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AUSCERT External Security Bulletin Redistribution
ESB-2014.1582
Cisco TelePresence System MXP Series Software Denial of
Service Vulnerability
12 September 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Telepresence System MXP Series
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2014-3362
Reference: ESB-2014.1528
Original Bulletin:
http://tools.cisco.com/security/center/viewAlert.x?alertId=35674
Comment: The vendor has not currently released patches to address this
vulnerability, but has provided a number of mitigation steps.
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Vulnerability Alert
Cisco TelePresence System MXP Series Software Denial of Service Vulnerability
Threat Type: CWE-399: Resource Management Errors
IntelliShield ID: 35674
Version: 1
First Published: 2014 September 11 17:46 GMT
Last Published: 2014 September 11 17:46 GMT
Port: Not available
CVE: CVE-2014-3362
BugTraq ID: 69737
Urgency: Unlikely Use Urgency: 1-Weakness 2-Unlikely Use 3-Possible Use
4-Probable Use 5-Incidents Reported
Credibility: Confirmed Credibility: 1-Very Low 2-Low 3-Corroborated 4-Highly
Credible 5-Confirmed
Severity: Mild Damage Severity: 1-No Damage 2-Harassment 3-Mild Damage
4-Moderate Damage 5-Heavy Damage
CVSS Base: 7.8 CVSS Calculator
CVSS Version 2.0
CVSS Temporal: 7.4
Version Summary: Cisco TelePresence System MXP Series Software contains a
vulnerability that could allow an unauthenticated, remote attacker to cause a
denial of service condition. Updates are not available.
Description
A vulnerability in Cisco TelePresence System MXP Series Software could allow
an unauthenticated, remote attacker to cause an affected system to become
unresponsive to management session requests via Telnet.
The vulnerability is due to a memory leak when management flows are created.
An attacker could exploit this vulnerability by creating several management
session requests.
Cisco has confirmed the vulnerability in a security notice; however, software
updates are not available.
Warning Indicators
Cisco TelePresence System Edge MXP Series F9.3.3 and prior are vulnerable.
IntelliShield Analysis
To exploit this vulnerability, an attacker must determine whether the Telnet
service is running on a targeted device.
All MXP products have reached end of life (EOL) and end of software support
(EoSW). Customer are advised to review the EOL/EoSW support notice at the
following link: End-of-Sale and End-of-Life Announcement for the Cisco
TelePresence System Edge 75/95 MXP
Vendor Announcements
Cisco has released a security notice at the following link: CVE-2014-3362
Customers are advised to consult Cisco bug ID CSCuo63677 for a complete list
of affected product versions.
Impact
An unauthenticated, remote attacker could exploit this vulnerability to cause
an affected system to become unresponsive, resulting in a denial of service
(DoS) condition.
Technical Information
The vulnerability is due to improper handling of management flows by a system
running an affected version of Cisco TelePresence System MXP Series Software.
An unauthenticated, remote attacker could exploit this vulnerability by
creating several management session requests via Telnet to a targeted system.
A successful exploit could allow the system to become unresponsive, resulting
in a DoS condition.
Safeguards
Administrators can help protect affected systems from external attacks by
using a solid firewall strategy.
Administrators may consider disabling the Telnet port on affected systems.
Administrators may consider using IP-based access control lists (ACLs) to
allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
Patches/Software
Software updates are not available.
Alert History
Initial Release
Product Sets
The security vulnerability applies to the following combinations of products.
Primary Products:
Cisco Cisco TelePresence System F9.0.1 Base | F9.0.2 Base |
Edge MXP Series Base F9.3.1 Base | F9.3.3
Associated Products:
N/A
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are
highlighted by analysts in the Cisco Threat Operations Center and represent a
subset of the comprehensive content that is available through Cisco Security
IntelliShield Alert Manager Service. This customizable threat and
vulnerability alert service provides security staff with access to timely,
accurate, and credible information about threats and vulnerabilities that may
affect their environment.
LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual
users; users may value alerts differently based upon their network
configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED
THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED
THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION
IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE
TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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