Cisco Security Advisory
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AV:A/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C
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Cisco TelePresence TC and TE Software contains the following vulnerabilities:
- Cisco TelePresence TC and TE Software Authentication Bypass Vulnerability
- Cisco TelePresence TC and TE Software Crafted Packets Denial of Service Vulnerability
Successful exploitation of the Cisco TelePresence TC and TE Software Authentication Bypass Vulnerability could allow an attacker to bypass system authentication and access the device with the privileges of the root user.
Successful exploitation of the Cisco TelePresence TC and TE Software Crafted Packets Denial of Service Vulnerability could allow an attacker to restart several processes and possibly trigger a reload of the affected system.
Cisco has released software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are not available. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150513-tc
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Vulnerable Products
The following products are affected when they are running a vulnerable software version:
- Cisco TelePresence MX Series
- Cisco TelePresence System EX Series
- Cisco TelePresence Integrator C Series
- Cisco TelePresence Profiles Series
- Cisco TelePresence Quick Set Series
- Cisco TelePresence System T Series
- Cisco TelePresence VX Clinical Assistant
Note: Cisco TelePresence TE Software is affected by this vulnerability only when running on Cisco TelePresence System EX Series devices.
There is no fix available for Cisco TelePresence System T Series.
Cisco TelePresence System T Series is end-of-life. Cisco TelePresence System T Series customers are encouraged to contact their Cisco representative for available replacements.Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Cisco TelePresence TC and TE Software Authentication Bypass Vulnerability
A vulnerability in the authentication code of Cisco TelePresence TC and TE Software could allow an unauthenticated attacker within the broadcast or collision domains, or with physical access to the system, to bypass authentication and obtain root user access to the affected system.
The vulnerability is due to the improper implementation of authentication and authorization controls for internal services. An attacker could exploit this vulnerability by connecting to the affected service.
This vulnerability is documented in Cisco bug ID CSCub67651 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2014-2174
Cisco TelePresence TC and TE Software Crafted Packets Denial of Service Vulnerability
A vulnerability in the network drivers of Cisco TelePresence TC and TE Software could allow an unauthenticated, remote attacker to cause several processes to restart and possibly reload the affected system.
The vulnerability is due to insufficient implementation of flood controls. An attacker could exploit this vulnerability by sending crafted IP packets at a high rate.
This vulnerability is documented in Cisco bug ID CSCuj68952 (registered customers only) and has been assigned CVE ID CVE-2015-0722
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There are no workarounds that mitigate these vulnerabilities.
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When considering software upgrades, customers are advised to consult the Cisco Security Advisories, Responses, and Alerts archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
The Cisco TelePresence TC and TE Software Authentication Bypass Vulnerability is fixed in Cisco TelePresence TC release 7.1 and later. There is no fix for Cisco TelePresence TE Software. Customer running Cisco TelePresence TE Software should upgrade to Cisco TelePresence TC release 7.1 or later.
There is no fix available for Cisco TelePresence System T Series.
Cisco TelePresence System T Series is end-of-life. Cisco TelePresence System T Series customers are encouraged to contact their Cisco representative for available replacement.
The is fixed Cisco TelePresence TC and TE Software Crafted Packets Denial of Service Vulnerability is fixed in Cisco TelePresence TC release 7.3.2 and later. There is no fix for Cisco TelePresence TE Software. Customer running Cisco TelePresence TE Software should upgrade to Cisco TelePresence TC release 7.3.2 or later.
Cisco TelePresence TC release 7.3.2 is the release that includes the fixes for both the vulnerabilities described in this advisory.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Both vulnerabilities described in this advisory were found during internal tests and product security reviews.
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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.
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Show LessRevision 1.0 2015-May-13 Initial public release.
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