[Full-disclosure] Cisco Security Advisory: Cisco TelePresence Recording Server Default Credentials for Root Account Vulnerability



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Cisco Security Advisory: Cisco TelePresence Recording Server Default
Credentials for Root Account Vulnerability

Advisory ID: cisco-sa-20110729-tp

Revision 1.0

For Public Release 2011 July 29 1600 UTC (GMT)

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Summary
=======

Cisco TelePresence Recording Server Software Release 1.7.2.0 includes
a root administrator account that is enabled by default. Successful
exploitation of the vulnerability could allow a remote attacker to
use these default credentials to modify the system configuration and
settings.

A workaround exists to mitigate this vulnerability.

Cisco has released free software updates that address this
vulnerability.

This advisory is posted at:
http://www.cisco.com/warp/public/707/cisco-sa-20110729-tp.shtml

Affected Products
=================

Vulnerable Products
+------------------

Cisco TelePresence Recording Server Software Release 1.7.2 is
affected by this vulnerability.

Note: Cisco TelePresence Recording Server Software Releases 1.7.0 and
1.7.1 are not affected by this vulnerability.

Products Confirmed Not Vulnerable
+--------------------------------

No other Cisco products are currently known to be affected by this
vulnerability.


Details
=======

The Cisco TelePresence solution allows an immersive, in-person
communication and collaboration over the network with colleagues,
prospects, and partners, even when they are located in opposite
hemispheres.

Cisco TelePresence Recording Server Software Release 1.7.2.0 includes
a root administrator account that is enabled by default. Successful
exploitation of this vulnerability could allow a remote attacker to
use these default credentials to modify the system configuration and
settings. An attacker could use this account to modify the system
configuration and settings by means of an SSH session.

This vulnerability is documented in Cisco Bug ID CSCtr76182, and has
been assigned the CVE identifier CVE-2011-2555.

Vulnerability Scoring Details
=============================

Cisco has provided scores for the vulnerability 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

* CSCtr76182 - Root account enabled with default password

CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete

CVSS Temporal Score - 8.7
Exploitability - High
Remediation Level - Official-Fix
Report Confidence - Confirmed


Impact
======

Successful exploitation of this vulnerability could allow a remote
attacker to use these default credentials to modify the system
configuration and settings.


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.

This vulnerability has been corrected in Cisco TelePresence Recording
Server Software Release 1.7.2.1.

Note: Cisco TelePresence Recording Server Software Release 1.7.2.1 is
a re-build and no other changes were made on this release. Cisco TelePresence
Recording Server Software Releases 1.7.0 and 1.7.1 are not affected by
this vulnerability.

Workarounds
===========

A workaround exists to mitigate and fix this vulnerability. The
workaround requires manual intervention on the affected system.
Please contact the Cisco Technical Assistance Center (TAC) for
instructions on how to implement this workaround. Customers are
advised to migrate to Cisco TelePresence Recording Server software
version 1.7.2.1.

Additional mitigations that can be deployed on Cisco devices within
the network are available in the Cisco Applied Intelligence companion
document for this advisory:
http://www.cisco.com/warp/public/707/cisco-amb-20110729-tp.shtml


Obtaining Fixed Software
========================

Cisco has released free software updates that address this
vulnerability. 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 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
=====================================

Potential exploitation was reported directly to Cisco by a single
customer. The PSIRT is not aware of any widespread exploitation or
public announcements of this vulnerability.


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-20110729-tp.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-July-29 | 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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