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AUSCERT External Security Bulletin Redistribution
ESB-2018.2088.2
Multiple Vulnerabilities in Cisco Unified Contact Center Express
20 July 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Unified Contact Center Express
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Cross-site Request Forgery -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0403 CVE-2018-0402 CVE-2018-0401
CVE-2018-0400
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180718-uccx
Revision History: July 20 2018: Updated OS field
July 19 2018: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Multiple Vulnerabilities in Cisco Unified Contact Center Express
Medium
Advisory ID:
cisco-sa-20180718-uccx
First Published:
2018 July 18 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCvg70904
CSCvg70921
CSCvg70967
CSCvg70904,CSCvg70921,CSCvg70967,CSCvg71040
CVE-2018-0400
CVE-2018-0401
CVE-2018-0402
CVE-2018-0400,CVE-2018-0401,CVE-2018-0402,CVE-2018-0403
CWE-19
CWE-352
CWE-79
CVSS Score:
Base 6.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X
CVE-2018-0400
CVE-2018-0401
CVE-2018-0402
CVE-2018-0400,CVE-2018-0401,CVE-2018-0402,CVE-2018-0403
CWE-19
CWE-352
CWE-79
Summary
o Multiple vulnerabilities in the web-based management interface of Cisco
Unified Contact Center Express (Unified CCX) could allow an
unauthenticated, remote attacker to conduct cross-site scripting (XSS)
attacks against a user of the interface, conduct a cross-site request
forgery (CSRF) attack, or retrieve a cleartext password.
For more information about these vulnerabilities, see the Details section
of this advisory.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180718-uccx
Affected Products
o Vulnerable Products
These vulnerabilities affect Cisco Unified Contact Center Express (Unified
CCX). For information about affected software releases, consult the Cisco
bug IDs at the top 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.
Details
o Four vulnerabilities in Cisco Unified CCX could allow an unauthenticated,
remote attacker to conduct XSS attacks against a user of the interface,
conduct a CSRF attack, or retrieve a cleartext password.
The vulnerabilities are not dependent on one another; exploitation of one
of the vulnerabilities is not required to exploit another vulnerability. In
addition, a software release that is affected by one of the vulnerabilities
may not be affected by the other vulnerabilities.
Details about the vulnerabilities are as follows.
Cisco Unified Contact Center Express Stored Cross-Site Scripting
Vulnerability
A vulnerability in the web-based management interface of Cisco Unified
Contact Center Express (Unified CCX) could allow an unauthenticated, remote
attacker to conduct a stored XSS attack against a user of the web-based
interface of an affected application.
The vulnerability is due to insufficient validation of user-supplied input
by the web-based interface of an affected application. An attacker could
exploit this vulnerability by persuading a user of the interface to click a
crafted link. A successful exploit could allow the attacker to execute
arbitrary script code in the context of the interface or allow the attacker
to access sensitive browser-based information.
The Common Vulnerabilities and Exposures (CVE) ID for this vulnerability
is: CVE-2018-0400
The Common Vulnerability Scoring System (CVSS) Base score for this
vulnerability is: 6.1
The Cisco bug ID for this vulnerability is: CSCvg70904
Cisco Unified Contact Center Express Reflected Cross-Site Scripting
Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CCX
could allow an unauthenticated, remote attacker to conduct a reflected XSS
attack against a user of the web-based interface of an affected
application.
The vulnerability is due to insufficient validation of user-supplied input
by the web-based interface of an affected application. An attacker could
exploit this vulnerability by persuading a user of the interface to click a
crafted link. A successful exploit could allow the attacker to execute
arbitrary script code in the context of the interface or allow the attacker
to access sensitive browser-based information.
The CVE ID for this vulnerability is: CVE-2018-0401
The CVSS Base score for this vulnerability is: 6.1
The Cisco bug ID for this vulnerability is: CSCvg70967
Cisco Unified Contact Center Express Cross-Site Request Forgery
Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CCX
could allow an unauthenticated, remote attacker to conduct a CSRF attack
and perform arbitrary actions on an affected application.
The vulnerability is due to insufficient CSRF protections for the web-based
management interface of an affected device. An attacker could exploit this
vulnerability by persuading a user of the interface to follow a crafted
link. A successful exploit could allow the attacker to download, create,
modify, and delete metadata files that are part of the Repository Datastore
(RDS) on a targeted device via a web browser and with the privileges of the
user.
For additional information about cross-site request forgery attacks and
potential mitigation methods, see the action link in the right sidebar of
this advisory.
The CVE ID for this vulnerability is: CVE-2018-0402
The CVSS Base score for this vulnerability is: 6.3
The Cisco bug ID for this vulnerability is: CSCvg70921
Cisco Unified Contact Center Express Information Disclosure Vulnerability
A vulnerability in the web-based management interface of Cisco Unified CCX
could allow an unauthenticated, remote attacker to retrieve a cleartext
password.
The vulnerability occurs because the application prefills the password
field with a previously saved password from an internal database. An
attacker could exploit this vulnerability by viewing the HTML source of an
affected login form.
The CVE ID for this vulnerability is: CVE-2018-0403
The CVSS Base score for this vulnerability is: 5.3
The Cisco bug ID for this vulnerability is: CSCvg71040
Workarounds
o There are no workarounds that address these vulnerabilities.
Fixed Software
o For information about fixed software releases, consult the Cisco bug ID(s)
at the top of this advisory.
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.
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 vulnerabilities that are
described in this advisory.
Source
o Cisco would like to thank Filip Waeytens from NCI Agency Cyber Security for
reporting these vulnerabilities.
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.
Subscribe to Cisco Security Notifications
o Subscribe
Action Links for This Advisory
o Understanding Cross-Site Scripting (XSS) Threat Vectors
Related to This Advisory
o Cross-Site Scripting
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180718-uccx
Revision History
+----------+----------------------------+----------+---------+----------------+
| Version | Description | Section | Status | Date |
+----------+----------------------------+----------+---------+----------------+
| 1.0 | Initial public release. | -- | Final | 2018-July-18 |
+----------+----------------------------+----------+---------+----------------+
Legal Disclaimer
o 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.
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.
- --------------------------END INCLUDED TEXT--------------------
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