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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2053 Cisco Unified Communications Manager Horizontal Privilege Escalation Vulnerability 17 August 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Unified Communications Manager Publisher: Cisco Systems Operating System: Network Appliance Virtualisation Impact/Access: Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-6785 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-ucm - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Unified Communications Manager Horizontal Privilege Escalation Vulnerability Medium Advisory ID: cisco-sa-20170816-ucm First Published: 2017 August 16 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCve27331 CVSS Score: Base 4.3, Temporal 4.3 CVE-2017-6785 CWE-20 Summary A vulnerability in configuration modification permissions validation for Cisco Unified Communications Manager could allow an authenticated, remote attacker to perform a horizontal privilege escalation where one user can modify another user's configuration. The vulnerability is due to lack of proper Role Based Access Control (RBAC) when certain user configuration changes are requested. An attacker could exploit this vulnerability by sending an authenticated, crafted HTTP request to the targeted application. An exploit could allow the attacker to impact the integrity of the application where one user can modify the configuration of another user's information. Workarounds that address this vulnerability are not available. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-ucm Affected Products Vulnerable Products This vulnerability affects Cisco Unified Communications Manager. 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. 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 found during resolution of a Cisco TAC Support case. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-ucm Revision History Version Description Section Status Date 1.0 Initial public release. -- Final 2017-August-16 Legal Disclaimer 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. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBWZUsdox+lLeg9Ub1AQgTbA/+NtuI2N+HbTWmv9nH0HzAXYCnf+ZmxUtz ULYjd0yuZsMlV97bETuXsawnhbNY0Flhz0rYbQ/e2fePxO6j6s5jwhZZMGThc6a7 PnFAEdW1gJN1wTDMUeiz5ktzeHt5IYUQyL4/jYKkWHDvBMxWdRDDjEDsEopZvFFB NaA/3AskzuqjP0m8Gcyl4BWkTZYEBEZliUuE2htxeIAEG4Jz0jioTyOqkhtg7iE4 31EFVrJcBij5EuEpf5WrVMwBNosb8biOXPs9R0xXxQxaZSNlEAteNq5osYfoIPSX gzZAQulQiHzswS/AFkLMeBHiGBXJLhEZFjKspt0k6F08G1iwnKuIsR4v9C/gmlUx HPxiB6XFclUCg3L2XwOdQT4mH2OJCCYBJ8wTHLA094dIsqdReCAM6XeKvxQJMrg3 1DYi8uSgHD7f83UjJuZdUDUOJ+zAJqZ3jZFXyve44NdztrnJZzE0Gn2FRq2QF+LC pwFiGEIoSR1a4iH/oZYxxObfpuVpso90MyyNBkQ9B4skiCnYMmaz7j+9fOGxxF/U k1lgfphqfE8jgkQDWJdsOG/udFtNS0FFDriR+cUowozIQwdsCajvzFKQw4VQzAHh EWcoZ2ZS44gYIwEQBNRIl1T3XzNd93OS4Pf4msmNFbWv+HZjfFsdVA5eye0aUiiC reDFY3XGno8= =mRW2 -----END PGP SIGNATURE-----