Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1273 Cisco Unified Communications Manager root Shell Access Local Privilege Escalation Vulnerability 12 May 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Unified Communications Manager Publisher: Cisco Systems Operating System: Cisco VMware ESX Server Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-0717 Original Bulletin: http://tools.cisco.com/security/center/viewAlert.x?alertId=38763 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability Alert Cisco Unified Communications Manager root Shell Access Local Privilege Escalation Vulnerability Threat Type: CWE-264: Permissions, Privileges, and Access Control IntelliShield ID: 38763 Version: 1 First Published: 2015 May 08 21:01 GMT Last Published: 2015 May 08 21:01 GMT Port: Not available CVE: CVE-2015-0717 Urgency: Unlikely Use Credibility: Confirmed Severity: Moderate Damage CVSS Base: 6.3 CVSS Calculator CVSS Version 2.0 CVSS Temporal: 5.2 Version Summary: Cisco Unified Communications Manager contains a vulnerability that could allow an authenticated, local attacker to execute arbitrary commands as the root user. Updates are available. Description A vulnerability in the local read file of the Cisco Unified Communications Manager could allow an authenticated, local attacker to execute commands and obtain an interactive Linux shell as the root user. The vulnerability is due to a failure to properly sanitize user input. An attacker could exploit this vulnerability by inserting Linux shell commands into a parameter using common techniques. A successful exploit could allow the attacker to execute any command on the Linux shell as the root user, which could result in a complete system compromise. Cisco has confirmed the vulnerability and released software updates. Warning Indicators At the time this alert was first published, Cisco Unified Communications Manager 10.0(1.10000.12) was vulnerable. Other releases of Cisco Unified Communications Manager may also be affected. IntelliShield Analysis To exploit this vulnerability, an attacker must authenticate and have local access to the targeted device. These access requirement decreases 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 CSCut19546 for registered users, which contains additional details and an up-to-date list of affected product versions. Impact An authenticated, local attacker could exploit this vulnerability to execute arbitrary commands and gain complete access to the underlying operating system of an affected device by obtaining an interactive Linux shell as the root user. A successful exploit could be used to conduct further attacks. Technical Information The vulnerability is due to improper sanitization of user-supplied input processed by an affected device. An authenticated, local attacker could exploit this vulnerability by inserting Linux shell commands into a parameter on a targeted device. A successful exploit could allow the attacker to execute any command on the Linux shell as the root user, which could result in a complete system compromise. Safeguards Administrators are advised to apply the appropriate updates. Administrators are advised to allow only trusted users to access local systems. 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 Unified Communications Manager 10.0 (1.10000.12) Associated Products: N/A - --------------------------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 iQIVAwUBVVFYRhLndAQH1ShLAQIiTQ//dgWTwzQiWmOt/X4S4MbAi04h+hS/0+TO TpxQUoWN3NB3Gzs6LOvZitReniAJZH7CmaNoRvNSuEy6qSCRJINPx9VhgHxJlnfp V0vmVI2gd+uEoXPIM30ppMnQxNuYb3+7eH8uqapO+BxKTBedE9moNy/K2Fa7cY6I Ujw6bWR+pFnDQpIDJPl8szWk/wep7yS1tFlnqzCnw3TgrbjfQhSF/Hqycf+fUaQB SwBu/8/L+lgOjpob9YFNVNqG5Dvt4PPGOul5CDDcBsgPR+f1BCgDQoRQZNSO/L/j 1+rjHuYBCJSdOcC2CrSm7xzqX6dALvXG/JylDc012Y7d5AWMhpU1QW7kfc8xx1De sl1JJ030F/MWGINJfGBGo0lMXc8u9b+wEdnjJIdLi7Ylj3zRCbtgoXxs9MpsA0pd lwMYSA3Q92mtntYWuMs7ZvgqNCpp6ADhpfPo5SS/kaBGYgP5XJc2EUHXApFqkrDw wr586GERqiOSKE17iwM9hRD5Q27aZcsTqeqI5+Bgymn8ODp5+c6XfLgBMy2GsFTI 2QJ7EZnmNoBMFe3jVZMOokTKHEMrA5bkAnEtOsqetzWigSG9Jm92nTFEhsZKY6te wwGrpiriHuHBaZHj1V20slQjfbOzQ4kz8jDDjOItePMGYGirpMRdO87HM52CLwb3 2AGXCPWXzIk= =zKAK -----END PGP SIGNATURE-----