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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2457 Brocade Fabric OS (FOS) Advisory vulnerabilities affect Brocade 8Gb SAN Switch Module for BladeCenter and IBM Flex System FC5022 16Gb SAN Scalable Switch 4 July 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM PureFlex System & Flex System Publisher: IBM Operating System: Network Appliance Impact/Access: Root Compromise -- Existing Account Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Unauthorised Access -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-6442 CVE-2018-6441 CVE-2018-6440 CVE-2018-6439 CVE-2018-6438 CVE-2018-6437 CVE-2018-6436 CVE-2018-6435 CVE-2018-6434 CVE-2018-6433 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10888177 - --------------------------BEGIN INCLUDED TEXT-------------------- Brocade Fabric OS (FOS) Advisory vulnerabilities affect Brocade 8Gb SAN Switch Module for BladeCenter and IBM Flex System FC5022 16Gb SAN Scalable Switch Product: PureFlex System & Flex System Component: Machine Types: 8721,8724,7893 Software version: All Versions Operating system(s): Firmware Reference #: 0888177 Security Bulletin Summary The following Brocade Fabric OS (FOS) vulnerabilities have been addressed by Brocade 8Gb SAN Switch Module for BladeCenter and IBM Flex System FC5022 16Gb SAN Scalable Switch. Vulnerability Details CVEID: CVE-2018-6442 DESCRIPTION: Broadcom Brocade Fabric OS could allow a remote authenticated attacker to execute arbitrary commands on the system, caused by a flaw in the Brocade Webtools firmware update section. By sending specially-crafted arguments, an attacker could exploit this vulnerability to execute arbitrary commands on the system. CVSS Base Score: 8.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152758 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2018-6441 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to bypass security restrictions, caused by a flaw in the Secure Shell implementation. By sending a specially-crafted argument, an attacker could exploit this vulnerability to provide arbitrary environment variables and bypass the restricted configuration shell. CVSS Base Score: 4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152757 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) CVEID: CVE-2018-6440 DESCRIPTION: Broadcom Brocade Fabric OS could allow a remote attacker to obtain sensitive information, caused by a flaw in the proxy service. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service condition. CVSS Base Score: 7.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152909 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L) CVEID: CVE-2018-6439 DESCRIPTION: Broadcom Fabric OS could allow a local attacker to bypass security restrictions, caused by a flaw in the configdownload command in the command line interface. By sending a specially-crafted request, an attacker could exploit this vulnerability to escape the restricted shell and gain root access. CVSS Base Score: 6.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 153836 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) CVEID: CVE-2018-6438 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to gain elevated privileges on the system, caused by a flaw in the supportsave command by the command line interface (CLI). By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain root shell access. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152800 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2018-6437 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to gain elevated privileges on the system, caused by a flaw in the help command by the command line interface (CLI). By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain root shell access. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152799 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2018-6436 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to gain elevated privileges on the system, caused by a flaw in the firmwaredownload command by the command line interface (CLI). By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain root shell access. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152798 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2018-6435 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to gain elevated privileges on the system, caused by a flaw in the secryptocfg command. By sending specially-crafted arguments, an attacker could exploit this vulnerability to escape the restricted shell and gain root access. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152756 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2018-6434 DESCRIPTION: Broadcom Brocade Fabric OS could could allow a remote attacker to hijack a user''s session. By persuading a victim to click on a specially-crafted Web site, an attacker could exploit this vulnerability using the web management interface to gain access to another user''s session. CVSS Base Score: 6.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152755 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) CVEID: CVE-2018-6433 DESCRIPTION: Broadcom Brocade Fabric OS could allow a local attacker to bypass security restrictions, caused by a flaw in the ecryptocfg export command. By sending a specially-crafted argument, an attacker could exploit this vulnerability to perform arbitrary file copy from source to a remote system. CVSS Base Score: 4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 152752 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) Affected Products and Versions Product Affected Version IBM Flex System FC5022 16Gb SAN Scalable Switch Firmware 8.0 Fabric OS firmware for Brocade 8Gb SAN Switch Module 7.4 Remediation/Fixes Product Fixed Version IBM Flex System FC5022 16Gb SAN Scalable Switch Firmware 8.2.1 (brcd_fw_bcsw_8.2.1_anyos_noarch) Fabric OS firmware for Brocade 8Gb SAN Switch Module 7.4.2d (brcd_fw_bcsw_7.4.2d_anyos_noarch) Workarounds and Mitigations None Brocade Security Advisories Change History 21 June 2019: Initial version published Cross reference information Product Component Platform Version Edition BladeCenter->BladeCenter H Chassis Firmware - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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 iQIVAwUBXR2VeGaOgq3Tt24GAQiaYBAAkxUChqHLrY+lTTMxTe1jWejrp3NcNvuV nSbdZ0UC9dNwP9XteDC+gEHjMFwEhZAf7BYAux4CFnk3CExEoR0s5d06UVYN63Fb IPxwX4c328RBDKXKqjY7JOoIIEE1XMmO6M8rD4C5BfMCdmVFZi70wPa30gOk0kDu rtMF9lGjizyIQLjaId25znZCj5IP+0vw/G/Nod50ABVx6WgzSTC3nW6YmlD/UFBr fSCPJ8N4rAZdueXLWNW823HhHCgCOCWGuB+/gC9eH+bIaIcgbAJqDNAfyyUIPHds BxBokP+N/+cEFdIzzMURwMaFtzq7yIWqN+KH+kTEQ0qw7Gvwx21/GMWRCts7O0kM 0EqKbIGAwj2aksstg8aGlp0gXk3PZCbX7lVAjqdSQIliI1T2RyC1HIFjewKOFtyz Wcxk5b8YvvfQy2wBTO4pgMRtTFs7mE78b82lrMlpVhLdubJK4PxFunIFCqF3Yq3r roTfD9xve1Ndrj5Fn1f69fOTxXAzNoG/pWZXTqnXK4Hk4yD76+KNhOuPLpaXNcHd yGx4u1f+4TVrfPune/p9k80VGkXHGDLiW1nLrGIRoq4ZOBNAesmTQHApd/TWc8cD HnF8LffKmKcZErJS8bYORAJcmMxK1ovaYC3U9fgRX3CeGhmGDm+hMjUYciDiQoUA dplHNhqGUyg= =YmKZ -----END PGP SIGNATURE-----