[arch-security] [ASA-201609-7] tomcat8: proxy injection
Christian Rebischke
Chris.Rebischke at archlinux.org
Sat Sep 10 02:29:40 UTC 2016
Arch Linux Security Advisory ASA-201609-7
=========================================
Severity: Medium
Date : 2016-09-10
CVE-ID : CVE-2016-5388
Package : tomcat8
Type : proxy injection
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
Summary
=======
The package tomcat8 before version 8.0.37-1 is vulnerable to proxy
injection.
Resolution
==========
Upgrade to 8.0.37-1.
# pacman -Syu "tomcat8>=8.0.37-1"
The problems have been fixed upstream in version 8.0.37.
Workaround
==========
None.
Description
===========
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.
Impact
======
A remote attacker is able to use this flaw to redirect HTTP requests
performed by a CGI script to an attacker-controlled proxy via a
malicious HTTP request.
References
==========
https://access.redhat.com/security/cve/CVE-2016-5388
https://www.apache.org/security/asf-httpoxy-response.txt
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