Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1327.2 Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data 20 April 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco UCS Director Cisco UCS Director Express for Big Data Publisher: Cisco Systems Operating System: Cisco Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Root Compromise -- Existing Account Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-3252 CVE-2020-3251 CVE-2020-3250 CVE-2020-3249 CVE-2020-3248 CVE-2020-3247 CVE-2020-3243 CVE-2020-3240 CVE-2020-3239 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-ucsd-mult-vulns-UNfpdW4E Revision History: April 20 2020: Information on exploit code availability April 16 2020: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data Priority: Critical Advisory ID: cisco-sa-ucsd-mult-vulns-UNfpdW4E First Published: 2020 April 15 16:00 GMT Last Updated: 2020 April 17 19:27 GMT Version 1.1: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvs53493 CSCvs53496 CSCvs53500 CSCvs53502 CSCvs56399 CSCvs56400 CSCvs56401 CSCvs69022 CSCvs69171 CSCvt39489 CSCvt39526 CSCvt39535 CSCvt39555 CSCvt39561 CSCvt39565 CSCvt39575 CSCvt39580 CVE-2020-3239 CVE-2020-3240 CVE-2020-3243 CVE-2020-3247 CVE-2020-3248 CVE-2020-3249 CVE-2020-3250 CVE-2020-3251 CVE-2020-3252 CWE-20 CWE-22 CWE-264 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 Multiple vulnerabilities in the REST API of Cisco UCS Director and Cisco UCS Director Express for Big Data may allow a remote attacker to bypass authentication or conduct directory traversal attacks on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-ucsd-mult-vulns-UNfpdW4E Affected Products o Vulnerable Products The following table lists Cisco products that are affected by one or more of the vulnerabilities that are described in this advisory: +-------------+---------------------------------+-----------------+-------+ | Product | Cisco Bug IDs | Vulnerable | Fixed | | | | Release(s) |Release| +-------------+---------------------------------+-----------------+-------+ | | |6.0.0.0, 6.0.0.1,| | | | |6.0.1.0, 6.0.1.1,| | | | |6.0.1.2, 6.0.1.3 | | | | | | | | |CSCvs53496 , CSCvs53493 |6.5.0.0, 6.5.0.1,| | |Cisco UCS |CSCvs53500 , CSCvs53502 |6.5.0.2, 6.5.0.3,| | |Director |CSCvs56400 , CSCvs56401 |6.5.0.4 |6.7.4.0| | |CSCvs56399 , CSCvs69171 | | | | |CSCvs69022 |6.6.0.0, 6.6.1.0,| | | | |6.6.2.0 | | | | | | | | | |6.7.0.0, 6.7.1.0,| | | | |6.7.2.0, 6.7.3.0 | | +-------------+---------------------------------+-----------------+-------+ |Cisco UCS |CSCvt39561 , CSCvt39555 | | | |Director |CSCvt39580 , CSCvt39565 |3.7.3.0 and |3.7.4.0| |Express for |CSCvt39535 , CSCvt39526 |earlier | | |Big Data |CSCvt39575 , CSCvt39489 | | | +-------------+---------------------------------+-----------------+-------+ Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities. Details o Vulnerability Details Details about the vulnerabilities are as follows. Cisco UCS Director and UCS Director Express for Big Data Authentication Bypass Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrative privileges on an affected device. The vulnerability is due to insufficient access control validation. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to interact with the REST API with administrative privileges. Bug ID(s): CSCvs53496 , CSCvt39580 CVE ID: CVE-2020-3243 Security Impact Rating (SIR): Critical CVSS Base Score: 9.8 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Remote Code Execution Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to execute arbitrary code with root privileges on the underlying operating system. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by crafting a malicious file and sending it to the REST API. A successful exploit could allow the attacker to open a remote shell and execute code with root privileges. Bug ID(s): CSCvs56399 , CSCvt39555 CVE ID: CVE-2020-3240 Security Impact Rating (SIR): High CVSS Base Score: 8.8 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Authentication Bypass Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an unauthenticated, remote attacker to bypass authentication and execute API calls on an affected device. The vulnerability is due to insufficient access control validation. An attacker could exploit this vulnerability by sending a request to the REST API endpoint. A successful exploit could allow the attacker to interact with the REST API and cause a potential Denial of Service (DoS) condition on the affected device. Bug ID(s): CSCvs53493 , CSCvt39575 CVE ID: CVE-2020-3250 Security Impact Rating (SIR): High CVSS Base Score: 8.6 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Cisco UCS Director and UCS Director Express for Big Data Directory Traversal Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to execute code on the system. Bug ID(s): CSCvs69171 , CSCvt39489 CVE ID: CVE-2020-3251 Security Impact Rating (SIR): High CVSS Base Score: 8.1 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Directory Traversal Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to perform a Denial of Service (DoS) attack on the affected device. Bug ID(s): CSCvs56401 , CSCvt39526 CVE ID: CVE-2020-3249 Security Impact Rating (SIR): High CVSS Base Score: 8.1 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Directory Traversal Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to execute code with root privileges. Bug ID(s): CSCvs56400 , CSCvt39535 CVE ID: CVE-2020-3248 Security Impact Rating (SIR): High CVSS Base Score: 8.1 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Directory Traversal Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious file to the REST API. A successful exploit could allow the attacker to write or execute arbitrary files on the system. Bug ID(s): CSCvs53502 , CSCvt39565 CVE ID: CVE-2020-3247 Security Impact Rating (SIR): High CVSS Base Score: 8.1 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Cisco UCS Director and UCS Director Express for Big Data Directory Traversal Vulnerability A vulnerability in the REST API of Cisco UCS Director and UCS Director Express for Big Data could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious zip file to the REST API. A successful exploit could allow the attacker to write or execute arbitrary files on the system with full administrative privileges. Bug ID(s): CSCvs53500 , CSCvt39561 CVE ID: CVE-2020-3239 Security Impact Rating (SIR): High CVSS Base Score: 8.1 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Cisco UCS Director Directory Traversal Vulnerability A vulnerability in the REST API endpoint of Cisco UCS Director could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the REST API of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to read arbitrary files on the system. Bug ID(s): CSCvs69022 CVE ID: CVE-2020-3252 Security Impact Rating (SIR): Medium CVSS Base Score: 6.5 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Workarounds o There are no workarounds that address these vulnerabilities. Fixed Software o Cisco has released free software updates that address the vulnerabilities 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 UCS Director Release 6.7.4.0 and UCS Director Express for Big Data Release 3.7.4.0. Exploitation and Public Announcements o The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in this advisory. Source o Cisco would like to thank Steven Seeley (mr_me) of Source Incite working with Trend Micro Zero Day Initiative for reporting the following vulnerabilities: CVE-2020-3243 CVE-2020-3240 CVE-2020-3250 CVE-2020-3239 CVE-2020-3247 CVE-2020-3248 CVE-2020-3249 Cisco would like to thank Steven Seeley (mr_me) of Source Incite for reporting the following vulnerabilities: CVE-2020-3251 CVE-2020-3252 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-ucsd-mult-vulns-UNfpdW4E Revision History o +---------+-----------------------+----------------+--------+-------------+ | Version | Description | Section | Status | Date | +---------+-----------------------+----------------+--------+-------------+ | | Updated information | Exploitation | | | | 1.1 | about the | and Public | Final | 2020-APR-17 | | | availability of | Announcements | | | | | exploit code. | | | | +---------+-----------------------+----------------+--------+-------------+ | 1.0 | Initial public | - | Final | 2020-APR-15 | | | release. | | | | +---------+-----------------------+----------------+--------+-------------+ - --------------------------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 iQIVAwUBXp0ZlGaOgq3Tt24GAQh8wQ//fvfhCKfes+YPd0fL85E9UCRGKP6hw9Bi t3WKHdEXE0YeJ5S52Sjtv8yLra6htOMfEMXeSO/sbRPSWXrY6wcQVXZnuC33W7s6 ui0POgc83W29HPfdfqRsaN6josedF0DbngIBjVkEYQxoPzhtWx9z7pjspFuTHA34 ohFe9wzTNyON1OtPmRYN4xX/4l97FObkHv+sEvJ0O3JzHvNsvmHkBZXbQtXI50gN POZFZ0lgQbVbr/0ZiRZdSupUFKTWMIkalemKlnhNtJY5qYKmjp4MoUgAXGmU8W5Y m98Vv2GxqDvCqbjSLiCT2QvFHkgezYYzoPuE5jvGvvq8Evx+sLNjlMRf8SEVP2tS oJc+5tIJHo0qdU9z6t1Hx8N4oPpiaKpT8k8uDs8O+WhZgp3zQaY7C79m9c+IRVRa Ckn6CShaAUzt1RTgoax1o73zB/xtRgW1iqMFU45098TrG1W6uiZA86CUuDybTwXV Ulks6pCU3PCKKa7+axidtbyY9BKIJmN5El2K/EN6kebs+EmNfkTpKyZao3G666Ar JUj4aNQqc7JO1KCJ4/wM8m+dn71sxIVIHyNYESYwJXQGyXmESNW9avz4Y3f3HeMb Iopnjq2fsnV2omwj0J3uvMrEvl1ex5RssKBQusnD/d9uXRiv4V101gQ19F4O9e+M HB4q0WH8abM= =XUrv -----END PGP SIGNATURE-----