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AUSCERT External Security Bulletin Redistribution
ESB-2021.3501
Cisco Identity Services Engine File Download Vulnerability
21 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Identity Services Engine
Publisher: Cisco Systems
Operating System: Network Appliance
Impact/Access: Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40123
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-file-download-B3BR5KQA
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Cisco Identity Services Engine File Download Vulnerability
Priority: Medium
Advisory ID: cisco-sa-ise-file-download-B3BR5KQA
First Published: 2021 October 20 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvx91666
CVE Names: CVE-2021-40123
CWEs: CWE-266
Summary
o A vulnerability in the web-based management interface of Cisco Identity
Services Engine (ISE) could allow an authenticated, remote attacker with
administrative read-only privileges to download files that should be
restricted.
This vulnerability is due to incorrect permissions settings on an affected
device. An attacker could exploit this vulnerability by sending a crafted
HTTP request to the device. A successful exploit could allow the attacker
to download files that should be restricted.
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-ise-file-download-B3BR5KQA
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco devices if
they were running a vulnerable release of Cisco ISE.
For information about which Cisco software releases were vulnerable at the
time of publication, see the Fixed Software section of this advisory. See
the Details section in the bug ID(s) at the top of this advisory for the
most complete and current information.
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 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.
Fixed Releases
At the time of publication, the release information in the following table
was accurate. See the Details section in the bug ID at the top of this
advisory for the most complete and current information.
The left column lists Cisco software releases, and the right column
indicates whether a release was affected by the vulnerability described in
this advisory and which release included the fix for this vulnerability.
Cisco ISE First Fixed Release
Earlier than 2.6 Migrate to a fixed release.
2.6 2.6 P10
2.7 2.7 P5
3.0 3.0 P4
3.1 Not vulnerable.
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
o The Cisco 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 Alexander Polce Leary of AIG for reporting this
vulnerability.
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-ise-file-download-B3BR5KQA
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-OCT-20 |
+----------+---------------------------+----------+--------+--------------+
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