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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0652 Multiple vulnerabilities identified in Cisco Wireless Residential Gateway 10 March 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Wireless Residential Gateway Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-1326 CVE-2016-1325 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-cmdos https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-rgid Comment: This bulletin contains two (2) Cisco Systems security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Advisory Cisco Wireless Residential Gateway with EDVA Denial of Service Vulnerability High Advisory ID: cisco-sa-20160309-cmdos Published: 2016 March 9 16:00 GMT Version 1.0: Final CVSS Score: Base - 7.8 Workarounds: No workarounds available Cisco Bug IDs: CSCup48105 CVE-2016-1326 CWE-399 Summary A vulnerability in the web-based administration interface of Cisco Model DPQ3925 8x4 DOCSIS 3.0 Wireless Residential Gateway with EDVA could allow an unauthenticated, remote attacker to cause the device to become unresponsive and restart, creating a denial of service (DoS) condition. The vulnerability is due to improper handling, processing, and termination of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to management-enabled interfaces of an affected system. Cisco has released software updates to its service provider customers that address the vulnerability described in this advisory. Prior to contacting Cisco TAC, customers are advised to contact their service providers to confirm the software deployed by the service provider includes the fix that addresses this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-cmdos Affected Products Vulnerable Products Cisco Model DPQ3925 8x4 DOCSIS 3.0 Wireless Residential Gateway with EDVA is vulnerable. Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Workarounds There are no workarounds that address this vulnerability. Fixed Software Cisco has released software updates to its service provider customers that address the vulnerability described in this advisory. Prior to contacting Cisco TAC, customers are advised to contact their service providers to confirm the software deployed by the service provider includes the fix that addresses this vulnerability. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades. When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses 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 upgrade 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. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC): http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Exploitation and Public Announcements 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. Source Cisco would like to thank Chris Watts of Tech Analysis for reporting this vulnerability. URL http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-cmdos Revision History Version Description Section Status Date 1.0 Initial public release. Final 2016-March-09 Legal Disclaimer THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products. - ---------------------------------------------------------------------------- Cisco Security Advisory Cisco Wireless Residential Gateway Information Disclosure Vulnerability High Advisory ID: cisco-sa-20160309-rgid Published: 2016 March 9 16:00 GMT Version 1.0: Final CVSS Score: Base - 7.8 Workarounds: No workarounds available Cisco Bug IDs: CSCus49493 CSCus49506 CVE-2016-1325 CWE-200 Summary A vulnerability in the web-based administration interface of the Cisco Wireless Residential Gateway could allow an unauthenticated, remote attacker to access sensitive information on the affected device. The vulnerability is caused by improper access restrictions implemented on the affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. Cisco has released software updates to its service provider customers that address the vulnerability described in this advisory. Prior to contacting Cisco TAC, customers are advised to contact their service providers to confirm the software deployed by the service provider includes the fix that addresses this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-rgid Affected Products Vulnerable Products The following Cisco Wireless Residential Gateway products are vulnerable: Cisco DPC3941 Wireless Residential Gateway with Digital Voice Cisco DPC3939B Wireless Residential Voice Gateway Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Workarounds There are no workarounds that address this vulnerability. Fixed Software Cisco has released software updates to its service provider customers that address the vulnerability described in this advisory. Prior to contacting Cisco TAC, customers are advised to contact their service providers to confirm the software deployed by the service provider includes the fix that addresses this vulnerability. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades. When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses 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 upgrade 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. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC): http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Exploitation and Public Announcements 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. Source This vulnerability was reported to Cisco by Kyle Lovett. Cisco would like to thank Kyle Lovett for reporting this vulnerability. URL http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-rgid Revision History Version Description Section Status Date 1.0 Initial public release. Final 2016-March-09 Legal Disclaimer THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products. - --------------------------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 iQIVAwUBVuD9yn6ZAP0PgtI9AQLYxw//TJpOBHmWJ95G22L10ySKesMoJTX3w+XF 9y8jM0nwrx5qLTaeP9w0z/IJsGprf56BRkgN6+HW7OjqqrJSCgRD6E3Qms/Tyqwl QM5zP/fXbUdxcinUgo96dW9zjkHpYu4jQNz4jTjzY2sZC/lYcQrjwfdk4AuEeryQ 2Lhxjq2nv+kA52FHbrtnVkKcdYZECoq8sIrdx3IxV8Y5kCKb18f5LWf1N5XX3WFz IjZmbRBSGQp4uBaBMXrDMJwGfrhv4a/9++5Hb+RpYXmrA0ABxWUVazbzQrfm46TN galudze0+0kM1+PKzxNSC98Dnm4ZPtcHZ+4+k7IhHOuEV1dz4/hafTEBesijsSDf WLY203MhauUtPACmTyDTmpI1hiy/HwDHATIjbTGb/4gpM4xfNjBO85wJzrOmYEAo 8Yft8CYX/98IMupn+prTKLnXrmJ9BnfKFWEhAK6VFvPvTOB6f4oWTZQ6rS2b2ENe eeOUQtQMWQq9+I9tIuAsOcwUp1fKDDaZmGLUcwMbmGvD2PR+ceVDEJSkT+cS8LFX HinOftW8Z9PsVC3HDY9Hor/tqsJbDzin46dlHleK2ny4jY3QDoXmr+O6d1+Ri+Rm bsXWJ5u022fKgrFPt/bALtdLFlFJ4epCIrfIDl1aXeJcLwwjvpdLqtpwwZqtXVMh Sm6fCJeiiy4= =+6dD -----END PGP SIGNATURE-----