Summary

• A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to bypass authorization and access system files.

  This vulnerability is due to improper access control in the web-based management interface of an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to list, download, and delete certain files that they should not have access to.

  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-ise-access-contol-EeufSUCx

Affected Products

• Vulnerable Products

  This vulnerability affects Cisco ISE.

  For information about which Cisco software releases are vulnerable, see the Fixed Software section 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

• 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 with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.

  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.

  The Cisco Support and Downloads page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.

  When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories 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

  In the following table(s), the left column lists Cisco software releases. The right column indicates whether a release is affected by the vulnerability that is described in this advisory and the first release that includes the fix for this vulnerability. Customers are advised to upgrade to an appropriate fixed software release as indicated in this section.

  Cisco ISE Release	First Fixed Release
  2.7 and earlier	Not vulnerable
  3.0	Not vulnerable
  3.1	3.1P6
  3.2	3.2P1

  Note: Cisco ISE releases 3.1P4 and 3.2 reduce the impact of this vulnerability by preventing files from being downloaded. The files can still be listed and deleted. This fix is tracked in CSCwb75965.

  Note: Cisco ISE releases 3.1P4 and 3.2P1 further reduce the impact of this vulnerability by limiting the accessible files to the localdisk folder only. For more information about the localdisk folder, see the ISE 3.1 Release Notes. This fix is tracked in CSCwc62413.

  For instructions on upgrading a device, see the Upgrade Guides located on the Cisco Identity Service Engine support page.

  The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.

Exploitation and Public Announcements

• The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability that is described in this advisory.

  The Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory.

Source

• Cisco would like to thank Davide Virruso of Yoroi for reporting the vulnerability associated with defect CSCwc62419.

  Cisco would like to thank Antonio López and Víctor Campos for reporting the vulnerability associated with defect CSCwb75965.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-access-contol-EeufSUCx

Revision History

• Version	Description	Section	Status	Date
  1.6	Updated fixed release information. Added that proof-of-concept code is now available.	Fixed Releases and Exploitation and Public Announcements	Final	2023-MAR-31
  1.5	Updated fixed release information for 3.2P1 and patch information for 3.1P5.	Summary and Fixed Software	Interim	2023-JAN-24
  1.4	Updated information about fixed releases.	Fixed Releases	Interim	2023-JAN-24
  1.3	Updated source to include additional researchers. Added the defect CSCwb75965 to the header.	Source and Header	Interim	2022-NOV-17
  1.2	Updated CSCwc62413 fix information.	Fixed Releases	Interim	2022-NOV-15
  1.1	Updated the name of the researcher.	Source	Interim	2022-NOV-14
  1.0	Initial public release.	-	Interim	2022-NOV-02

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