Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1391 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 Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-0750 Original Bulletin: http://tools.cisco.com/security/center/viewAlert.x?alertId=38969 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability Alert Cisco HCS Administrative Web Interface Arbitrary Command Execution Vulnerability Threat Type: CWE-20: Input Validation IntelliShield ID: 38969 Version: 1 First Published: 2015 May 22 17:55 GMT Last Published: 2015 May 22 17:55 GMT Port: Not available CVE: CVE-2015-0750 Urgency: Unlikely Use Credibility: Confirmed 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. Description 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. Warning Indicators 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. IntelliShield Analysis To exploit this vulnerability, an attacker must authenticate to the targeted device. This access requirement may reduce the likelihood of a successful exploit. Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available. Vendor Announcements Cisco has released bug ID CSCut02786 for registered users, which contains additional details and an up-to-date list of affected product versions. Impact 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. Technical Information 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. Safeguards 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. Patches/Software 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 tac@cisco.com. Alert History Initial Release Product Sets The security vulnerability applies to the following combinations of products. Primary 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 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVWO7zhLndAQH1ShLAQIs2w//Rts3fReFTzlxToIu/PFYPgad800ope91 IFsZPrSr6QF2tia5hHQ5xX5g2izsICaiuvOp0L4VAqV6Zn5xSaX7MOVdxz5H9/3v fM9LQzOS2TY7+v6sY5UCs3jEfPUqR+4Bm7t0t85Oo5dNAkHSCEhUXdricGJX5A+d fLf48H6rHUHfVaUdv5WDVhCuh3cQM6tS2PnAbO4cRIcD4uQw8BpsRlT+gXVXoUyH udjc9tvVZ465FkHNOrbpGIf5afkKxd8F+Ug4fgYlDVxrcWBNOHd+FxfFuq6dATMY kePXhce/i7oKgt93jM+sdk3Zg7KlwiKuQhCEYEWglZH5IxeR0DbohRrrusVSxpjk WIUSfTWob4iqKVhlbrQ8pYjGKbR9+NuznUHembfcv7haPOuPqePA+2DYHqXMXl1U /gWrOp2UqrY53p6yY8ATVAXtBsEtpkFRW7EW1w8/b/6uPClj1Sfp0/INhwcrUSQO UFkSRUkE4y10x1TqEDa2bz0WgiK0YH/NxgEUUT/9j+/KgoiyjwqrcAREIebJWvDu pQ3M9Bp7DZfWtJGCExz+eGiuRqcf+HHg1Ph23YnN8z6gBbubHyx9gVMOanqXY2p7 /3blTjoBJQACQxiQfVG4JycahmgmMgRDowi5Nw4iRFD8ss8PmxN70bkUQX08AEBe VmLa3Kqzfo8= =OEHX -----END PGP SIGNATURE-----