Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2017.2280.2
Apache Struts 2 Remote Code Execution Vulnerability
Affecting Multiple Cisco Products: September 2017
4 October 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Apache Struts 2 on Cisco Products
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12611
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170909-struts2-rce
Revision History: October 4 2017: Updated the Vulnerable Products table
September 11 2017: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Apache Struts 2 Remote Code Execution Vulnerability Affecting Multiple Cisco
Products: September 2017 Critical
Advisory ID: cisco-sa-20170909-struts2-rce
First Published: 2017 September 9 17:00 GMT
Last Updated: 2017 October 3 19:38 GMT
Version 1.10: Final
Workarounds: No workarounds available
CVE-2017-12611
CWE-20
Summary
On September 7, 2017, the Apache Software Foundation released a security
bulletin that disclosed a vulnerability in the Freemarker tag functionality of
the Apache Struts 2 package. The vulnerability could allow an unauthenticated,
remote attacker to execute arbitrary code on an affected system. The Apache
Software Foundation classifies the vulnerability as a Medium Severity
vulnerability. For more information about this vulnerability, refer to the
Details section of this advisory.
Multiple Cisco products incorporate a version of the Apache Struts 2 package
that is affected by this vulnerability.
The following Snort rules can be used to detect possible exploitation of this
vulnerability: Snort SIDs 44327 through 44330.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170909-struts2-rce
Affected Products
For information about whether a product is affected by this vulnerability,
refer to the Vulnerable Products and Products Confirmed Not Vulnerable
sections of this advisory. The Vulnerable Products section includes Cisco bug
IDs for each affected product. The bugs are accessible through the Cisco Bug
Search Tool and contain additional platform-specific information, including
any available workarounds and fixed software releases.
Note: Only Cisco products that include Struts are listed in the "Vulnerable
Products" or "Products Confirmed Not Vulnerable" sections. If a Cisco product
is not listed, then it does not include Struts and is therefore not affected.
Vulnerable Products
Cisco documents detailed information about fixed software releases in the
Cisco bugs listed in this table. The bugs are accessible through the Cisco Bug
Search Tool. When planning a software upgrade, customers should review the
bugs directly because the bugs will have the most current and up-to-date
information.
The following table lists Cisco products that are affected by the
vulnerability described in this advisory.
Product Cisco Bug ID Fixed Release Availability
Network Management and Provisioning
Cisco Digital Media Manager CSCvf89977 No fix expected (EoSWM) (19-Aug-2016)
Cisco MXE 3500 Series Media Experience Engines CSCvf89979 No fix expected (EoSWM) (2-Jan-2017)
Video, Streaming, TelePresence, and Transcoding Devices
Cisco Video Distribution Suite for Internet Streaming (VDS-IS) CSCvf89984 Fix pending
Cisco Hosted Services
Cisco Network Performance Analysis CSCvf89992 Product updated with Struts 2.3.34 (12-Sept-2017)
Collaboration and Social Media Cisco SocialMiner Cisco Unified MeetingPlace
Cisco WebEx Meetings Server
Endpoint Clients and Client Software Cisco WebEx Management - SuperAdmin
Control Panel
Network Application, Service, and Acceleration Cisco Data Center Network
Manager
Network and Content Security Devices Cisco Identity Services Engine (ISE)
Network Management and Provisioning Cisco Prime Central for Service Providers
Cisco Prime Collaboration Provisioning Cisco Prime Home Cisco Prime LAN
Management Solution - Solaris Cisco Prime License Manager Cisco Prime Network
Registrar IP Address Manager (IPAM) Cisco Prime Network Cisco Unified
Intelligence Center
Voice and Unified Communications Devices Cisco Business Edition 4000 Cisco
Emergency Responder Cisco Enterprise Chat and Email Cisco Finesse Cisco Hosted
Collaboration Mediation Fulfillment Cisco Hosted Collaboration Solution for
Contact Center Cisco MediaSense Cisco Unified Communications Manager IM &
Presence Service (formerly CUPS) Cisco Unified Communications Manager Cisco
Unified Contact Center Enterprise - Live Data server Cisco Unified Contact
Center Enterprise Cisco Unified Contact Center Express Cisco Unified E-Mail
Interaction Manager Cisco Unified Intelligent Contact Management Enterprise
Cisco Unified SIP Proxy Software Cisco Unified Survivable Remote Site
Telephony Manager Cisco Unified Web Interaction Manager Cisco Unity Connection
Cisco Virtualized Voice Browser
Video, Streaming, TelePresence, and Transcoding Devices Cisco Enterprise
Content Delivery System (ECDS)
Cisco Hosted Services Cisco Business Video Services Automation Software Cisco
Cloud Email Security Cisco Cloud Web Security Cisco Context Service Cisco
Deployment Automation Tool Cisco Network Device Security Assessment Service
Cisco Partner Support Service 1.x Cisco Prime Service Catalog Cisco Services
Provisioning Platform Cisco Smart Net Total Care Cisco Spark Cisco Tidal
Performance Analyzer Cisco Unified Service Delivery Platform Cisco WebEx
Network-Based Recording (NBR) Management
Details
A vulnerability in Apache Struts 2 could allow an unauthenticated, remote
attacker to execute arbitrary code on a targeted system.
The vulnerability is due to the unsafe use of writable expression values in
Freemarker content that is processed by the affected application. An attacker
could exploit the vulnerability by adding malicious values to writable
expressions that the attacker submits to the affected application for
processing. If successful, the attacker could execute arbitrary code in the
security context of the affected application on the targeted system.
This vulnerability has been assigned the following CVE ID: CVE-2017-12611
The Security Impact Rating (SIR) of this vulnerability is Critical.
Workarounds
Any workarounds that address this vulnerability will be documented in the
Cisco bugs, which are accessible through the Cisco Bug Search Tool.
Fixed Software
Updates for affected software releases will be published when they are
available and information about those updates will be documented in Cisco
bugs, which are accessible through the Cisco Bug Search Tool.
When Cisco releases software updates that address this vulnerability,
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/en/US/docs/general/warranty/English/EU1KEN_.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/en/US/support/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
To determine the affected and fixed releases for each vulnerable product,
refer to the Cisco bug identified for the product in the Vulnerable Products
section of this advisory. Cisco bugs are accessible through the Cisco Bug
Search Tool.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of this vulnerability against Cisco
products.
Public exploits are available for this vulnerability.
Source
On September 7, 2017, the Apache Software Foundation publicly disclosed this
vulnerability in the following security bulletin: S2-053
URL
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170909-struts2-rce
Version Description Section Status Date
1.10 Updated the Vulnerable Products table with information about fixes. Updated Summary, Affected Products, Vulnerable Products, and Fixed Software to "Final status" language. Summary, Affected Products, Vulnerable Products, Fixed Software Final 2017-October-03
1.9 Updated the list of Products Confirmed Not Vulnerable. Products Confirmed Not Vulnerable Interim 2017-September-28
1.8 Updated the lists of products for Vulnerable, Not Vulnerable, and Under Investigation sections. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-25
1.7 Updated the lists of products for Vulnerable, Not Vulnerable, and Under Investigation sections. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-21
1.6 Updated the lists of products for Vulnerable, Not Vulnerable, and Under Investigation sections. Under Affected Products added further clarification on products not listed. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-18
1.5 Updated the lists of products that are and are not vulnerable and the list of products that are under investigation. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-15
1.4 Updated the lists of products that are and are not vulnerable and the list of products that are under investigation. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-14
1.3 Updated the lists of products that are and are not vulnerable and the list of products that are under investigation. Also included new Snort signatures. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-13
1.2 Updated the lists of products that are and are not vulnerable and the list of products that are under investigation. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-12
1.1 Updated the lists of products that are and are not vulnerable and the list of products that are under investigation. Affected Products, Vulnerable Products, Products Confirmed Not Vulnerable Interim 2017-September-11
1.0 Initial public release. Interim 2017-September-09
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=aFxF
-----END PGP SIGNATURE-----