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CVE-2023-42795— Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests

Quick assessment

Affected
Apache Software Foundation Apache Tomcat
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.

Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。该程序实现了对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat存在安全漏洞，该漏洞源于回收内部对象时存在安全漏洞，导致请求/响应信息泄露。受影响的产品和版本：Apache Tomcat 11.0.0-M1至11.0.0-M11版本，10.1.0-M1至10.1.13版本，9.0.0-M1至9.0.80版本，8.5.0至8.5.93版本。

AI Predicted 5.3 Difficulty: Hard EPSS 2.16% · P81

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-42795

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests
Source: CVE Program / CVE List V5
Vulnerability Description
Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
清理环节不完整
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Tomcat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。该程序实现了对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat存在安全漏洞，该漏洞源于回收内部对象时存在安全漏洞，导致请求/响应信息泄露。受影响的产品和版本：Apache Tomcat 11.0.0-M1至11.0.0-M11版本，10.1.0-M1至10.1.13版本，9.0.0-M1至9.0.80版本，8.5.0至8.5.93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

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Tomcat 11.0.0-M1 ~ 11.0.0-M11 -

II. Public POCs for CVE-2023-42795

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III. Intelligence Information for CVE-2023-42795

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Vendor Advisories for CVE-2023-42795 (3)

Mailing List Discussions for CVE-2023-42795 (2)

Same Patch Batch · Apache Software Foundation · 2023-10-10 · 3 CVEs total

CVE-2023-45648 Apache Tomcat: Trailer header parsing too lenient
CVE-2023-42794 Apache Tomcat: FileUpload: DoS due to accumulation of temporary files on Windows

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-459

V. Comments for CVE-2023-42795

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