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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2275 Cisco Unified Communications Manager Stored Cross-Site Scripting Vulnerability 2 July 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Unified Communications Manager Publisher: Cisco Systems Operating System: Cisco Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-3420 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ct - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Unified Communications Manager Stored Cross-Site Scripting Vulnerability Priority: Medium Advisory ID: cisco-sa-cucm-xss-bLZw4Ctq First Published: 2020 July 1 16:00 GMT Version 1.0: Final Workarounds: No workarounds availableCisco Bug IDs: CSCvs88276 CVE-2020-3420 CWE-79 Summary o A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information. 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-cucm-xss-bLZw4Ctq Affected Products o Vulnerable Products At the time of publication, this vulnerability affected all releases of Cisco Unified CM and Cisco Unified CM SME software. 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 For information about fixed software releases , consult the Cisco bug ID(s) at the top of this advisory. 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-cucm-xss-bLZw4Ctq Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2020-JUL-01 | +----------+---------------------------+----------+--------+--------------+ - --------------------------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: 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 iQIVAwUBXv1UDuNLKJtyKPYoAQgCeA/8ClOUSoT8beDWbapBunSNTBv+8gK2fNGU wUco9eAtaB9iZ10qJPtiYTvx1C52a6d6jVl+RNDcnEEhCjv1qgkGa03MW/YrZYeX i1btlAW1/O2YRQXFBr6MX0YF87di1Bn6GFB88qRcyqlE9S9e17CpeNbbvg/rgQqT 8jVTPthBD9ZsJhOZ4/u0Fs1uEOH5X+hMis+KJVupRe3++rHlPz+xsQNt2/EgfBET azVMNZGCrNsNU9m17q4awII2VzXEURupI/tbYAAI3+wnXUNpVp2D3HR17Ke8+p5t NRwWjuoNGoZrWsAv622okiV+ZQ4cQrZNCSK3adh5NhuH7vy7dsQnlNuiWVSo5O9r bMmKDs7VyigzCYYPMY9DjeU0jHq+X5nPq1GH1LMkWNX70djEeZR/IPtQ9Lgf+8GI onElBv06yb4bonhSATeXuvMyuoeoVYkFnjNS0r55yyDZyi72GSFjXyasqpyrGQfh EKzKOpM6Dve4V51MNPsu1/6ay9Xp48aL0xL1iEupIxV7045g6PQTAOkBevr7hzBe NJhX1A45LywByrrZ4ADuMpw98zWNAZC3MDC0m7fVwdeEbjLtzU4shngec+E6XVuU 4oDZklN4c8PctZdhB1ls3dfDhWfWd3pNuGAitIQqOLr2MOMiA0dVaiYEO+BiIsgT 0ae+f5dF8Eg= =udoD -----END PGP SIGNATURE-----