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AUSCERT External Security Bulletin Redistribution
ESB-2020.1323.2
Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability
21 April 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Aironet 1540 Series Access Points
Aironet 1560 Series Access Points
Aironet 1800 Series Access Points
Aironet 2800 Series Access Points
Aironet 3800 Series Access Points
Aironet 4800 Series Access Points
Catalyst IW6300 Access Points
6300 Embedded Services Access Points
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Cross-site Request Forgery -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3261
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-mob-exp-csrf-b8tFec24
Revision History: April 21 2020: First fixed releases added for 8.9 and 8.10.
April 16 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability
Priority: High
Advisory ID: cisco-sa-mob-exp-csrf-b8tFec24
First Published: 2020 April 15 16:00 GMT
Last Updated: 2020 April 20 15:36 GMT
Version 1.1: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvq88209
CVE-2020-3261
CWE-352
CVSS Score:
8.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H/E:X/RL:X/RC:X
Summary
o A vulnerability in the web-based management interface of Cisco Mobility
Express Software could allow an unauthenticated, remote attacker to conduct
a cross-site request forgery (CSRF) attack on an affected system.
The vulnerability is due to insufficient CSRF protections for the web-based
management interface on an affected device. An attacker could exploit this
vulnerability by persuading a user with an active session on an affected
device to follow a malicious link. A successful exploit could allow the
attacker to perform arbitrary actions, including modifying the
configuration, with the privilege level of the user.
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-mob-exp-csrf-b8tFec24
This advisory is part of the April 2020 Cisco Aironet AP, Mobility Express,
and WLC Software Security Advisory Bundled Publication, which includes four
Cisco Security Advisories that describe four vulnerabilities. For a
complete list of the advisories and links to them, see Cisco Event
Response: April 2020 Cisco Aironet AP, Mobility Express and WLC Software
Security Advisory Bundled Publication .
Affected Products
o Vulnerable Products
This vulnerability affects the following Cisco products if they are running
a vulnerable release of Cisco Mobility Express Software:
Aironet 1540 Series Access Points
Aironet 1560 Series Access Points
Aironet 1800 Series Access Points
Aironet 2800 Series Access Points
Aironet 3800 Series Access Points
Aironet 4800 Series Access Points
Catalyst IW6300 Access Points
6300 Embedded Services Access Points
For more 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.
Cisco has confirmed that this vulnerability does not affect Cisco Catalyst
9100 Series Access Points.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o 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
In the following table, the left column lists Cisco software releases. The
center column indicates whether a release is affected by the vulnerability
described in this advisory and the first release that includes the fix for
this vulnerability. The right column indicates whether a release is
affected by all the vulnerabilities described in this bundle of advisories
and which release includes fixes for those vulnerabilities.
Cisco Mobility First Fixed Recommended Release for All
Express Major Release for This Vulnerabilities Described in This
Software Release Vulnerability Bundle of Advisories
8.0 and earlier Not vulnerable ^1 Not vulnerable ^1
8.1 8.8.130.0 8.5.161.0 ^2
8.2 8.8.130.0 8.5.161.0 ^2
8.3 8.8.130.0 8.5.161.0 ^2
8.4 8.8.130.0 8.5.161.0 ^2
8.5 8.8.130.0 8.5.161.0 ^2
8.6 8.8.130.0 8.8.130.0
8.7 8.8.130.0 8.8.130.0
8.8 8.8.130.0 8.8.130.0
8.9 8.10.105.0 8.10.121.0
8.10 8.10.105.0 8.10.121.0
1. Mobility Express is not supported in releases 8.0 and earlier.
2. If the deployment is based on a Mobility Express controller, Cisco
recommends migrating to Release 8.8.130.0.
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 This vulnerability was found during internal security testing.
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.
Related to This Advisory
o April 2020 Cisco Aironet AP, Mobility Express, and WLC Software Security
Advisory Bundled Publication
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-mob-exp-csrf-b8tFec24
Revision History
o +---------+-----------------------------+----------+--------+-------------+
| Version | Description | Section | Status | Date |
+---------+-----------------------------+----------+--------+-------------+
| 1.1 | Updated first fixed release | Fixed | Final | 2020-APR-20 |
| | for releases 8.9 and 8.10. | Releases | | |
+---------+-----------------------------+----------+--------+-------------+
| 1.0 | Initial public release. | - | Final | 2020-APR-15 |
+---------+-----------------------------+----------+--------+-------------+
- --------------------------END INCLUDED TEXT--------------------
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