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AUSCERT External Security Bulletin Redistribution
ESB-2015.1558
Cisco Application and Content Networking System URL Page
Return Cross-Site Scripting Vulnerability
15 June 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Application and Content Networking System
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Resolution: Mitigation
CVE Names: CVE-2015-0774
Original Bulletin:
http://tools.cisco.com/security/center/viewAlert.x?alertId=39257
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Vulnerability Alert
Cisco Application and Content Networking System URL Page Return Cross-Site
Scripting Vulnerability
Threat Type: CWE-79: Cross-Site Scripting (XSS)
IntelliShield ID: 39257
Version: 1
First Published: 2015 June 09 17:01 GMT
Last Published: 2015 June 09 17:01 GMT
Port: Not available
CVE: CVE-2015-0774
Urgency: Unlikely Use
Credibility: Confirmed
Severity: Mild Damage
CVSS Base: 4.3
CVSS Version 2.0
CVSS Temporal: 4.1
Version Summary: Cisco Application and Content Networking System contains a
vulnerability that could allow an unauthenticated, remote attacker to conduct
cross-site scripting attacks. Updates are not available.
Description
A vulnerability in Cisco Application and Content Networking System (ACNS)
could allow an unauthenticated, remote attacker to conduct cross-site
scripting (XSS) attacks.
The vulnerability is due to insufficient validation of the URL of pages that
are not accessible to the end user that could be returned by an affected
device. An unauthenticated, remote attacker could exploit this vulnerability
by convincing a user to follow a malicious link designed to deliver crafted
JavaScript code. Processing the malicious link could allow the crafted
JavaScript code to be executed in the user's browser when the error page is
returned.
Cisco has confirmed the vulnerability; however, software updates are not
available.
Warning Indicators
At the time this alert was first published, Cisco ACNS Software version 5.5(9)
was vulnerable. Later versions may also be vulnerable.
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a
user to a malicious site and use misleading language or instructions to
persuade the user to follow the link.
June 17, 2015 is the last day that Cisco may release software maintenance
releases and bug fixes for the Cisco ACNS. Customers could review the
End-of-Sale and End-of-Life announcement at the following link: End-of-Life
Milestones and Dates for the Cisco Application and Content Networking System
(ACNS) Software Version 5.5. Customers are encouraged to migrate to the Cisco
Enterprise Content Delivery System (ECDS). Information about this product is
at the following link: ECDS
Cisco would like to thank Nirmal Kirubakaran for reporting this vulnerability.
Vendor Announcements
Cisco has released bug ID CSCuu70650 for registered users, which contains
additional details and an up-to-date list of affected product versions.
Impact
An unauthenticated, remote attacker could exploit this vulnerability to
execute arbitrary JavaScript code in the user's browser session in the context
of the affected site. A successful exploit could allow the attacker to access
sensitive browser-based information such as authentication cookies and
recently submitted data.
Technical Information
The vulnerability is due to insufficient validation of user-supplied input
submitted to and processed by an affected device.
An unauthenticated, remote attacker could exploit this vulnerability by
convincing a user to follow a malicious link. A successful exploit could allow
the attacker to execute arbitrary JavaScript code in the context of the
affected site or allow the attacker to access sensitive browser-based
information.
Safeguards
Administrators are advised to contact the vendor regarding future updates and
releases.
Users are advised not to open email messages from suspicious or unrecognized
sources. If users cannot verify that links or attachments included in email
messages are safe, they are advised not to open them.
Users should verify that unsolicited links are safe to follow.
For additional information about XSS attacks and the methods used to exploit
these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding
Cross-Site Scripting (XSS) Threat Vectors.
Administrators are advised to monitor affected systems.
Patches/Software
Software updates are not available.
Alert History
Initial Release
Product Sets
The security vulnerability applies to the following combinations of products.
Primary Products:
Cisco Application and Content Networking System (ACNS) Software 5.5 (9)
Associated Products:
N/A
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are
highlighted by analysts in the Cisco Threat Operations Center and represent a
subset of the comprehensive content that is available through Cisco Security
IntelliShield Alert Manager Service. This customizable threat and
vulnerability alert service provides security staff with access to timely,
accurate, and credible information about threats and vulnerabilities that may
affect their environment.
LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual
users; users may value alerts differently based upon their network
configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED
THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED
THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION
IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE
TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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