drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Prüfung von Umgebungsvariablen in python-twisted-web
Name: |
Mangelnde Prüfung von Umgebungsvariablen in python-twisted-web |
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ID: |
RHSA-2016:1978-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Fr, 30. September 2016, 00:00 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-1000111 |
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Applikationen: |
python-twisted-web |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: python-twisted-web security update Advisory ID: RHSA-2016:1978-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1978.html Issue date: 2016-09-29 CVE Names: CVE-2016-1000111 =====================================================================
1. Summary:
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
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. (CVE-2016-1000111)
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 issue.
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1357345 - CVE-2016-1000111 Python Twisted: sets environmental variable based on user supplied Proxy request header
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source: python-twisted-web-8.2.0-5.el6_8.src.rpm
i386: python-twisted-web-8.2.0-5.el6_8.i686.rpm
x86_64: python-twisted-web-8.2.0-5.el6_8.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: python-twisted-web-8.2.0-5.el6_8.src.rpm
i386: python-twisted-web-8.2.0-5.el6_8.i686.rpm
ppc64: python-twisted-web-8.2.0-5.el6_8.ppc64.rpm
s390x: python-twisted-web-8.2.0-5.el6_8.s390x.rpm
x86_64: python-twisted-web-8.2.0-5.el6_8.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: python-twisted-web-8.2.0-5.el6_8.src.rpm
i386: python-twisted-web-8.2.0-5.el6_8.i686.rpm
x86_64: python-twisted-web-8.2.0-5.el6_8.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
Source: python-twisted-web-12.1.0-5.el7_2.src.rpm
x86_64: python-twisted-web-12.1.0-5.el7_2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source: python-twisted-web-12.1.0-5.el7_2.src.rpm
ppc64: python-twisted-web-12.1.0-5.el7_2.ppc64.rpm
ppc64le: python-twisted-web-12.1.0-5.el7_2.ppc64le.rpm
s390x: python-twisted-web-12.1.0-5.el7_2.s390x.rpm
x86_64: python-twisted-web-12.1.0-5.el7_2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
Source: python-twisted-web-12.1.0-5.el7_2.src.rpm
x86_64: python-twisted-web-12.1.0-5.el7_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-1000111 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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