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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3497 Cisco Meeting Server Information Disclosure Vulnerability 8 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Meeting Server Publisher: Cisco Systems Operating System: Cisco Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-15446 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-meeting-server - --------------------------BEGIN INCLUDED TEXT-------------------- Priority: Medium Advisory ID: cisco-sa-20181107-meeting-server First Published: 2018 November 7 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvk16348 CVE-2018-15446 CVSS Score: Base 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X Summary * A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper protections on data that is returned from user meeting requests when the Guest access via ID and passcode option is set to Legacy mode. An attacker could exploit this vulnerability by sending meeting requests to an affected system. A successful exploit could allow the attacker to determine the values of meeting room unique identifiers, possibly allowing the attacker to conduct further exploits. 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-20181107-meeting-server Affected Products * Vulnerable Products This vulnerability affects Cisco Meeting Server. For information about affected software releases, consult the Cisco bug ID(s) at the top of this advisory. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Workarounds * There are no workarounds that address this vulnerability. However, customers can use Secure mode for the Guest access via ID and passcode option to prevent exploitation of this vulnerability. Fixed Software * 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. 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 Andrea Marini and Francesco Russo from NTT DATA Italia for reporting this vulnerability. Cisco would like to thank Yamila Levalle from Innovation and Lab at ElevenPaths, the Cybersecurity Unit of Telefonica, for independently reporting this vulnerability. URL * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-meeting-server Revision History * +----------------------------------------------------------------------------+ | Version | Description | Section | Status | Date | |---------+---------------------------+---------+--------+-------------------| | 1.0 | Initial public release. | - | Final | 2018-November-07 | +----------------------------------------------------------------------------+ - --------------------------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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