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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3201 Cisco IMC Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability 22 August 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco IMC Supervisor Cisco UCS Director Express Cisco UCS Director Operating System: Cisco Impact/Access: Administrator Compromise -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-1974 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imcs-ucs-authbypass - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco IMC Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability Priority: Critical Advisory ID: cisco-sa-20190821-imcs-ucs-authbypass First Published: 2019 August 21 16:00 GMT Version 1.0: Final Workarounds: No workarounds availableCisco Bug IDs: CSCvq48630 CVE-2019-1974 CWE-287 CVSS Score: 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X Summary o A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to bypass user authentication and gain access as an administrative user. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to gain full administrative access to the affected device. Cisco has released software updates that address this vulnerability. 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-20190821-imcs-ucs-authbypass Affected Products o Vulnerable Products This vulnerability affects the following Cisco products: Cisco IMC Supervisor releases: 2.1 2.2.0.0 through 2.2.0.6 Cisco UCS Director releases: 5.5.0.0 through 5.5.0.2 6.0.0.0 through 6.0.1.3 6.5.0.0 through 6.5.0.3 6.6.0.0 and 6.6.1.0 6.7.0.0 through 6.7.2.0 Cisco UCS Director Express for Big Data releases: 2.1.0.0 through 2.1.0.2 3.0.0.0 through 3.0.1.3 3.5.0.0 through 3.5.0.3 3.6.0.0 and 3.6.1.0 3.7.0.0 through 3.7.2.0 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 Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: https://www.cisco.com/c/en/us/products/end-user-license-agreement.html Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades. 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. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Fixed Releases Cisco fixed this vulnerability in the following software releases: Cisco IMC Supervisor releases 2.2.1.0 and later Cisco UCS Director releases 6.7.3.0 and later Cisco UCS Director Express for Big Data releases 3.7.3.0 and later At the time of publication, fixes for UCS Director 6.5 and 6.6 were expected to be available by late August 2019. Customers can download the Cisco IMC Supervisor software from the Software Center on Cisco.com by doing the following: 1. Click Browse all . 2. Choose Servers - Unified Computing > Integrated Management Controller (IMC) Supervisor > IMC Supervisor 2.x . 3. Access releases by using the left pane of the IMC Supervisor 2.x page. Customers can download the Cisco UCS Director software from the Software Center on Cisco.com by doing the following: 1. Click Browse all . 2. Choose Servers - Unified Computing > UCS Director > UCS Director 6.7 . 3. Access releases by using the left pane of the UCS Director 6.7 page. Customers can download the Cisco UCS Director Express for Big Data software from the Software Center on Cisco.com by doing the following: 1. Click Browse all . 2. Choose Servers - Unified Computing > UCS Director > UCS Director Express for Big Data 3.7 . 3. Access releases by using the left pane of the UCS Director Express for Big Data 3.7 page. 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 Cisco would like to thank an external researcher who wants to remain anonymous. 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. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20190821-imcs-ucs-authbypass Revision History o +---------+--------------------------+---------+--------+-----------------+ | Version | Description | Section | Status | Date | +---------+--------------------------+---------+--------+-----------------+ | 1.0 | Initial public release. | - | Final | 2019-August-21 | +---------+--------------------------+---------+--------+-----------------+ - --------------------------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 iQIVAwUBXV3zcGaOgq3Tt24GAQjhsRAAtgtt4xpRsPGJw0Sv+ZzdNQXaAZVPs/s4 Fri2UnxdhAppm4WLVNSUoYvWaQgsKhn7IKtudbyysw98L/9b6po/VweM1ye9GI6L ExsKZGNWodtupwm4TCwt7zP6ia8viXfDVQl61Cltk7dSfRE9/2ff6UsPfqZxxY/i cXEEeJNDcpq2nldHa2cPmJDB5Dxvi3BFCh//Gkk7ZezOkknHZQP6eQATLuOpglIh OPF9KaSk/SvXEPEy84XBsaTt0dxRcBbL5Zome5y1XMS7abO1odTDPcrzvqoihA4l Z22YiGzIWyrHyJHrsFPOYmlltmb72QdP+3CZxl8WfKNjn0snyvA7VCHJZjyu1Ks9 zPgbyPnH9YtZiw/DDc6FJl+r286EXxvCLdyG5OAIhJFB9RoM4YpbB9OqGJdLvYOP 3KYriuFM1I28ulwNXMfya9N2byL1MlMqsEuLcWJfFNgs/DpL3dW3fdi5eeb9UkG6 jTdHesH5mjubKYFliyCoNuh2RTULmIZXfOQhKACtmIMezLC13LIzMLLzJHlcJDQh FzFdqSqYwr3WoH8dpiGCMUndgtMf8jQfkvO/JsPoYSXi0x7Gg69pORc3ggh6RATd Od1E/kbfpLf4TpghhUltOjt+zqD7Go9gWHucj5A3Egak5Zyb03oQ9DamMCosOoAk yosSWU1pt0U= =sVV9 -----END PGP SIGNATURE-----