The RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. Each software package consists of an archive of files along with information about the package such as its version, description, and other information.
It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely. Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-6435 to this issue.
More information about these vulnerabilities can be found in the security advisory issued by Red Hat:
| Product: | Affected Version(s): | Risk Level: | Actions: |
|---|---|---|---|
| Avaya Aura® Application Enablement Services | 6.1 thru 6.3.3 with Security Update Patch 1 | Low | For 6.0 to 6.3.2, upgrade to 7.0. For 6.3.3, install Security Update Patch 1 and 2. |
Avaya Aura® Application Server 5300:
|
2.x thru 3.0 SP9 | Low | Upgrade to 3.0 SP10 or later. |
| Avaya IQ | 5.2 thru 5.2.5 | Low | Upgrade to 5.2.6 and install Patch 2 or later. |
| Avaya CMS | R17 thru R17 R4 | Low | Upgrade to R17 R5 or R18, or later. |
| Avaya Breeze™ Platform | 2.0 thru 3.0 SP3 | Low | Upgrade to 3.0 SP4 or later. |
| Avaya Aura® Communication Manager | 6.x | Low | Upgrade to CM 7.0 or later. |
Avaya Communication Server 1000:
|
7.x | Low | See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned. |
| Avaya Aura® Conferencing | 7.0 thru 8.0 SP1 | Low | Upgrade to 8.0 SP2 or later. |
| Avaya Aura® Conferencing Standard Edition | 6.x | Low | See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned. It is recommended that customers migrate to one of Avaya's conferencing solutions including Aura® Conferencing. |
| Avaya Aura® Experience Portal | 6.0 thru 7.0.2 | Low | For 6.0, upgrade to 7.0.2 and Avaya Linux for 7.0.2 and install
Avaya Linux Patch 2015-10 or later. For 7.0 to 7.0.2, install Avaya Linux Patch 2015-10 or later. |
| Avaya IP Office Server Edition | 8.1 thru 9.1.3 | Low | Upgrade to 9.1.4 or later. |
| Avaya IP Office Application Server | 8.0 thru 9.1.3 | Low | Upgrade to 9.1.4 or later. |
| Avaya Meeting Exchange | 5.x through 6.2 SP3 | Low | Upgrade to 6.2 SP4 or later. |
| Avaya Message Networking | 6.3 including Patch 1 and Patch 2 | Low | Install Patch 3 or later. |
| Avaya Aura® Messaging | 6.0 thru 6.3.2 | Low | Upgrade to 6.3.3 or later. |
| Avaya one-X® Client Enablement Services | 6.2 thru 6.2 SP3 | Low | Upgrade to 6.2 SP4 or later. |
| Avaya Proactive Contact | 5.0 thru 5.1.1 | Low | Upgrade to 5.1.2 or later. |
| Avaya Aura® Session Manager | 5.x thru 6.3.x | Low | Upgrade to 7.0 or later. |
| Avaya Aura® System Manager | 5.x thru 6.3.11 | Low | Upgrade to 6.3.12 or later. |
| Avaya Aura® System Platform | 6.0 thru 6.3.6 | Low | Upgrade to 6.3.7 or later. |
| Avaya Aura® Utility Services | 6.1.x thru 6.3 SP7 | Low | Upgrade to 6.3 SP8 or later. |
Recommended Actions for System Products:
Avaya strongly recommends following networking and
security best practices by implementing firewalls, ACLs,
physical security or other appropriate access restrictions.
Though Avaya believes such restrictions should always be in
place, risk to Avaya products and the surrounding network
from this potential vulnerability may be mitigated by
ensuring these practices are implemented until such time as
an Avaya provided product update or the recommended Avaya
action is applied.
Further restrictions as deemed necessary based on the
customer's security policies may be required during this
interim period, but the System Product operating system or
application should not be modified unless the change is
approved by Avaya. Making changes that are not approved may
void the Avaya product service contract.
When determining risk, Avaya takes into account many factors as outlined by Avaya's Security Vulnerability Classification Policy. The following table describes factors that mitigate the risk of specific vulnerabilities for affected Avaya products:
| Vulnerability | Mitigating Factors |
|---|---|
|
CVE-2013-6435 |
The risk is Low for all listed products because use of rpm to manage packages on an Avaya System Product would constitute non-standard user interaction. Package updates are done by the software as part of installation, upgrade, service pack or a patch and the software must be officially provided by Avaya or an authorized Business Partner. |
Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.
In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.
| Product: | Actions: |
|---|---|
| Avaya Aura® Application Enablement Services | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the AES application. |
| Avaya IQ | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the Avaya IQ application. |
| CVLAN | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the CVLAN application. |
| Avaya Aura® Experience Portal | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the EP application. |
| Avaya Integrated Management Suite (IMS) | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the IMS application. |
| Avaya Aura® Presence Services | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the PS application. |
Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends following recommended actions supplied by Red Hat regarding their Enterprise Linux.
Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.
ALL INFORMATION IS BELIEVED TO BE CORRECT AT THE TIME OF PUBLICATION, IS PROVIDED "AS IS", AND IS APPLICABLE ONLY TO PRODUCT VERSIONS ELIGIBLE FOR MANUFACTURER SUPPORT IN ACCORDANCE WITH AVAYA'S PRODUCT LIFE CYCLE POLICY. AVAYA INC., ON BEHALF ITSELF AND ITS SUBSIDIARIES AND AFFILIATES (HEREINAFTER COLLECTIVELY REFERRED TO AS "AVAYA"), DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND FURTHERMORE, AVAYA MAKES NO REPRESENTATIONS OR WARRANTIES THAT THE STEPS RECOMMENDED WILL ELIMINATE SECURITY OR VIRUS THREATS TO CUSTOMERS' SYSTEMS. IN NO EVENT SHALL AVAYA BE LIABLE FOR ANY DAMAGES WHATSOEVER ARISING OUT OF OR IN CONNECTION WITH THE INFORMATION OR RECOMMENDED ACTIONS PROVIDED HEREIN, INCLUDING DIRECT, INDIRECT, INCIDENTAL, STATUTORY, CONSEQUENTIAL DAMAGES, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF AVAYA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
THE INFORMATION PROVIDED HERE DOES NOT AFFECT THE SUPPORT AGREEMENTS IN PLACE FOR AVAYA PRODUCTS. SUPPORT FOR AVAYA PRODUCTS CONTINUES TO BE EXECUTED AS PER EXISTING AGREEMENTS WITH AVAYA.
V 1.0 - January 26, 2015 - Initial Statement issued.
V 2.0 - October 16, 2015 - Updated all products affected versions and actions
except Meeting Exchange and Proactive Contact.
V 3.0 - November 19, 2015 - Updated CMS affected versions and actions.
V 4.0 - August 15, 2016 - Updated PC affected versions and actions.
V 5.0 - September 11, 2017 - Updated affected versions and actions for MX, and
set Advisory status to Final.
Avaya customers or Business Partners should report any security issues found with Avaya products via the standard support process.
Independent security researchers can contact Avaya at
[email protected].
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