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CVE-2022-42252— Apache Tomcat request smuggling via malformed content-length

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 存在环境问题漏洞，该漏洞源于当 rejectIllegalHeader 设置为 false 时，Tomcat 可能存在请求走私问题（Request Smuggling）。

AI Predicted 5.9 Difficulty: Easy EPSS 1.57% · P75
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I. Basic Information for CVE-2022-42252

Vulnerability Information
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Vulnerability Title
Apache Tomcat request smuggling via malformed content-length
Source: CVE Program / CVE List V5
Vulnerability Description
If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Tomcat 环境问题漏洞
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 存在环境问题漏洞，该漏洞源于当 rejectIllegalHeader 设置为 false 时，Tomcat 可能存在请求走私问题（Request Smuggling）。
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 10.1.0-M1 ~ 10.1.0 -

II. Public POCs for CVE-2022-42252

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III. Intelligence Information for CVE-2022-42252

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Vendor Advisories for CVE-2022-42252 (1)

Mailing List Discussions for CVE-2022-42252 (1)

Same Patch Batch · Apache Software Foundation · 2022-11-01 · 3 CVEs total

CVE-2022-31777 Apache Spark XSS vulnerability in log viewer UI Javascript
CVE-2022-34662 Apache DolphinScheduler prior to 3.0.0 allows path traversal

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-444

V. Comments for CVE-2022-42252

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