-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Cisco Security Advisory: Cisco Unified Contact Center and IP
Contact
Center JTapi Gateway Vulnerability
Advisory ID: cisco-sa-20070110-jtapi
http://www.cisco.com/warp/public/707/cisco-sa-
20070110-jtapi.shtml
Revision 1.0
For Public Release 2007 January 10 1600 UTC (GMT)
-
------------------------------------------------------------
---------
Contents
Summary
Affected Products
Details
Impact
Software Version and Fixes
Workarounds
Obtaining Fixed Software
Exploitation and Public Announcements
Status of this Notice:FINAL
Distribution
Revision History
Cisco Security Procedures
-
------------------------------------------------------------
---------
Summary
=======
Cisco Unified Contact Center Enterprise, Cisco Unified
Contact Center
Hosted, Cisco IP Contact Center Enterprise, and Cisco IP
Contact
Center Hosted editions are affected by a vulnerability that
may
result in the restart of JTapi Gateway process. Until this
process
restarts, no new connections can be processed. Existing
connections
will continue to work.
Cisco Unified Contact Center Express and Cisco IP Contact
Center
Express are not affected by this vulnerability.
Cisco has made free software available to address this
vulnerability
for affected customers.
This advisory is posted at
http://www.cisco.com/warp/public/707/cisco-sa
-20070110-jtapi.shtml.
Affected Products
=================
Vulnerable Products
+------------------
All versions of Cisco Unified Contact Center Enterprise,
Cisco
Unified Contact Center Hosted, Cisco IP Contact Center
Enterprise,
and Cisco IP Contact Center Hosted editions are affected.
Products Confirmed Not Vulnerable
+--------------------------------
* Cisco Unified Contact Center Express and Cisco IP
Contact Center
Express editions are not affected.
* Cisco Unified Intelligent Contact Management Enterprise
and
Hosted are not affected.
No other Cisco products are known to be affected by this
vulnerability.
Details
=======
Cisco Unified Contact Center Enterprise (formerly Cisco IP
Contact
Center [IPCC] Enterprise), an integral component of the
Cisco Unified
Communications system, provides intelligent routing and
call
treatment with blending of multiple communication channels.
Cisco Unified Contact Center Hosted (formerly known as Cisco
IP
Contact Center [IPCC] Hosted) is a platform that enables
customers to
move to a Customer Interaction Network. The Customer
Interaction
Network is a distributed, IP-based customer service
infrastructure
comprising a suite of multichannel services and customer
relationship
management applications.
A vulnerability exists in all versions of Cisco Unified
Contact
Center Enterprise, Cisco Unified Contact Center Hosted,
Cisco IP
Contact Center Enterprise, and Cisco IP Contact Center
Hosted
editions that may result in the restart of JTapi Gateway
process. The
restart of this process can take up to several minutes and
during
this time no new calls can be processed. Existing calls
continue to
work. If the system is deployed in a redundant way, the
redundant
system will take over preventing a loss of service. However
the JTapi
Gateway on the redundant system can also be restarted by
exploiting
the same vulnerability.
To exploit this vulnerability, an attacker will need to
complete a
3-way TCP handshake to the JTapi server port. This port
number can be
dependent on how the product is deployed and whether there
is a
redundant pair of servers. It can be found in the Windows
registry by
looking up the jtapiServerPortNumber value in the Windows
Registry,
located at:
* HKEY_LOCAL_MACHINESOFTWARECisco Systems, Inc.ICM
[instanceName]PG[Number][A/B]PGCurrentVersionJGWSjgw[nu
mber]
JGWDataConfig.
Vulnerability Scoring Details
+----------------------------
Cisco is providing scores for the vulnerabilities in this
advisory
based on the Common Vulnerability Scoring System (CVSS).
Cisco will
provide a base and temporal score. Customers can then
compute
environmental scores to assist in determining the impact of
the
vulnerability in individual networks. Cisco PSIRT will set
the bias
in all cases to normal. Customers are encouraged to apply
the bias
parameter when determining the environmental impact of a
particular
vulnerability.
CVSS is a standards based scoring method that conveys
vulnerability
severity and helps determine urgency and priority of
response.
Cisco has provided a FAQ to answer additional questions
regarding
CVSS at
http://www.cisco.com/web/about/security/in
telligence/cvss-qandas.html.
Cisco has also provided a CVSS calculator to help compute
the
environmental impact for individual networks at
https://intellishield.cisco.com/security/alertmanager
/cvss.
Cisco Bug IDs:
CSCsh15483 (registered customers only) - Third party
connects to
JGW's TCP port, JGW asserts and fails over.
CVSS Base Score: 3.3
- - Access Vector: Remote
- - Access Complexity: Low
- - Authentication: Not Required
- - Confidentiality Impact: None
- - Integrity Impact: None
- - Availability Impact: Complete
- - Impact Bias: Normal
CVSS Temporal Score: 2.7
- - Exploitability: Functional
- - Remediation Level: Official Fix
- - Report Confidence: Confirmed
Impact
======
Successful exploitation of the vulnerability may result in
the
restart of JTapi Gateway process. Restarting this process
can take
several minutes and during this time no new calls can be
processed.
Existing calls continue to work without any problems.
Software Version and Fixes
==========================
When considering software upgrades, also consult
http://www.cisco.com/go
/psirt and any subsequent advisories to
determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be
certain the
devices to be upgraded contain sufficient memory and that
current
hardware and software configurations will continue to be
supported
properly by the new release. If the information is not
clear, contact
the Cisco Technical Assistance Center ("TAC") or
your contracted
maintenance provider for assistance.
+---------------------------------------+
| Software | Patch | Maintenance |
| Release | | |
|----------+------------+---------------|
| 5.0 | ICM5.0(0) | |
| | _SR13_ES18 | |
|----------+------------+---------------|
| | ICM6.0(0) | 6.0SR10 |
| 6.0 | _SR8_ES3 | (Available |
| | | April 2007) |
|----------+------------+---------------|
| 7.0 | ICM7.0(0) | |
| | _SR4_ES43 | |
|----------+------------+---------------|
| | ICM7.1(3) | 7.1(4) |
| 7.1 | _ES5 | (Available |
| | | March 2007) |
+---------------------------------------+
Maintenance releases can be downloaded at:
http://tools.cisco.com/support/downloads/go/MDFTr
ee.x?butype=cc
ICM5.0(0)_SR13_ES18 can be downloaded at:
http://www.cisco.com/cgi-bin/tablebui
ld.pl/d4b330d7b9c07d33f2833e1be69c6145
6.0.00_SR08_ES3 can be downloaded at:
http://www.cisco.com/cgi-bin/tablebui
ld.pl/48b796a9ba353f2d02897ae3e6bb1140
7.0.00_SR04_ES43 can be downloaded at:
http://www.cisco.com/cgi-bin/tablebui
ld.pl/47564eac9ea7b12357226a5f20bbbd66
7.1.03_ES5 can be downloaded at:
http://www.cisco.com/cgi-bin/tablebui
ld.pl/9df0152592e9779b3f9e8701a94e4422
Workarounds
===========
No workarounds exist for this vulnerability. The following
general
mitigation actions are relevant for this vulnerability:
Ensuring the
Cisco Unified Contact Center or Cisco IP Contact Center is
physically
or logically separated from the data network and isolated
from the
Internet which will limit the exposure to the exploitation
of the
vulnerability from the Internet or internal data networks.
Apply access control lists (ACLs) on routers, switches, and
firewalls
installed in front of the vulnerable network device such
that TCP/IP
traffic destined for the Cisco Unified Contact Center or
Cisco IP
Contact Center is allowed only from trusted sources. Refer
to
http:/
/www.cisco.com/warp/public/707/tacl.html for examples on
how to
apply ACLs on Cisco routers.
Obtaining Fixed Software
========================
Cisco will make free software available to address this
vulnerability
for affected customers. This advisory will be updated as
fixed
software becomes available. Prior to deploying software,
customers
should consult their maintenance provider or check the
software for
feature set compatibility and known issues specific to
their
environment.
Customers may only install and expect support for the
feature sets
they have purchased. By installing, downloading, accessing
or
otherwise using such software upgrades, customers agree to
be bound
by the terms of Cisco's software license terms found at
http://www.cisco.com/public/sw-license-agreement.html,
or as otherwise
set forth at Cisco.com Downloads at
http://www.cisco.com/public/sw-center/sw-usingswc.shtml.
Do not contact either "psirt cisco.com" or
"security-alertcisco.com"
for software upgrades.
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software
through
their regular update channels. For most customers, this
means that
upgrades should be obtained through the Software Center on
Cisco's
worldwide website at http://www.cisco.com.
Customers using Third Party Support Organizations
+------------------------------------------------
Customers whose Cisco products are provided or maintained
through
prior or existing agreement with third-party support
organizations
such as Cisco Partners, authorized resellers, or service
providers
should contact that support organization for guidance and
assistance
with the appropriate course of action in regards to this
advisory.
The effectiveness of any workaround or fix is dependent on
specific
customer situations such as product mix, network topology,
traffic
behavior, and organizational mission. Due to the variety of
affected
products and releases, customers should consult with their
service
provider or support organization to ensure any applied
workaround or
fix is the most appropriate for use in the intended network
before it
is deployed.
Customers without Service Contracts
+----------------------------------
Customers who purchase direct from Cisco but who do not hold
a Cisco
service contract and customers who purchase through
third-party
vendors but are unsuccessful at obtaining fixed software
through
their point of sale should get their upgrades by contacting
the Cisco
Technical Assistance Center (TAC). TAC contacts are as
follows:
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: taccisco.com
Have your product serial number available and give the URL
of this
notice as evidence of your entitlement to a free upgrade.
Free
upgrades for non-contract customers must be requested
through the
TAC.
Refer to http://www.cisco.com/warp/public/687/Directory/DirTAC
.shtml
for additional TAC contact information, including special
localized
telephone numbers and instructions and e-mail addresses for
use in
various languages.
Exploitation and Public Announcements
=====================================
The Cisco PSIRT is not aware of any public announcements or
malicious
use of the vulnerability described in this advisory.
This vulnerability was reported to Cisco by a customer.
Status of this Notice:FINAL
===========================
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND
DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF
THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE
DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR
UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this
document that
omits the distribution URL in the following section is an
uncontrolled copy, and may lack important information or
contain
factual errors.
Distribution
============
This advisory is posted on Cisco's worldwide website at :
http://www.cisco.com/warp/public/707/cisco-sa-
20070110-jtapi.shtml
In addition to worldwide web posting, a text version of this
notice
is clear-signed with the Cisco PSIRT PGP key and is posted
to the
following e-mail and Usenet news recipients.
* cust-security-announcecisco.com
* first-teamsfirst.org
* bugtraqsecurityfocus.com
* vulnwatchvulnwatch.org
* ciscospot.colorado.edu
* cisco-nsppuck.nether.net
* full-disclosurelists.grok.org.uk
* comp.dcom.sys.cisconewsgate.cisco.com
Future updates of this advisory, if any, will be placed on
Cisco's
worldwide website, but may or may not be actively announced
on
mailing lists or newsgroups. Users concerned about this
problem are
encouraged to check the above URL for any updates.
Revision History
================
+---------------------------------------+
| Revision | | Initial |
| 1.0 | 2007-Jan-10 | public |
| | | release |
+---------------------------------------+
Cisco Security Procedures
=========================
Complete information on reporting security vulnerabilities
in Cisco
products, obtaining assistance with security incidents, and
registering to receive security information from Cisco, is
available
on Cisco's worldwide website at
http://www.cisco.com/en/US/produ
cts/products_security_vulnerability_policy.html.
This includes instructions for press inquiries regarding
Cisco
security notices. All Cisco security advisories are
available at
http://www.cisco.com/g
o/psirt.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
iD8DBQFFpQoy8NUAbBmDaxQRAkL2AJ9t0g2ref0Qz0zC+41kP+4LmUHy9ACc
CeGy
uCpauyAde4NmqzpRfvUesm8=
=xGr+
-----END PGP SIGNATURE-----
|