Multiple vulnerabilities exist within the Cisco TelePresence Multipoint Switch. This security advisory outlines details of the following vulnerabilities: Unauthenticated Java Servlet Access Unauthenticated Arbitrary File Upload Cisco Discovery Protocol Remote Code Execution Unauthorized Servlet Access Java RMI Denial of Service Real-Time Transport Control Protocol Denial of Service XML-Remote Procedure Call (RPC) Denial of Service Duplicate Issue Identification in Other Cisco TelePresence Advisories The Unauthenticated Java Servlet Access vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCtf42008 Cisco TelePresence Recording Server - CSCtf42005 The Unauthenticated Arbitrary File Upload vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCth61065 Cisco TelePresence Recording Server - CSCth85786 The Cisco Discovery Protocol Remote Code Execution vulnerability affects Cisco TelePresence endpoint devices, Manager, Multipoint Switch, and Recording Server. The defect as related to each component is 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 The Java RMI Denial of Service vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCtg35830 Cisco TelePresence Recording Server - CSCtg35825 This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctms.
Multiple vulnerabilities exist within the Cisco TelePresence Multipoint Switch. This security advisory outlines details of the following vulnerabilities:
The Unauthenticated Java Servlet Access vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows:
The Unauthenticated Arbitrary File Upload vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows:
The Cisco Discovery Protocol Remote Code Execution vulnerability affects Cisco TelePresence endpoint devices, Manager, Multipoint Switch, and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows:
The Java RMI Denial of Service vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect as related to each component is covered in each associated advisory. The Cisco bug IDs for these defects are as follows:
This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctms.
These vulnerabilities affect the Cisco TelePresence Multipoint Switch. All releases of Cisco TelePresence System Software prior to 1.7.1 are affected by one or more of the vulnerabilities listed in this advisory.
The following table provides information pertaining to affected software releases:
|
Description |
Cisco Bug ID |
Affected Software Releases |
|---|---|---|
|
Unauthenticated Java Servlet Access |
CSCtf01253 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Unauthenticated Java Servlet Access |
CSCtf42008 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Unauthenticated Arbitrary File Upload |
CSCth61065 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Cisco Discovery Protocol Remote Code Execution |
CSCtd75766 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Unauthorized Servlet Access |
CSCtf97164 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Java RMI Denial of Service |
CSCtg35825 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
Real-Time Transport Control Protocol Denial of Service |
CSCth60993 |
1.0.x, 1.1.x, 1.5.x, 1.6.x |
|
XML-RPC Denial of Service |
CSCtj44534 |
1.0.x, 1.1.x, 1.5.x, 1.6.x, 1.7.0, 1.7.1 |
Cisco TelePresence Multipoint Switch devices running an affected version of software are affected.
To determine the current version of software running on the Cisco TelePresence Multipoint Switch, 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: 1.6.1.0-336 Inactive Version Installed Software Options: No Installed Software Options Found.
In the preceding example, the system has versions 1.6.1 and 1.7.0 loaded on the device and version 1.7.0 is currently active. A device is only affected by vulnerabilities in the active software version.
No other Cisco products are currently known to be affected by these vulnerabilities
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 Multipoint Switch. These vulnerabilities are independent of each other.
A number of sensitive Java Servlets delivered via a Java Servlet framework in the Cisco Telepresence Multipoint Switch could allow a remote, unauthenticated attacker to perform actions that should be restricted to administrative users only. The attacker would need the ability to submit a crafted request to an affected device on TCP port 80, 443, or 8080.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit these vulnerabilities.
An arbitrary file upload vulnerability exists in the administrative web interface of the Cisco TelePresence Multipoint Switch. An unauthenticated, remote attacker could submit a crafted request to an affected device that would allow for the placement of attacker-controlled content in arbitrary locations on the device. The attacker would need the ability to submit a crafted request to an affected device on TCP port 80 or 443.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
A remote code execution vulnerability exists in Cisco TelePresence Multipoint Switch devices. An unauthenticated, adjacent attacker could exploit the vulnerability by submitting a malicious Cisco Discovery Protocol packet to the affected system. When parsed, the malicious packet may trigger a buffer overflow.
Because Cisco Discovery Protocol works at the data link layer (Layer 2), an attacker must have a way to submit an Ethernet frame directly to an affected device. This may be possible in situations where the affected system is part of a bridged network or connected to a nonpartitioned device such as a network hub.
An unauthorized servlet access issue exists in the administrative web interface of Cisco TelePresence Multipoint Switch devices. This issue could allow a remote, authenticated attacker with unprivileged access to cause a denial of service condition on an affected device. The attacker would need the ability to submit a crafted request to an affected device on TCP port 80 or 443.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
A denial of service vulnerability exists in Cisco TelePresence Multipoint Switch devices due to a failure to properly restrict access to the RMI interface of the Java Servlet framework. An unauthenticated, remote attacker could trigger an out-of-memory condition on the servlet host by issuing a series of crafted requests. The attacker would need the ability to communicate to an affected device on TCP port 8999.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
A Real-Time Transport Control Protocol (RTCP) denial of service vulnerability exists within Cisco TelePresence Multipoint Switch devices. An unauthenticated, remote attacker could send a malicious RTCP packet to a listening RTCP control port to crash the call control process. The attacker would need to have the ability to communicate to an affected device on a UDP port that was randomly selected and negotiated during call setup.
Because the vulnerability is within a UDP-based service, the attacker would not be required to perform a handshake prior to making the crafted request. This could allow the attacker to spoof the source address of an attack.
An XML-RPC denial of service vulnerability exists in Cisco TelePresence Multipoint Switch devices. A remote, unauthenticated attacker could send a malicious request to an affected device to trigger a crash of the call geometry process. The attacker would need the ability to communicate to an affected device on TCP port 9000.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
There are no device- or system-based workarounds for the identified vulnerabilities.
Additional mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Intelligence companion document for this Advisory:
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 of the security issues identified in this advisory as well as other non-security related issues. Cisco recommends upgrading to a release equal to or later than the release in the Recommended Release column of the table.
|
Vulnerability |
Bug ID |
Component |
First Fixed Version |
Recommended Release |
|---|---|---|---|---|
|
Unauthenticated Java Servlet Access |
CSCtf01253 |
CTMS |
1.7.0 |
1.7.1 |
|
CSCtf42008 |
CTMS |
1.7.0 |
1.7.1 |
|
|
Unauthenticated Arbitrary File Upload |
CSCth61065 |
CTMS |
1.7.0 |
1.7.1 |
|
Cisco Discovery Protocol Remote Code Execution |
CSCtd75766 |
CTMS |
1.7.0 |
1.7.1 |
|
Unauthorized Servlet Access |
CSCtf97164 |
CTMS |
1.7.0 |
1.7.1 |
|
Java RMI JBOSS Denial of Service |
CSCtg35825 |
CTMS |
1.7.0 |
1.7.1 |
|
Real-Time Transport Control Protocol Denial of Service |
CSCth60993 |
CTMS |
1.7.0 |
1.7.1 |
|
XML-RPC Denial of Service |
CSCtj44534 |
CTMS |
1.7.2 – Estimated Availability is End of March 2011 |
1.7.2 – Estimated Availability is End of March 2011 |
It is recommended that all components of the Cisco TelePresence solution be upgraded to 1.7.1 or greater.
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory.
All vulnerabilities identified within this Cisco Security Advisory were discovered internally by Cisco.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
|
Revision 1.1 |
2011-March-9 |
Advisory updated to provide new information regarding CSCtj44534 (CVE-2011-0390) and to provide estimated availability for software that will resolve this issue. |
|
Revision 1.0 |
2011-February-23 |
Initial public release. |
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