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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2514 Cisco FirePOWER 7000 and Cisco FirePOWER 8000 Series Inspection Engine Stall Vulnerability 29 September 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco FirePOWER Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-6307 Original Bulletin: http://tools.cisco.com/security/center/viewAlert.x?alertId=41131 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability Alert Cisco FirePOWER 7000 and Cisco FirePOWER 8000 Series Inspection Engine Stall Vulnerability Threat Type: CWE-399: Resource Management Errors IntelliShield ID: 41131 Version: 1 First Published: 2015 September 25 15:19 GMT Last Published: 2015 September 25 15:19 GMT Port: Not available CVE: CVE-2015-6307 Urgency: Unlikely Use Credibility: Confirmed Severity: Mild Damage CVSS Base: 6.1 CVSS Temporal: 5.0 Version Summary: Cisco FirePOWER 7000 Series and Cisco FirePOWER 8000 Series devices contain a vulnerability that could allow an unauthenticated, adjacent attacker to bypass security restrictions or cause a denial of service condition. Updates are available. Description A vulnerability in FireSIGHT System Software for Cisco FirePOWER 7000 Series and Cisco FirePOWER 8000 Series devices could allow an unauthenticated, adjacent attacker to cause the inspection engine to stop processing packets. Depending on the affected system configuration, this may cause traffic not to be inspected or to be dropped. The vulnerability is due to improper parsing of crafted packets. An attacker could exploit this vulnerability by sending crafted packets to the affected system. Cisco has confirmed the vulnerability and released software updates. Warning Indicators At the time this alert was first published, Cisco FireSIGHT System Software Release 5.4.0.1 running on Cisco FirePOWER 7000 and 8000 Series devices was vulnerable. Later releases of Cisco FireSIGHT System Software may also be vulnerable. IntelliShield Analysis To exploit this vulnerability, an attacker must have access to the same broadcast or collision domain as 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. Cisco Sourcefire 7000 and Cisco Sourcefire 8000 Series devices have been renamed Cisco FirePOWER 7000 and Cisco FirePOWER 8000 Series. Vendor Announcements Cisco has released bug ID CSCuu10871 for registered users, which contains additional details and an up-to-date list of affected product versions. Impact An unauthenticated, adjacent attacker could exploit this vulnerability to cause the inspection engine on an affected device to stop processing packets, which could cause traffic to bypass inspection or be dropped. Technical Information Technical information is not available. 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 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 FireSIGHT System Software 5.4 .0.1 Associated Products: N/A 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 iQIVAwUBVgnUQn6ZAP0PgtI9AQLZ8A/+LUis3a9atVALi43WjEvV1klmiufefzrI JQxodTyJfchQtZBFtkpCMYbgPayj3SPehSyz0Nh7+OBlnzngBPHPA0kwsTRNN2Z4 JUiAKEkw4c2v6n1jhDqtVxRn+crs507aKYMAk5rEg+OoI7/54wuammduQFe6SZs8 kAAJVFBlGk4U+WDOtPorKpbj0FmKifvCMwzup7dj/Ul3SKtli5uk8ya9Zn3Rzqfn 23Sr6JHFfTNkzJ3GT+jw9VhYAv8OemIbtbNL2rLHeIys2yJVhjCoxbiWn/wwow5d rvkF5TpVWiiw5M/DetxmsPs7lqjSgvPqUMKS/QfGlZzQt5WXPZw1LbmzH9MkVpyH 7Fy5LUJCbZJqSQiIDR2vmhsB8p0/3OGzvjBTjNH0a/aHFS86y+Ul0GkqoVGf8bP2 wZ4OixngmuhGUBpCxC1nD/yJPpdIV9GAVn6ZS1ThVx8XsZFtepikTi+3GB+Vx5s3 soh1qzOZ6VX+dj4E48GFvKSkge5FRXGmrw4I/VKRF4CU5Iol0YaH8XqaaTdYFlkD CHtyhR2Pg+o8OnMn6F/UzlJvE6mZfADLtqEH/VzIjNClSaM77y+GZ7B74IpkHq4e a1vwwQoKtxOQ6i8g51XehMFqSwOq4FhspvxNbDpw4wtDHtfld24+kJi1NX2d4pDo wh8Fmrf7sFU= =Q6Ko -----END PGP SIGNATURE-----