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AUSCERT External Security Bulletin Redistribution
ESB-2019.3727
Cisco Unified Contact Center Express HTTP Response Splitting Vulnerability
4 October 2019
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AusCERT Security Bulletin Summary
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Product: Cisco Unified Contact Center Express
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Provide Misleading Information -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-15259
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-uccx-http
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Cisco Unified Contact Center Express HTTP Response Splitting Vulnerability
Priority: Medium
Advisory ID: cisco-sa-20191002-uccx-http
First Published: 2019 October 2 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvr21771
CVE-2019-15259
CWE-113
CVSS Score:
6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in Cisco Unified Contact Center Express (UCCX) Software
could allow an unauthenticated, remote attacker to conduct an HTTP response
splitting attack.
The vulnerability is due to insufficient input validation of some
parameters that are passed to the web server of the affected system. An
attacker could exploit this vulnerability by convincing a user to follow a
malicious link or by intercepting a user request on an affected device. A
successful exploit could allow the attacker to perform cross-site scripting
attacks, web cache poisoning, access sensitive browser-based information,
and similar exploits.
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-20191002-uccx-http
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco UCCX Software
releases earlier than 11.6(2).
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o 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.
Fixed Releases
At the time of publication, Cisco UCCX Software releases 11.6(2) and later
contained the fix for this vulnerability.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
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 vulnerability that is
described in this advisory.
Source
o This vulnerability was found during internal security testing.
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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20191002-uccx-http
Revision History
o +---------+--------------------------+---------+--------+-----------------+
| Version | Description | Section | Status | Date |
+---------+--------------------------+---------+--------+-----------------+
| 1.0 | Initial public release. | - | Final | 2019-October-02 |
+---------+--------------------------+---------+--------+-----------------+
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