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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0770 Cisco Application-Hosting Framework Multiple Vulnerabilities 23 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Application-Hosting Framework Publisher: Cisco Systems Operating System: Cisco Impact/Access: Modify Arbitrary Files -- Existing Account Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3852 CVE-2017-3851 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf1 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf2 Comment: This bulletin contains two (2) Cisco Systems security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Application-Hosting Framework Directory Traversal Vulnerability High Advisory ID: cisco-sa-20170322-caf1 First Published: 2017 March 22 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCuy52302 CVSS Score: Base 7.5, Temporal 7.5 CVE-2017-3851 CWE-22 Summary A vulnerability in the web framework code of the Cisco application-hosting framework (CAF) component of the Cisco IOx application environment could allow an unauthenticated, remote attacker to read any file from the CAF in the virtual instance running on the affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by submitting crafted requests to the CAF web interface. The impacts of a successful exploit are limited to the scope of the virtual instance and do not impact the router that is hosting Cisco IOx. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf1 Affected Products Vulnerable Products This vulnerability affects the following Cisco products: Product Series Vulnerable Product Cisco 800 Series Industrial Integrated Services Routers (IR800) Cisco IR809 Cisco IR829 Cisco 4000 Series Integrated Services Routers (ISR4K) Cisco ISR4321 Cisco ISR4331 Cisco ISR4351 Cisco ISR4451 Cisco ASR 1000 Series Aggregation Services Routers (ASR1K) Cisco ASR1001X Cisco ASR1001HX Cisco ASR1002X Cisco ASR1002HX Cisco IOx Releases 1.0.0.0 and 1.1.0.0 are vulnerable. Administrators can use the Cisco IOx Local Manager web-based management interface to determine which Cisco IOx release is running on a device: Launch the Local Manager GUI. Log in. Click the Systems Info tab. The Cisco IOx release is shown in the Software Ver area. 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 free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. 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 regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, 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 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. Fixed Releases Cisco IOx Release 1.2.4.2 resolves this vulnerability. Cisco IR800 Series Platforms Cisco IOx Release 1.2.4.2 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Industrial Routers > 800 Series Industrial Integrated Services Routers > 809 Industrial Integrated Services Routers > IOx Fog Node Software-1.2.0. This release of Cisco IOx is also included in the Cisco IOS bundle image, which can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Industrial Routers > 800 Series Industrial Integrated Services Routers > 809 Industrial Integrated Services Routers > IOS Software-15.6.3M1b. Cisco ISR4K and ASR1K Series Platforms Cisco IOx Release 1.2.4.2 is included in Cisco IOS XE Everest Release 16.4.1. ISR4K: Cisco IOS XE Everest Release 16.4.1 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Branch Routers > 4000 Series Integrated Services Routers > [specific product] > IOS XE Software-Everest-16.4.1(ED). ASR1K: Cisco IOS XE Everest Release 16.4.1 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Service Provider Edge Routers > ASR 1000 Series Aggregation Services Routers > [specific product] > IOS XE Software-Everest-16.4.1(ED). 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 found during internal testing. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf1 Revision History Version Description Section Status Date 1.0 Initial public release. Final 2017-March-22 ================================================================================================== Cisco Application-Hosting Framework Arbitrary File Creation Vulnerability High Advisory ID: cisco-sa-20170322-caf2 First Published: 2017 March 22 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCuy52317 CVSS Score: Base 8.1, Temporal 8.1 CVE-2017-3852 CWE-20 Summary A vulnerability in the Cisco application-hosting framework (CAF) component of the Cisco IOx application environment could allow an authenticated, remote attacker to write or modify arbitrary files in the virtual instance running on the affected device. The vulnerability is due to insufficient input validation of user-supplied application packages. An attacker who can upload a malicious package within Cisco IOx could exploit the vulnerability to modify arbitrary files. The impacts of a successful exploit are limited to the scope of the virtual instance and do not impact the router that is hosting Cisco IOx. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf2 Affected Products Vulnerable Products This vulnerability affects the following Cisco products: Product Series Vulnerable Product Cisco 800 Series Industrial Integrated Services Routers (IR800) Cisco IR809 Cisco IR829 Cisco 4000 Series Integrated Services Routers (ISR4K) Cisco ISR4321 Cisco ISR4331 Cisco ISR4351 Cisco ISR4451 Cisco ASR 1000 Series Aggregation Services Routers (ASR1K) Cisco ASR1001X Cisco ASR1001HX Cisco ASR1002X Cisco ASR1002HX Cisco IOx Releases 1.0.0.0 and 1.1.0.0 are vulnerable. Administrators can use the Cisco IOx Local Manager web-based management interface to determine which Cisco IOx release is running on a device: Launch the Local Manager GUI. Log in. Click the Systems Info tab. The Cisco IOx release is shown in the Software Ver area. 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 free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. 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 regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, 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 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. Fixed Releases Cisco IOx Release 1.2.4.2 resolves this vulnerability. Cisco IR800 Series Platforms Cisco IOx Release 1.2.4.2 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Industrial Routers > 800 Series Industrial Integrated Services Routers > 809 Industrial Integrated Services Routers > IOx Fog Node Software-1.2.0. This release of Cisco IOx is also included in the Cisco IOS bundle image, which can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Industrial Routers > 800 Series Industrial Integrated Services Routers > 809 Industrial Integrated Services Routers > IOS Software-15.6.3M1b. Cisco ISR4K and ASR1K Series Platforms Cisco IOx Release 1.2.4.2 is included in Cisco IOS XE Everest Release 16.4.1. ISR4K: Cisco IOS XE Everest Release 16.4.1 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Branch Routers > 4000 Series Integrated Services Routers > [specific product] > IOS XE Software-Everest-16.4.1(ED). ASR1K: Cisco IOS XE Everest Release 16.4.1 can be downloaded from the Software Center on Cisco.com by navigating to Products > Routers > Service Provider Edge Routers > ASR 1000 Series Aggregation Services Routers > [specific product] > IOS XE Software-Everest-16.4.1(ED). 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 found during internal testing. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-caf2 Revision History Version Description Section Status Date 1.0 Initial public release. Final 2017-March-22 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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). 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