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Red Hat 6: RHSA-2012:1206-01 Moderate: Python Paste Script Access Issue

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Calendar Grey August 27, 2012
Scroller Redhat
Red Hat Security Advisory Synopsis: Moderate: python-paste-script security update Advisory ID: RHSA-
An updated python-paste-script package that fixes one security issue is now available for Red Hat Enterprise Linux 6

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Summary

Python Paste provides middleware for building and running Python web applications. The python-paste-script package includes paster, a tool for working with and running Python Paste applications.
It was discovered that paster did not drop supplementary group privileges when started by the root user. Running "paster serve" as root to start a Python web application that will run as a non-root user and group resulted in that application running with root group privileges. This could possibly allow a remote attacker to gain access to files that should not be accessible to the application. (CVE-2012-0878)
All paster users should upgrade to this updated package, which contains a backported patch to resolve this issue. All running paster instances configured to drop privileges must be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat moderate severity access risk python-paste-script

References

https://access.redhat.com/security/cve/CVE-2012-0878 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Server (v. 6):
Source:
noarch: python-paste-script-1.7.3-5.el6_3.noarch.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
noarch: python-paste-script-1.7.3-5.el6_3.noarch.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/#package


Severity
important
Lowest
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Critical

Advisory ID: RHSA-2012:1206-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1206.html
Issue date: 2012-08-27

Topic

An updated python-paste-script package that fixes one security issue is nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory Red Hat moderate severity access risk python-paste-script

Relevant Releases Architectures

Red Hat Enterprise Linux Server (v. 6) - noarch

Red Hat Enterprise Linux Workstation (v. 6) - noarch

Bugs Fixed

796790 - CVE-2012-0878 python-paste-script: Supplementary groups not dropped when started an application with "paster serve" as root

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