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AUSCERT External Security Bulletin Redistribution
Vulnerability Alert Cisco HCS Administrative Web Interface
Arbitrary Command Execution Vulnerability
26 May 2015
AusCERT Security Bulletin Summary
Product: Cisco Hosted Collaboration Solution (HCS)
Publisher: Cisco Systems
Operating System: Cisco
VMware ESX Server
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
CVE Names: CVE-2015-0750
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Cisco HCS Administrative Web Interface Arbitrary Command Execution
Threat Type: CWE-20: Input Validation
IntelliShield ID: 38969
First Published: 2015 May 22 17:55 GMT
Last Published: 2015 May 22 17:55 GMT
Port: Not available
Urgency: Unlikely Use
Severity: Moderate Damage
CVSS Base: 4.0
CVSS Temporal: 3.3
Version Summary: Cisco Hosted Collaboration Solution contains a vulnerability
that could allow an authenticated, remote attacker to execute arbitrary
commands. Updates are available.
A vulnerability in the administrative web interface of Cisco Hosted
Collaboration Solution (HCS) could allow an authenticated, remote attacker to
execute arbitrary commands on the affected system and on the devices managed
by the affected system.
The vulnerability is due to improper user input validation. An attacker could
exploit this vulnerability by crafting input into the affected fields of the
web interface on a targeted device. A successful exploit could allow the
attacker to execute arbitrary commands on the device or on other devices
managed by the device, which could be leveraged to conduct further attacks.
Cisco has confirmed the vulnerability and released software updates.
At the time this alert was first published, Cisco HCS 10.6(1) and prior were
vulnerable. Later versions of Cisco HCS may also be vulnerable.
To exploit this vulnerability, an attacker must authenticate to the targeted
device. This access requirement may reduce the likelihood of a successful
Cisco indicates through the CVSS score that functional exploit code exists;
however, the code is not known to be publicly available.
Cisco has released bug ID CSCut02786 for registered users, which contains
additional details and an up-to-date list of affected product versions.
An authenticated, remote attacker could exploit this vulnerability to execute
arbitrary commands on an affected device or on other devices managed by the
device, which could be leveraged to conduct further attacks.
The vulnerability is due to insufficient validation of user-supplied input
submitted to the administrative web interface of an affected device.
An authenticated, remote attacker could exploit this vulnerability by crafting
input into the affected fields of the web interface on a targeted device. A
successful exploit could allow the attacker to execute arbitrary commands on
the device or on other devices managed by the affected device, which could be
leveraged to conduct further attacks.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to allow only privileged users to access
administration or management systems.
Administrators are advised to monitor affected systems.
Cisco customers with active contracts can obtain updates through the Software
Center at the following link: Cisco. Cisco customers without contracts can
obtain upgrades by contacting the Cisco Technical Assistance Center at
1-800-553-2447 or 1-408-526-7209 or via email at email@example.com.
The security vulnerability applies to the following combinations of products.
Cisco Cisco Hosted Collaboration Solution 8.6(2) Base | 9.0(1) Base | 8.0(2)
Base | 8.6(1) Base | 9.1(1) Base | 9.2(1) Base | 9.5(1) Base | 10.0(1) Base |
10.1(1) Base | 10.1(2) Base | 10.5(1) Base | 10.6(1) Base
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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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