Oracle Linux 6 / 7 : python-twisted-web (ELSA-2016-1978)

This script is Copyright (C) 2016 Tenable Network Security, Inc.

Synopsis :

The remote Oracle Linux host is missing a security update.

Description :

From Red Hat Security Advisory 2016:1978 :

An update for python-twisted-web is now available for Red Hat
Enterprise Linux 6 and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Twisted is an event-based framework for internet applications. Twisted
Web is a complete web server, aimed at hosting web applications using
Twisted and Python, but fully able to serve static pages too.

Security Fix(es) :

* It was discovered that python-twisted-web 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.

Note: After this update, python-twisted-web will no longer pass the
value of the Proxy request header to scripts via the HTTP_PROXY
environment variable.

Red Hat would like to thank Scott Geary (VendHQ) for reporting this

See also :

Solution :

Update the affected python-twisted-web package.

Risk factor :

Medium / CVSS Base Score : 4.3
CVSS Temporal Score : 4.1
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 93804 ()

Bugtraq ID:

CVE ID: CVE-2016-1000111

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now