ESB-2018.2018.2 - UPDATE [Cisco] Cisco IP Phones: Execute arbitrary code/commands - Existing account 2018-07-13
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AUSCERT External Security Bulletin Redistribution
ESB-2018.2018.2
Cisco IP Phone 6800, 7800, and 8800 Series with
Multiplatform Firmware Web UI Command Injection
Vulnerability
13 July 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco IP Phones
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: None
CVE Names: CVE-2018-0341
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-phone-webui-inject
Revision History: July 13 2018: Cisco now advise that a fix will be released
in August 2018.
July 12 2018: Initial Release
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Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware Web UI
Command Injection Vulnerability
Severity: High
Advisory ID: cisco-sa-20180711-phone-webui-inject
First Published: 2018 July 11 16:00 GMT
Last Updated: 2018 July 12 13:57 GMT
Version 1.1: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvi51426
CVE-2018-0341
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
CVE-2018-0341
Summary
* A vulnerability in the web-based UI of Cisco IP Phone 6800, 7800, and 8800
Series with Multiplatform Firmware could allow an authenticated, remote
attacker to perform a command injection and execute commands with the
privileges of the web server.
The vulnerability is due to insufficient input validation. An attacker
could exploit this vulnerability by including arbitrary shell commands in a
specific user input field.
Cisco will release 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-20180711-phone-webui-inject
Affected Products
* Vulnerable Products
This vulnerability affects the following Cisco products running a
Multiplatform Firmware release prior to Release 11.2(1):
+ IP Phone 6800 Series with Multiplatform Firmware
+ IP Phone 7800 Series with Multiplatform Firmware
+ IP Phone 8800 Series with Multiplatform Firmware
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
* There are no workarounds that address this vulnerability.
Fixed Software
* Cisco will release 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
This vulnerability is fixed in firmware Release 11.2(1), which will be
available in August 2018.
When they are available, the firmware updates can be downloaded from the
Software Center on Cisco.com by navigating to Products > Collaboration
Endpoints > IP Phones > IP Phones with Multiplatform Firmware.
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 during internal security testing.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180711-phone-webui-inject
Revision History
*
+-----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|---------+--------------------------------+----------+--------+--------------|
| 1.1 | Added information about fixed | Fixed | Final | 2018-July-12 |
| | release availability. | Software | | |
|---------+--------------------------------+----------+--------+--------------|
| 1.0 | Initial public release. | ? | Final | 2018-July-11 |
+-----------------------------------------------------------------------------+
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Legal Disclaimer
* THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information
or contain factual errors. The information in this document is intended for
end users of Cisco products.
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