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CVE-2023-45648— Apache Tomcat: Trailer header parsing too lenient

EPSS 59.48% · P98
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I. Basic Information for CVE-2023-45648

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Trailer header parsing too lenient
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Input Validation vulnerability in Apache Tomcat.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 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. 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 fix the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 输入验证错误漏洞
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，该漏洞源于没有正确解析HTTP尾部标头，导致攻击者可以利用特制的尾部标头造成反向代理走私。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9.0.81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

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache Tomcat 11.0.0-M1 ~ 11.0.0-M11 -

II. Public POCs for CVE-2023-45648

#POC DescriptionSource LinkShenlong Link
1Apache Tomcat from versions 8.5.0 to 8.5.93, 9.0.0-M1 to 9.0.81, 10.1.0-M1 to 10.1.13, and 11.0.0-M1 to 11.0.0-M11 contain an improper input validation caused by incorrect parsing of HTTP trailer headers, letting attackers craft headers to cause request smuggling, exploit requires sending malicious trailer headers. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-45648.yamlPOC Details
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III. Intelligence Information for CVE-2023-45648

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

CVE-2023-42795Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subseque
CVE-2023-42794Apache 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-20

V. Comments for CVE-2023-45648

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