Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2949 Cisco Identity Services Engine: Login Attempt Limit Bypass 17 November 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Identity Services Engine Publisher: Cisco Systems Operating System: Cisco Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-12316 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-ise - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Identity Services Engine Guest Portal Login Limit Bypass Vulnerability Severity: Medium Advisory ID: cisco-sa-20171115-ise First Published: 2017 November 15 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCve98518 CVE-2017-12316 CWE-287 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 CVE-2017-12316 CWE-287 Summary * A vulnerability in the Guest Portal login page of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to perform multiple login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Guest Portal login page. An exploit could allow the attacker to perform brute-force password attacks on the ISE Guest Portal. 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-20171115-ise Affected Products * Vulnerable Products This vulnerability affects Cisco Identity Services Engine. For information about affected software releases, consult the Cisco bug ID(s) 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 reported to Cisco by external researcher Mauricio Urizar from Deep Security. URL * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20171115-ise - ------------------------------------------------------------------------------- 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. 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 iQIVAwUBWg5pcox+lLeg9Ub1AQhlmQ/+KEbnXwuiCmR5/4FlU0piQ4rAoin7ctj1 0kAtYNBgLijC97dCREO9hGgtLKOCF6yamQ5W0tZQBTt+RLyocVLDwarvGvnhrM0H DdigURp8odoc8wxvhtj0QNAPIvytBv33PRcKHFSwnz7ROhx8tpfiq0AmoS3CIDht qeQS/MjyuWri2/n+SDOie9PqNRQptPKlzoNdTv+QXa/lCZr94QG89wG180fXj89W NQs/of+lSoJ70exd09w5dNZB3tFIKepOnGubShBl0fY7uBK4540CMr2vzaHi+A8G aEUOonjF55p6D3G+ZYlz+br27bb/2gdumgxb7ZxeKqFVlcvp7A9EoCCbsH4cPLaE bSTsJMRljCBHP/SZGLd+Olg+SMgFUJGL0RGHvHGi1t4mB6WpWYoFFrf+zQjAuBgc Rkx/p6AqWwEvh7uMWrWYj/gnqH40JGG3WqeuZdtA1jMR4bL4Se9gwaslOxw36jw8 hxnvj8ABtjb6eqHjQ/KpZxgAhXM1dWVyXxuihK5WmPh28E25WueZeQEzvK3pJmvx r5CNR2W13S96lNEhyYd6+OLUUSp/gQ6HMwNjuclSuA/rGP+t/TO3Cf8FIo+H2BVU zPGUibLc3R9e99c66qCalShwz4IXc6SqJRbaIiUOC5HSqkJ8f6JevEWqpATTRGN0 Gxadnq+pVxs= =ZFDQ -----END PGP SIGNATURE-----