclipse Jetty 资源管理错误漏洞
CVE-2021-28163 2.7 LOW Eclipse Jetty 后置链接漏洞

IV. Related Vulnerabilities

Same product: Eclipse Jetty
Same vendor: The Eclipse Foundation
Same weakness: CWE-200

V. Comments for CVE-2021-28164

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