openssh security update (RHSA-2006-0298)

Original Release Date: August 31, 2006
Last Revised: August 31, 2006
Number: ASA-2006-174
Risk Level: Low
Advisory Version: 1.0
Advisory Status: Interim

1. Overview:

OpenSSH is a suite of tools for interoperating with the SSH protocol, brought to you by the folks who make OpenBSD.

The scp command was found to contain an arbitrary command execution vulnerability in the method it uses to securely copy files locally. A malicious user could possibly take advantage of this vulnerability to run arbitrary commands as the user running scp. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2006-0225 to the issue.

Due to a bug in sshd, a remote attacker could possibly bypass IP address restrictions on a host running sshd where the "VerifyReverseMapping" option is disabled. If the system the remote attacker was coming from had a reverse DNS record that resolved to an IP that was allowed into the system via either the "from=" and/or "user@host" OpenSSH configuration file directives, sshd could allow the user access. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0386 to this issue.

More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:

2. Avaya System Products with openssh installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya S87XX/S8500/S8300 CM 3.0 and before Low Updating to CM 3.1 or later is recommended to resolve this issue. See recommended actions below.
Avaya Intuity LX All Low See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy
Avaya Messaging Storage Server All Low See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy
Avaya Message Networking All Low See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy
Avaya CCS/SES All None None

Recommended Actions:
For all system products which use vulnerable versions of openssh, Avaya recommends that customers restrict local and network access to the server. This restriction should be enforced through the use of physical security, firewalls, ACLs, VPNs, and other generally-accepted networking practices until such time as an update becomes available and can be installed.

3. Avaya Software-Only Products

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 vendors guidance:

4. Software-Only Products:

Product: Affected Version(s): Risk Level: Actions:
Avaya Interactive Response(IR) All None Depending on the Operating System provided by customers, the affected packages may be installed on the underlying Operating System supporting the IR application. The IR application does not require the software described in this advisory.
CVLAN All Low See recommended actions below.
Avaya Integrated Management Suite(IMS) All Low See recommended actions below.

Recommended Actions:
Avaya recommends that customers follow recommended actions supplied by the Operating System vendor (e.g. RedHat Linux) or remove the affected packages.

5. Additional Information:

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.

6. Disclaimer:

ALL INFORMATION IS BELIEVED TO BE CORRECT AT THE TIME OF PUBLICATION AND IS PROVIDED "AS IS". AVAYA INC., ON BEHALF ITSELF AND ITS SUBSIDIARIES AND AFFILIATES (HEREINAFTER COLLECTIVELY REFERRED TO AS "AVAYA"), DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING 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, 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.

7. Revision History:

V 1.0 - August 31, 2006 - Initial Statement issued.

Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or securityalerts@avaya.com.

© 2006 Avaya Inc. All Rights Reserved. All trademarks identified by the ® or ™ are registered trademarks or trademarks, respectively, of Avaya Inc. All other trademarks are the property of their respective owners.