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AUSCERT External Security Bulletin Redistribution
ESB-2021.2629
Cisco Connected Mobile Experiences Strong Authentication
Requirements Enforcement Bypass
5 August 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Connected Mobile Experiences (CMX)
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1522
Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cmx-GkCvfd4
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Cisco Connected Mobile Experiences Strong Authentication Requirements
Enforcement Bypass
Priority: Medium
Advisory ID: cisco-sa-cmx-GkCvfd4
First Published: 2021 August 4 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvw72659
CVE Names: CVE-2021-1522
CWEs: CWE-255
Summary
o A vulnerability in the change password API of Cisco Connected Mobile
Experiences (CMX) could allow an authenticated, remote attacker to alter
their own password to a value that does not comply with the strong
authentication requirements that are configured on an affected device.
This vulnerability exists because a password policy check is incomplete at
the time a password is changed at server side using the API. An attacker
could exploit this vulnerability by sending a specially crafted API request
to the affected device. A successful exploit could allow the attacker to
change their own password to a value that does not comply with the
configured strong authentication requirements.
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-cmx-GkCvfd4
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco CMX releases
10.6.0, 10.6.1, 10.6.2, and 10.6.3.
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, Cisco CMX releases 10.6.3MR1 and later
contained the fix for this vulnerability.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Exploitation and Public Announcements
o 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
o Cisco would like to thank Conscia employees 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-cmx-GkCvfd4
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-AUG-04 |
+----------+---------------------------+----------+--------+--------------+
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