Cisco Security Advisory
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A vulnerability in the local status page functionality of the Cisco Meraki MR, MS, MX, Z1, and Z3 product lines could allow an authenticated, remote attacker to modify device configuration files.
The vulnerability occurs when handling requests to the local status page. An exploit could allow the attacker to establish an interactive session to the device with elevated privileges. The attacker could then use the elevated privileges to further compromise the device or obtain additional configuration data from the device that is being exploited.
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-20181107-meraki
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Vulnerable Products
All Cisco Meraki products in the following list are affected by this vulnerability when the local status page feature is enabled and the device is running a software release prior to a fixed release listed in the Fixed Software section of this advisory:
- MR devices
- MS devices
- MX devices (includes physical devices and the vMX100 virtual appliance)
- Z1 and Z3 devices
Note: The local status page feature is enabled by default on all Cisco Meraki software releases for the products in the preceding list.
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 any Cisco wireless products except the Cisco Meraki products listed in the Vulnerable Products section.
Cisco has confirmed that this vulnerability does not affect the following Cisco Meraki products:
- Cisco Meraki Insight (MI)
- Cisco Meraki MC family of VoIP phones
- Cisco Meraki MV family of security cameras
- Cisco Meraki Systems Manager (SM)
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Although there are no workarounds that will allow customers to continue using the local status page and eliminate the attack vector for this vulnerability, disabling the local status page would eliminate the attack vector and prevent the vulnerability from being exploited. Customers are advised to consider their own environment needs to determine whether disabling the local status page is a feasible mitigation for preventing exploitation of unpatched devices.
Customers with access to the Meraki Dashboard can use the following instructions to disable the local status page: Disabling the Local Status Page.
Note: Disabling the local status page can result in limited functionality in some scenarios. Consult the preceding link for information about the possible negative impact of disabling the local status page.
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Cisco Meraki has released software updates that address the vulnerability described in this advisory. Cisco Meraki provides software updates for all devices with a valid and active license, and there is no other requirement to receive such updates, as described in our End Customer Agreement. Devices without a valid, active license will not receive any software upgrades. If you require a new license, please contact your sales team or representative. The contact information is in the Meraki Dashboard under Help > Get Help.
The policy and procedure for devices that have reached the end-of-support milestone are detailed on the Support Policies page.
Fixed Releases
Product Fixed Release Meraki MR
MR 24 firmware - 24.13 or later
MR 25 firmware - 25.11 or later
Meraki MS
MS 9 firmware - 9.37 or later
MS 10 firmware - 10.20 or later
Meraki MX and Meraki Z1/Z3 MX 13 firmware - 13.32 or later
MX 14 firmware - 14.25 or later MX 15 firmware - 15.7 or later
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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.
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This vulnerability was found by an external researcher and reported to Cisco Meraki through the Cisco Meraki Security Vulnerability Rewards Program.
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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.
The Cisco Meraki Security Vulnerability Rewards Program page describes this program and how to participate.
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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2018-November-07
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