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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2786 Cisco WebEx Meetings Server Multiple Vulnerabilities 2 November 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco WebEx Meetings Server Publisher: Cisco Systems Operating System: Cisco Impact/Access: Cross-site Scripting -- Remote with User Interaction Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-12295 CVE-2017-12294 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex2 Comment: This bulletin contains two (2) Cisco Systems security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco WebEx Meetings Server Cross-Site Scripting Vulnerability Medium Advisory ID: cisco-sa-20171101-webex1 First Published: 2017 November 1 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvf85562 CVSS Score: Base 5.4 CVE-2017-12294 CWE-79 Summary A vulnerability in Cisco WebEx Meetings Server could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to 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-20171101-webex1 Affected Products Vulnerable Products This vulnerability affects Cisco WebEx Meetings Server. For information about affected software releases, consult the Cisco bug ID at the top of this advisory. Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco-hosted WebEx products: Cisco WebEx Meeting Center Cisco WebEx Training Center Cisco WebEx Event Center Cisco WebEx Support Center Cisco WebEx Meetings Workarounds There are no workarounds that address 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 This vulnerability was reported to Cisco by Adam Willard of Blue Canopy. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1 ================================================================================ Cisco WebEx Meetings Server Information Disclosure Vulnerability Medium Advisory ID: cisco-sa-20171101-webex2 First Published: 2017 November 1 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCve65818 CVSS Score: Base 5.3 CVE-2017-12295 CWE-200 Summary A vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to access sensitive data about the application. An attacker could exploit this vulnerability to gain information to conduct additional reconnaissance attacks. The vulnerability is due to the HTTP header reply from the Cisco WebEx Meetings Server to the client, which could include internal network information that should be restricted. An attacker could exploit the vulnerability by attempting to use the HTTP protocol and looking at the data in the HTTP responses from the Cisco WebEx Meetings Server. An exploit could allow the attacker to discover sensitive data about the application. 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-20171101-webex2 Affected Products Vulnerable Products This vulnerability affects Cisco WebEx Meetings Server. For information about affected software releases, consult the Cisco bug ID at the top of this advisory. Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco-hosted WebEx products: Cisco WebEx Meeting Center Cisco WebEx Training Center Cisco WebEx Event Center Cisco WebEx Support Center Cisco WebEx Meetings Workarounds There are no workarounds that address 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 This vulnerability was reported to Cisco via a TAC case. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex2 - --------------------------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 iQIVAwUBWfqaoYx+lLeg9Ub1AQjfmA/8CnKZ7hxjLYRXsckxLFFydbGDFesjM4pq hYiekdN38j0+l9ysBw9aM9ml3tVu606OMCoLPMFCkwaRiDhRnkOe0QCo7ynfzDUk SlqhJPH0ebTdxsV0NjqIdL1H+O91UREIdo1FSt5m6hjvtHEOL4UBjqIcvAWDFpVq ZmYVaRqfpPFMI/1BKVXhEzAk23l+nQTVwEvgdOBJNrkNwXiS/eCx5e6KC/3PUkVm fx2L58xbG52VrP4bIUG9Z6yXWgMBg1Qf4TYTw1+Lrp4NfAn0ZwhmHuf8bRHdzHGx +w9tGz8EFNlI19ejb2o4dETax2ca75LWUED429L+OyWDfrNa1ydVaxhBs6D1E895 7OIWeRij1mcEn+F7TVKyrPdxM5+cDIukzttZpCL4JVkT8enve6KdnmNkmf2yZBh3 knHD8is3X6wztV6koKnyf04mML8IH2KdgsdAAg4ZUNfejzfVXvBlQIWLKV3whal3 y2gx7dxjGlLCc6I1vKA2q3mwZ0aMF4+bIqfNQLsBu3OlKSwgPZBGFTP7lNri7gCF 3K+uZXjocVcEcJgfDpjtjcHMMjttA4FpkoBFgaXLDS9LBZL5XGQh2W/tPmbsTS7l JCN9SEcRLsY0kP21JcQm5+R74MBNjH+BxAfqsKSveZWnH+rT2+iE/5UL/nSpoNGH uQIxdCM27GM= =Q6n4 -----END PGP SIGNATURE-----