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Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Manager
- To: bugtraq@xxxxxxxxxxxxxxxxx
- Subject: Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Manager
- From: Cisco Systems Product Security Incident Response Team <psirt@xxxxxxxxx>
- Date: Wed, 23 Feb 2011 11:00:06 -0500
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Cisco Security Advisory: Multiple Vulnerabilities in Cisco
TelePresence Manager
Advisory ID: cisco-sa-20110223-telepresence-ctsman
Revision 1.0
For Public Release 2011 February 23
+-----------------------------------------------------
Summary
=======
Multiple vulnerabilities exist in the Cisco TelePresence Manager.
This security advisory outlines the details of the following
vulnerabilities:
* Simple Object Access Protocol (SOAP) Authentication Bypass
* Java Remote Method Invocation (RMI) Command Injection
* Cisco Discovery Protocol Remote Code Execution
Duplicate Issue Identification in Other Cisco TelePresence Advisories
+--------------------------------------------------------------------
The Cisco Discovery Protocol remote code execution vulnerability
affects Cisco TelePresence endpoints, Manager, Multipoint Switch, and
Recording Server. The details about how the defect relates to each
component are covered in each associated advisory. The Cisco bug IDs
for these defects are as follows:
* Cisco TelePresence endpoint devices - CSCtd75754
* Cisco TelePresence Manager - CSCtd75761
* Cisco TelePresence Multipoint Switch - CSCtd75766
* Cisco TelePresence Recording Server - CSCtd75769
This advisory is posted at:
http://www.cisco.com/warp/public/707/cisco-sa-20110223-telepresence-ctsman.shtml
Affected Products
=================
These vulnerabilities affect the Cisco TelePresence Manager. Releases
of Cisco TelePresence Manager software prior to 1.7.0 may be affected
by one or more of the vulnerabilities listed in this advisory.
The following table provides information pertaining to affected
software releases:
+----------------------------------------+
| | Cisco Bug | Affected |
| Description | ID | Software |
| | | Releases |
|----------------+------------+----------|
| | | 1.2.x, |
| SOAP | | 1.3.x, |
| Authentication | CSCtc59562 | 1.4.x, |
| Bypass | | 1.5.x, |
| | | 1.6.x |
|----------------+------------+----------|
| | | 1.2.x, |
| Java RMI | | 1.3.x, |
| Command | CSCtf9085 | 1.4.x, |
| Injection | | 1.5.x, |
| | | 1.6.x |
|----------------+------------+----------|
| Cisco | | 1.2.x, |
| Discovery | | 1.3.x, |
| Protocol | CSCtd75761 | 1.4.x, |
| Remote Code | | 1.5.x, |
| Execution | | 1.6.2 |
+----------------------------------------+
Vulnerable Products
+------------------
Cisco TelePresence Manager devices that are running an affected
version of software are affected.
To determine the current version of software that is running on the
Cisco TelePresence Manager, establish an SSH connection to the device
and issue the show version active and the show version inactive
commands. The output should resemble the following example:
admin: show version active
Active Master Version: 1.7.0.0-471
Active Version Installed Software Options:
No Installed Software Options Found.
admin: show version inactive
Inactive Master Version: 1.6.0.0-342
Inactive Version Installed Software Options:
No Installed Software Options Found.
In the preceding example, the system has versions 1.6.0 and 1.7.0
loaded on the device, and version 1.7.0 is currently active. A device
is affected only by vulnerabilities that are in the active software
version.
Products Confirmed Not Vulnerable
+--------------------------------
No other Cisco products are currently known to be affected by these
vulnerabilities.
Details
=======
The Cisco TelePresence solution allows for immersive, in-person
communication and collaboration over the network with colleagues,
prospects, and partners, even when they are located in opposite
hemispheres.
This security advisory describes multiple, distinct vulnerabilities
in the Cisco TelePresence Manager. These vulnerabilities are
independent of each other.
SOAP Authentication Bypass
+-------------------------
An authentication bypass vulnerability exists that could allow a
remote, unauthenticated attacker to invoke arbitrary methods that are
available via the SOAP interface on the Cisco TelePresence Manager.
The attacker would need the ability to submit a malformed SOAP
request that is designed to trigger the vulnerability to the affected
device on TCP port 8080 or 8443.
An attacker must perform a three-way TCP handshake and establish a
valid session to exploit this vulnerability.
* Cisco TelePresence Manager: CSCtc59562 ( registered customers
only) has been assigned the Common Vulnerabilities and Exposures
(CVE) identifier CVE-2011-0380.
Java RMI Command Injection
+-------------------------
A command injection vulnerability exists in the Java RMI interface
that is exposed on the Cisco TelePresence Manager. The vulnerability
could allow an unauthenticated, remote attacker to perform a number
of actions on the device with elevated privileges. The attacker would
need to be able to submit a crafted request to the affected device on
TCP port 1100 or 32000.
An attacker must perform a three-way TCP handshake and establish a
valid session to exploit these vulnerabilities.
* Cisco TelePresence Manager: CSCtf97085 ( registered customers
only) has been assigned the CVE identifier CVE-2011-0381.
Cisco Discovery Protocol Remote Code Execution
+---------------------------------------------
A remote code execution vulnerability exists in Cisco TelePresence
Manager devices. This vulnerability could allow an unauthenticated,
adjacent attacker to trigger a buffer overflow condition. The
attacker would need the ability to submit a malicious Cisco Discovery
Protocol packet to the affected system to exploit this vulnerability.
Because Cisco Discovery Protocol operates at Layer 2, an attacker
must have a way to submit an Ethernet frame directly to an affected
device. This submission may be possible in situations in which the
affected system is part of a bridged network or connected to a
nonpartitioned device, such as a network hub.
* Cisco TelePresence Manager: CSCtd75761 ( registered customers
only) has been assigned the CVE identifier CVE-2011-0379.
Vulnerability Scoring Details
+----------------------------
Cisco has provided scores for the vulnerabilities in this advisory
based on the Common Vulnerability Scoring System (CVSS). The CVSS
scoring in this Security Advisory is done in accordance with CVSS
version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps determine urgency and priority of response.
Cisco has provided a base and temporal score. Customers can then
compute environmental scores to assist in determining the impact of
the vulnerability in individual networks.
Cisco has provided an FAQ to answer additional questions regarding
CVSS at:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to help compute the
environmental impact for individual networks at:
http://intellishield.cisco.com/security/alertmanager/cvss
* CSCtc59562 - SOAP Authentication Bypass
CVSS Base Score - 7.5
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Partial
Integrity Impact - Partial
Availability Impact - Partial
CVSS Temporal Score - 6.2
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
* CSCtf97085 - Java RMI Command Injection
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CVSS Temporal Score - 8.3
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
* CSCtd75761 - Cisco Discovery Protocol Remote Code Execution
CVSS Base Score - 7.9
Access Vector - Adjacent Network
Access Complexity - Medium
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CVSS Temporal Score - 6.5
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
Impact
======
Successful exploitation of the SOAP Authentication Bypass
vulnerability (CSCtc59562) could allow an unauthenticated, remote
attacker to issue SOAP requests to the affected system. This could
allow the attacker to perform multiple actions that should be
restricted to authenticated users.
Successful exploitation of the Java RMI Command Injection
Vulnerability (CSCtf97085) could allow an unauthenticated, remote
attacker to take complete control of the affected device.
Successful exploitation of the Cisco Discovery Protocol Remote Code
Execution vulnerability (CSCtd75761) could allow an unauthenticated,
adjacent attacker to take complete control of the affected system.
Software Versions 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.
Each row of the following Cisco TelePresence System Software table
defines a specific defect, the first fixed release, and the
recommended release to resolve all the security vulnerabilities
identified in this advisory as well as other vulnerabilities that are
not security related. Cisco recommends upgrading to a release equal
to or later than the release in the Recommended Releases column of
the table.
+--------------------------------------------------------------------+
| | | | First | Recommended |
| Vulnerability | Bug ID | Component | Fixed | Release |
| | | | Version | |
|----------------+------------+--------------+---------+-------------|
| SOAP | | Cisco | | |
| Authentication | CSCtc59562 | TelePresence | 1.7.0 | 1.7.1 |
| Bypass | | Manager | | |
|----------------+------------+--------------+---------+-------------|
| Java RMI | | Cisco | | |
| Command | CSCtf97085 | TelePresence | 1.7.0 | 1.7.1 |
| Injection | | Manager | | |
|----------------+------------+--------------+---------+-------------|
| Cisco | | | | |
| Discovery | | Cisco | | |
| Protocol | CSCtd75761 | TelePresence | 1.7.0 | 1.7.1 |
| Remote Code | | Manager | | |
| Execution | | | | |
+--------------------------------------------------------------------+
It is recommended that all components of the Cisco TelePresence
solution be upgraded to release 1.7.1 or greater.
Workarounds
===========
There are no known device-based or system-based workarounds for the
identified vulnerabilities.
Additional mitigations that can be deployed on Cisco devices in the
network are available in the Cisco Applied Intelligence companion
document for this advisory:
http://www.cisco.com/warp/public/707/cisco-amb-20110223-telepresence.shtml
Obtaining Fixed Software
========================
Cisco has released free software updates that address these
vulnerabilities. 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/en/US/docs/general/warranty/English/EU1KEN_.html
or as otherwise set forth at Cisco.com Downloads at:
http://www.cisco.com/public/sw-center/sw-usingswc.shtml
Do not contact psirt@xxxxxxxxx or security-alert@xxxxxxxxx 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 agreements 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 do not hold a Cisco
service contract, and customers who purchase through third-party
vendors but are unsuccessful in obtaining fixed software through
their point of sale should acquire 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: tac@xxxxxxxxx
Customers should have their product serial number available and be
prepared to give the URL of this notice as evidence of entitlement to
a free upgrade. Free upgrades for non-contract customers must be
requested through the TAC.
Refer to
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
for additional TAC contact information, including 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 vulnerabilities described in this advisory.
All vulnerabilities identified in this security advisory were
discovered internally by Cisco.
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-20110223-telepresence-ctsman.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-announce@xxxxxxxxx
* first-bulletins@xxxxxxxxxxxxxxx
* bugtraq@xxxxxxxxxxxxxxxxx
* vulnwatch@xxxxxxxxxxxxx
* cisco@xxxxxxxxxxxxxxxxx
* cisco-nsp@xxxxxxxxxxxxxxx
* full-disclosure@xxxxxxxxxxxxxxxxx
* comp.dcom.sys.cisco@xxxxxxxxxxxxxxxxxx
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 | 2011-February-23 | 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/products/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/go/psirt
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Copyright 2010-2011 Cisco Systems, Inc. All rights reserved.
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