Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Red Hat Enterprise Linux: RHSA-2014:1194-01 Moderate: Conga Security Flaws

red hat
Calendar Grey September 16, 2014
Scroller Redhat
Delve into the most recent Red Hat announcement regarding conga, addressing multiple moderate level security vulnerabilities. Discover additional details today.
Updated conga packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5

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/articles/11258

Summary

The Conga project is a management system for remote workstations. It consists of luci, which is a secure web-based front end, and ricci, which is a secure daemon that dispatches incoming messages to underlying management modules.
It was discovered that Plone, included as a part of luci, did not properly protect the administrator interface (control panel). A remote attacker could use this flaw to inject a specially crafted Python statement or script into Plone's restricted Python sandbox that, when the administrator interface was accessed, would be executed with the privileges of that administrator user. (CVE-2012-5485)
It was discovered that Plone, included as a part of luci, did not properly sanitize HTTP headers provided within certain URL requests. A remote attacker could use a specially crafted URL that, when processed, would cause the injected HTTP headers to be returned as a part of the Plone HTTP response, potentially allowing the attacker to perform other more advanced attacks. (CVE-2012-5486)
Multiple information leak flaws were found in the way conga processed luci site extension-related URL requests. A remote, unauthenticated attacker could issue a specially crafted HTTP request that, when processed, would result in unauthorized information disclosure. (CVE-2013-6496)
It was discovered that various components in the luci site extension-related URLs were not properly restricted to administrative users. A remote, authenticated attacker could escalate their privileges to perform certain actions that should be restricted to administrative users, such as adding users and systems, and viewing log data. (CVE-2014-3521)
It was discovered that Plone, included as a part of luci, did not properly protect the privilege of running RestrictedPython scripts. A remote attacker could use a specially crafted URL that, when processed, would allow the attacker to submit and perform expensive computations or, in conjunction with other attacks, be able to access or alter privileged information. (CVE-2012-5488)
It was discovered that Plone, included as a part of luci, did not properly enforce permissions checks on the membership database. A remote attacker could use a specially crafted URL that, when processed, could allow the attacker to enumerate user account names. (CVE-2012-5497)
It was discovered that Plone, included as a part of luci, did not properly handle the processing of requests for certain collections. A remote attacker could use a specially crafted URL that, when processed, would lead to excessive I/O and/or cache resource consumption. (CVE-2012-5498)
It was discovered that Plone, included as a part of luci, did not properly handle the processing of very large values passed to an internal utility function. A remote attacker could use a specially crafted URL that, when processed, would lead to excessive memory consumption. (CVE-2012-5499)
It was discovered that Plone, included as a part of luci, allowed a remote anonymous user to change titles of content items due to improper permissions checks. (CVE-2012-5500)
The CVE-2014-3521 issue was discovered by Radek Steiger of Red Hat, and the CVE-2013-6496 issue was discovered by Jan Pokorny of Red Hat.
In addition, these updated conga packages include several bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 5.11 Technical Notes, linked to in the References section, for information on the most significant of these changes
All conga users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the luci and ricci services will be restarted automatically.

References

https://access.redhat.com/security/cve/CVE-2012-5485 https://access.redhat.com/security/cve/CVE-2012-5486 https://access.redhat.com/security/cve/CVE-2012-5488 https://access.redhat.com/security/cve/CVE-2012-5497 https://access.redhat.com/security/cve/CVE-2012-5498 https://access.redhat.com/security/cve/CVE-2012-5499 https://access.redhat.com/security/cve/CVE-2012-5500 https://access.redhat.com/security/cve/CVE-2013-6496 https://access.redhat.com/security/cve/CVE-2014-3521 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/5/html/5.11_Technical_Notes/index.html

Package List

Red Hat Enterprise Linux Clustering (v. 5 server):
Source: conga-0.12.2-81.el5.src.rpm
i386: conga-debuginfo-0.12.2-81.el5.i386.rpm luci-0.12.2-81.el5.i386.rpm ricci-0.12.2-81.el5.i386.rpm
ia64: conga-debuginfo-0.12.2-81.el5.ia64.rpm luci-0.12.2-81.el5.ia64.rpm ricci-0.12.2-81.el5.ia64.rpm
ppc: conga-debuginfo-0.12.2-81.el5.ppc.rpm luci-0.12.2-81.el5.ppc.rpm ricci-0.12.2-81.el5.ppc.rpm
x86_64: conga-debuginfo-0.12.2-81.el5.x86_64.rpm luci-0.12.2-81.el5.x86_64.rpm ricci-0.12.2-81.el5.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#package


Advisory ID: RHSA-2014:1194-01
Product: Red Hat Enterprise Linux
Issue date: 2014-09-16

Topic

Updated conga packages that fix multiple security issues and several bugsare now available for Red Hat Enterprise Linux 5.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Clustering (v. 5 server) - i386, ia64, ppc, x86_64

Bugs Fixed

874649 - CVE-2012-5500 conga (Plone): Anonymous users can batch change titles of content items

874657 - CVE-2012-5499 conga (Plone): Partial denial of service through internal function

874665 - CVE-2012-5498 conga (Plone): Partial denial of service through Collections functionality

874681 - CVE-2012-5497 conga (Plone): Anonymous users can list user account names

878934 - CVE-2012-5485 conga (Plone): Restricted Python injection

878939 - CVE-2012-5486 conga (Plone): Reflexive HTTP header injection

878945 - CVE-2012-5488 conga (Plone): Restricted Python injection

970288 - luci initscript does not check return values correctly

971541 - CVE-2013-6496 conga: Multiple information leak flaws in various luci site extensions

1065263 - luci: reflect startup_wait parameter added in postgres-8 RA (el5.11+)

1072075 - luci mishandling of distro release string leads to dropping some features and parameters1076711 - ricci: end-use modules do not handle stdin polling correctly

1112813 - CVE-2014-3521 luci: unauthorized administrative access granted to non-administrative users

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.