Buffer Overflow Vulnerabilities in IP Softphone

Original Release Date: September 11, 2007
Last Revised: September 11, 2007
Number: ASA-2007-314
Risk Level: Low
Advisory Version: 1.0
Advisory Status: Final

1. Overview:

Avaya IP Softphone installs various Windows Component Object Model (COM) objects that interface with Internet Explorer (IE). Multiple buffer overflow vulnerabilities in the COM objects installed with IP Softphone have recently been reported to Avaya.

If a user with IP Softphone installed on their system visited a malicious intranet Web site, the malicious site could exploit one of the vulnerable routines in the IP Softphone COM Objects and obtain administrative access on the vulnerable system. This vulnerability can only be exploited by a Web site located within a local intranet, as the COM objects installed by IP Softphone are not marked as "safe for scripting". Systems with IP Softphone installed are vulnerable if they have IE 6 SP2 or earlier, and IE security settings for "Local intranet" are set to Low or the security setting "Initialize and script ActiveX controls not marked as safe" is not Disabled.

The Common Vulnerabilities and Exposures project name for this issue is CVE-2007-3286.

Avaya would like to thank Kurt Grutzmacher for reporting these issues.

2. Avaya System Products with Buffer Overflow Issues:

Product: Affected Version(s): Risk Level: Actions:
Avaya IP Softphone R5.2 and R6.0, including Service Packs and Video Integrator Low Install R5.2 Service Pack 3 supplied on support.avaya.com. The next service pack for R6.0 will also contain the fix for this issue (fall 2007). To mitigate these issues, Avaya recommends setting the Security Level in IE for the "Local intranet" zone to be at least Medium to prevent potentially dangerous ActiveX controls from executing. IP Softphone users can also upgrade to IE 7, which has protection against such attacks.

3. 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.

4. 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 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.

5. Revision History:

V 1.0 - September 11, 2007 - 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.

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