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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4184 Cisco Small Business SPA500 Series IP Phones Local Script Execution Vulnerability 7 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Small Business SPA500 Series IP Phones Publisher: Cisco Systems Operating System: Cisco Impact/Access: Execute Arbitrary Code/Commands -- Console/Physical Resolution: Patch/Upgrade CVE Names: CVE-2019-15959 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-spa500-script - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Small Business SPA500 Series IP Phones Local Script Execution Vulnerability Priority: Medium Advisory ID: cisco-sa-20191106-spa500-script First Published: 2019 November 6 16:00 GMT Version 1.0: Final Workarounds: No workarounds availableCisco Bug IDs: CSCvp40755 CVE-2019-15959 CWE-20 CVSS Score: 6.6 AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X Summary o A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by accessing the physical interface of a device and inserting a USB storage device. A successful exploit could allow the attacker to execute scripts on the device in an elevated security context. 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-20191106-spa500-script Affected Products o Vulnerable Products At the time of publication, this vulnerability affected Cisco Small Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and earlier. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. 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 There are no workarounds that address this vulnerability. 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, consult the Cisco 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 Cisco would like to thank Dustin Cobb of Aon's Cyber Labs for reporting this vulnerability. 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-20191106-spa500-script Revision History o +---------+-------------------------+---------+--------+------------------+ | Version | Description | Section | Status | Date | +---------+-------------------------+---------+--------+------------------+ | 1.0 | Initial public release. | - | Final | 2019-November-06 | +---------+-------------------------+---------+--------+------------------+ - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXcOcImaOgq3Tt24GAQjMqhAAiM/jDovhrBLgFNw64DtAL/w64hie8dXq GyA3VOYq7rggExKUZd7BVvV502LXdpj5ShOHafnOCF83t1hW6B2o3ZGz6h3o1kmc n8L7cVjLHAUur3kpsh3Q8fVtuhdtam7263snbRaKSa6XhgNQG7Ot2fslBza7dZFz g2CqW/y8nt6sq61FgWMDwZ1DF8IRr3D/CCroVCmY2GLBeYkXDxK4Zfg9E7mdF2C0 yLeFQQJ1Z8QXxH4yNjYZo94IxZcY8c1KEtfsmBpIbJcP9/LhT5kt1xO3+PJW4ryf wCMNga9f0MEkc7I9wmAtJQaD5QfHC8nAY99y9/EUReJ/GR/q4kF4R3FDFvWJDzBx yDVL36raif5i0T4ckFdrklpUXNPLjKNNvv/8TR5TQcVhJh0q1GnFvyD1T9HMjZcU fApAMMFKsP/Kbf1MyzRhVyvhA9zX4oVXKTBq8Ep4qsXlj1DEjAdRmazLZkabmjYP e4N+60nFHoKEhs/wiMXdFeL+ekH5TJPNtAxqcH4KhcqKorZ2vUCEvEZi33aLVQVZ qYhK9aVieR/TrjXqyZwyMkr60DC2n5Q3UIKK5QqTPdjRvRel6kLzx4acbYg9uyxw 0uY5oB1VT6ujpZJgKs4SAxeeSR+MFnr5VbHDWGLuvAHu+1s0T7HoQtnVs7GPZdo2 nOliQ8pnkvI= =XlnQ -----END PGP SIGNATURE-----