When running on Windows with enableCmdLineArguments enabled, the CGI Servlet in Apache Tomcat 9.0.0.M1 to 9.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 is vulnerable to Remote Code Execution due to a bug in the way the JRE passes command line arguments to Windows. The CGI Servlet is disabled by default. The CGI option enableCmdLineArguments is disable by default in Tomcat 9.0.x (and will be disabled by default in all versions in response to this vulnerability). For a detailed explanation of the JRE behaviour, see Markus Wulftange’s blog (https://codewhitesec.blogspot.com/2016/02/java-and-command-line-injections-in-windows.html) and this archived MSDN blog (https://web.archive.org/web/20161228144344/https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/).
packetstormsecurity.com/files/153506/Apache-Tomcat-CGIServlet-enableCmdLineArguments-Remote-Code-Execution.html
seclists.org/fulldisclosure/2019/May/4
access.redhat.com/errata/RHSA-2019:1712
blog.trendmicro.com/trendlabs-security-intelligence/uncovering-cve-2019-0232-a-remote-code-execution-vulnerability-in-apache-tomcat
codewhitesec.blogspot.com/2016/02/java-and-command-line-injections-in-windows.html
github.com/apache/tomcat
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nvd.nist.gov/vuln/detail/CVE-2019-0232
security.netapp.com/advisory/ntap-20190419-0001
web.archive.org/web/20161228144344/https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way
web.archive.org/web/20200227030103/www.securityfocus.com/bid/107906
www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-784
www.oracle.com/security-alerts/cpuapr2020.html
www.oracle.com/security-alerts/cpuApr2021.html
www.oracle.com/security-alerts/cpujan2020.html
www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
www.synology.com/security/advisory/Synology_SA_19_17
wwws.nightwatchcybersecurity.com/2019/04/30/remote-code-execution-rce-in-cgi-servlet-apache-tomcat-on-windows-cve-2019-0232