Summary

• A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could allow an authenticated, remote attacker to inject and execute arbitrary commands with root privileges on an affected device.

  The vulnerability is due to insufficient validation of command input by the affected software. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to inject and execute arbitrary, system-level commands with root privileges on an 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://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cimc-injection

Affected Products

• Vulnerable Products

  This vulnerability affects the following Cisco products:

  • UCS C-Series Servers that are running Cisco IMC Software Release 2.0, Release 3.0 prior to Release 3.0(4d), or Release 3.1 prior to Release 3.1(3a)
  • UCS E-Series Servers that are running a Cisco IMC Software release prior to Release 3.2(6)
  • 5000 Series Enterprise Network Compute System (ENCS) Platforms that are running a Cisco IMC Software release prior to Release 3.2(6)

  
  

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.

  Cisco has confirmed that this vulnerability does not affect Cisco IMC Software for Cisco UCS B-Series Servers.

Workarounds

• There are no workarounds that address this vulnerability.

Fixed Software

• 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 recommends upgrading to the latest software release as indicated in the following sections.

  UCS C-Series Servers

  For Cisco UCS C-Series Servers, customers are advised to upgrade to an appropriate release as indicated in the following table:

  Cisco IMC Software Release	First Fixed Release
  1.4	Not vulnerable
  1.5	Not vulnerable
  2.0	Migrate to 3.0(4d)
  3.0	3.0(4d)
  3.1	3.1(3a)
  4.0	Not vulnerable

  Customers can download Cisco IMC Software from the Software Center on Cisco.com by doing the following:

  1. Click Browse all
  2. Navigate to Servers - Unified Computing > UCS C-Series Rack-Mount Standalone Server Software
  3. In the right pane, choose the appropriate Cisco UCS C-Series platform
  4. On the Select a Software Type page, click Unified Computing System (UCS) Server Firmware
  5. Access releases by using the left pane of the page

  UCS E-Series Servers

  Cisco fixed this vulnerability in Cisco IMC Software Release 3.2(6) for Cisco UCS E-Series Servers.

  Customers can download the software from the Software Center on Cisco.com by doing the following:

  1. Click Browse all
  2. Navigate to Servers - Unified Computing > UCS E-Series Software
  3. In the right pane, choose the appropriate Cisco UCS E-Series platform
  4. On the Select a Software Type page, click Unified Computing System (UCS) Server Firmware
  5. Access releases by using the left pane of the page

  5000 Series Enterprise Network Compute System Platforms

  Cisco fixed this vulnerability in Cisco IMC Software Release 3.2(6) for Cisco 5000 Series Enterprise Network Compute System (ENCS) Platforms.

  Customers can download the software from the Software Center on Cisco.com by doing the following:

  1. Click Browse all
  2. Navigate to Routers > Network Functions Virtualization > 5000 Series Enterprise Network Compute System
  3. In the right pane, choose the appropriate ENCS platform
  4. On the Select a Software Type page, click ENCS Software
  5. Access releases by using the left pane of the page

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 found during internal security testing.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cimc-injection

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	—	Final	2018-September-05

  Show Less

---