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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1220 Cisco WebEx Connect IM Cross-Site Scripting Vulnerability 19 April 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco WebEx Connect IM Publisher: Cisco Systems Operating System: Windows XP Impact/Access: Cross-site Scripting -- Remote with User Interaction Reduced Security -- Unknown/Unspecified Resolution: Alternate Program CVE Names: CVE-2018-0276 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-webcon Comment: This product has reached end of life and is no longer supported. - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco WebEx Connect IM Cross-Site Scripting Vulnerability Medium Advisory ID: cisco-sa-20180418-webcon First Published: 2018 April 18 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvi07812 CVSS Score: Base 6.1 CVSS: 3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X CVE-2018-0276 CWE-79 Summary o A vulnerability in Cisco WebEx Connect IM could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of an 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-20180418-webcon Affected Products o Vulnerable Products This vulnerability affects Cisco WebEx Connect IM. For information about affected software releases, consult the Cisco bug at the top of this advisory. Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Details o Cisco WebEx Connect IM has been retired and is no longer supported. Customers may pursue additional Web Conferencing offerings to meet specific business needs. 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. 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 reported to Cisco by Chacko K. Abraham and Tilak Sarangi. 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. Action Links for This Advisory o Understanding Cross-Site Scripting (XSS) Threat Vectors Related to This Advisory o Cross-Site Scripting URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-webcon Revision History o +---------+--------------------------+---------+--------+----------------+ | Version | Description | Section | Status | Date | +---------+--------------------------+---------+--------+----------------+ | 1.0 | Initial public release. | - | Final | 2018-April-18 | +---------+--------------------------+---------+--------+----------------+ Legal Disclaimer o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products. - --------------------------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 iQIVAwUBWtgsVox+lLeg9Ub1AQhVzw//QVrcqqApSHQ2jBvm8Q8VvhqO7ocm8HHy tJd7i3d/1hvUz5fqbjPIYXAxeT55wTP6sKWr45OF6RgwsHasrdYnuTLRBM20B6d0 v1C+ZqJDvyDxvCzVXSZWbYBfhnebfwbCccRnz1dA6nAeZftnB81mMbxzgSTpAD2D xACZB0XvY7vRhsjGCEs4gaEbQcSZ1CpVUy0A9glYRyzgXKYfb/sgRue+9dCcxMQd koW0c72MWmZ9RmEzXxiDW52jAg0VqyDeGXcns8/uczhiRUoNnqA0uA44FsyVYBTG Ot4sV8Rr7TDz6PFSV6ojIsJJB2BV42q1epbDSjsSAnrsuMmHwCjeIa+rGBgc5ta4 vbNAbNd69ooUAGtdGC2ysiYISDqv+YCphu5hYVKOiJeBcsv3N06AT/SXOzEY3qkK HsUaRI9zwS2qbLYe1+y6G8vrJIL6zKgVEJpe+zPd2KUCn8lXZ9kx7tlCqbgphMeE 7OOSZj9OKb34ukw/q1Nzny7HyAEqlI+XxjxJmrRra84q+olqaY/nGTErSpD+9Jqe cY9jNWEAnYKYao59MxifTa3Kb0pWIFscBGcFj+Pc6Tw6LkRrVXNZtZSdvunXQcEy ADsZp7SKw+pWtvxg4e3TVcZ3HQK8ecpuKJ5jsoxwJDKDAKzW0nSnWlxUJuLFuVPC e6OyjxhqBuk= =vN/P -----END PGP SIGNATURE-----