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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0606 Cisco Enterprise NFV Infrastructure Software Remote Code Execution Vulnerability 21 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Enterprise NFV Infrastructure Software Publisher: Cisco Systems Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-3138 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Enterprise NFV Infrastructure Software Remote Code Execution Vulnerability Priority: Medium Advisory ID: cisco-sa-nfvis-codex-shs4NhvS First Published: 2020 February 19 16:00 GMT Version 1.0: Final Workarounds: No workarounds availableCisco Bug IDs: CSCvr73802 CVE-2020-3138 CWE-347 CVSS Score: 6.7 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X Summary o A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature validation. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to upload crafted code to the affected device. 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-nfvis-codex-shs4NhvS Affected Products o Vulnerable Products At the time of publication, this vulnerability affected Cisco NFVIS releases 3.11.1 and earlier. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Workarounds o This vulnerability can be mitigated by manually verifying the upgrade hashes with the published hashes on the official Cisco website before upgrading. Fixed Software o 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 be upgraded 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. Fixed Releases For information about fixed software releases, see the Details section in the bug ID(s) at the top of this advisory. Exploitation and Public Announcements o 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 o This vulnerability was found during the resolution of a Cisco TAC support case. Cisco Security Vulnerability Policy o To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy . This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-nfvis-codex-shs4NhvS Revision History o +---------+-------------------------+---------+--------+------------------+ | Version | Description | Section | Status | Date | +---------+-------------------------+---------+--------+------------------+ | 1.0 | Initial public release. | - | Draft | 2020-February-19 | +---------+-------------------------+---------+--------+------------------+ - --------------------------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. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== 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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