ArchLinux: 201609-21: tomcat7: proxy injection
Summary
It was discovered that tomcat used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a CGI script to an attacker-controlled proxy via a malicious HTTP request.
Resolution
Upgrade to 7.0.72-1.
# pacman -Syu "tomcat7>=7.0.72-1"
The problems have been fixed upstream in version 7.0.72.
References
https://access.redhat.com/security/cve/CVE-2016-5388 https://www.apache.org/security/asf-httpoxy-response.txt
Workaround
None.