07 June 2018
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1691 Cisco FireSIGHT System VPN Policy Bypass Vulnerability 7 June 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco FireSIGHT System Publisher: Cisco Systems Operating System: Cisco Impact/Access: Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-0333 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-FireSIGHT-vpn-bypass - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco FireSIGHT System VPN Policy Bypass Vulnerability Medium Advisory ID: cisco-sa-20180606-FireSIGHT-vpn-bypass First Published: 2018 June 6 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvh49388 CVSS Score: Base 5.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:X/RL:X/RC:X CVE-2018-0333 CWE-693 Summary o A vulnerability in the VPN configuration management of Cisco FireSIGHT System Software could allow an unauthenticated, remote attacker to bypass VPN security due to unintended side effects of dynamic configuration changes that could allow an attacker to bypass configured policies. The vulnerability is due to incorrect management of the configured interface names and VPN parameters when dynamic CLI configuration changes are performed. An attacker could exploit this vulnerability by sending packets through an interface on the targeted device. A successful exploit could allow the attacker to bypass configured VPN policies. 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-20180606-FireSIGHT-vpn-bypass Affected Products o Vulnerable Products This vulnerability affects Cisco FireSIGHT System Software. 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 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 found during internal security testing. 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. Subscribe to Cisco Security Notifications o Subscribe URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-FireSIGHT-vpn-bypass Revision History o +---------+---------------------------+---------+--------+---------------+ | Version | Description | Section | Status | Date | +---------+---------------------------+---------+--------+---------------+ | 1.0 | Initial public release. | -- | Final | 2018-June-06 | +---------+---------------------------+---------+--------+---------------+ 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 email@example.com 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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWxioWWaOgq3Tt24GAQhJcw//VTT/0PXHzZdMteH+/90+5uBcHfjLwWGB dBnuezKQiA798rWccZMh76LabzYeDbMeYcwM3Uyl9idn3IjrMb7S6bI7sqCE2Ev/ srkWaaMDyewulI+mkrCMopiSQS23S3TVQt0yaw2kjRN6GKPko6kxZZ3I5OaDsugr 5tPX4LH4wQ939ao9RvDYQ1zYgBY3AnX39BElVvFdTORrlUc0jIC2ff1jDnmAyG5I F1yezPtx5emilGdvZSe59hzLwXuzjraBBWGfl0WBVVRy4nLw6Olz8iUIpjCjdLIh S7K19eaLHMnpdph77ua935cEIncbfum66nE05wgPw/tixE5FgAGjjSwny6meDjWn z26pdUf0S+MJiJxDyXSIy1PeHkj/IgorrsC11lwroURR9nX2rwR8X/aVM+3nNR1H Dz33tYFw+YhwuEk89TDr9xl+Ugz2vnZGQfaSsDMHlyMrEu1zcLIy1+AAxxeSsHsv qrX3HGt67TJOpEnMljj5AInQewR5ht1AMWG530K5fWXcyedHmoEu7ZUSbbzb33E1 82n47H6gi+0F4rX/ycMjFwFXQXPFAM+cOiFdAOWW3BxNBJAg12mDku9IdBGGL0PS tojDnyOopSUrdinbRIV7XZXHBRVEd9H3W14p20TfHWQXy63IPaGHfNKhRf3NU9cw jGNg6kopBhY= =SeBR -----END PGP SIGNATURE-----