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AUSCERT External Security Bulletin Redistribution
ESB-2018.3498
Cisco Meraki Local Status Page Privilege Escalation Vulnerability
8 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Meraki Local Status
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0284
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-meraki
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Priority: High
Advisory ID: cisco-sa-20181107-meraki
First Published: 2018 November 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
CVE-2018-0284
CVSS Score:
Base 8.8
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
*
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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-meraki
Affected Products
* 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)
Workarounds
* 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.
Fixed Software
* 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
MX 13 firmware - 13.32 or later
Meraki MX and Meraki Z1/Z3 MX 14 firmware - 14.25 or later
MX 15 firmware - 15.7 or later
Exploitation and Public Announcements
* 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
* This vulnerability was found by an external researcher and reported to
Cisco Meraki through the Cisco Meraki Security Vulnerability Rewards
Program.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-meraki
Revision History
*
+----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|---------+---------------------------+---------+--------+-------------------|
| 1.0 | Initial public release. | - | Final | 2018-November-07 |
+----------------------------------------------------------------------------+
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