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AUSCERT External Security Bulletin Redistribution
ESB-2015.1548
Cisco FireSIGHT Management Center Dashboard Deletion Vulnerability and
Cisco FireSIGHT Management Center Cross-Site Scripting Vulnerability
15 June 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco FireSIGHT System Software
Publisher: Cisco Systems
Operating System: Cisco
VMware ESX Server
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0773 CVE-2015-0737
Original Bulletin:
http://tools.cisco.com/security/center/viewAlert.x?alertId=39256
http://tools.cisco.com/security/center/viewAlert.x?alertId=38883
Comment: This bulletin contains two (2) Cisco Systems security advisories.
Note: The vendor advises no updates are currently available to address
CVE-2015-0737, and has provided mitigation information in the
iterim.
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Vulnerability Alert
Cisco FireSIGHT Management Center Dashboard Deletion Vulnerability
Threat Type: CWE-399: Resource Management Errors
IntelliShield ID: 39256
Version: 1
First Published: 2015 June 09 16:06 GMT
Last Published: 2015 June 09 16:06 GMT
Port: Not available
CVE: CVE-2015-0773
Urgency: Unlikely Use
Credibility: Confirmed
Severity: Harassment
CVSS Base: 4.0
CVSS Version 2.0
CVSS Temporal: 3.3
Version Summary: Cisco FireSIGHT Management Center contains a vulnerability
that could allow an authenticated, remote attacker to make unauthorized
modifications on a targeted device. Updates are available.
Description
A vulnerability in management interface used to delete VPNs in the Cisco
FireSIGHT Management Center could allow an authenticated, remote attacker with
limited user permissions to delete another user's VPN dashboard.
The vulnerability occurs because the product does not properly validate the
deletion request. An attacker could exploit this vulnerability by tampering
with a management session and modifying the deletion request. An exploit could
allow the attacker to delete dashboards that the user account should not be
able to modify.
Cisco has confirmed the vulnerability and released software updates.
Warning Indicators
At the time this alert was first published, Cisco FireSIGHT System Software
versions 5.3.1.3 and 6.0.0 were vulnerable. Later versions of Cisco FireSIGHT
System Software may also be vulnerable.
IntelliShield Analysis
To exploit this vulnerability, an attacker must authenticate to the targeted
device. This access requirement decreases the likelihood of a successful
exploit.
Cisco indicates through the CVSS score that functional exploit code exists;
however, the code is not known to be publicly available.
Vendor Announcements
Cisco has released bug ID CSCut67078 for registered users, which contains
additional details and an up-to-date list of affected product versions.
Impact
An authenticated, remote attacker could exploit this vulnerability to delete
the VPN dashboard of a targeted user, which could result in a denial of
service (DoS) condition.
Technical Information
The vulnerability is due to improper validation of the deletion request by an
affected device.
An authenticated, remote attacker could exploit this vulnerability by
tampering with a management session and modifying the deletion request. An
exploit could allow the attacker to delete another user's VPN dashboard, which
could result in a DoS condition.
Safeguards
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to allow only privileged users to access
administration or management systems.
Administrators are advised to monitor affected systems.
Patches/Software
Cisco customers with active contracts can obtain updates through the Software
Center at the following link: Cisco. Cisco customers without contracts can
obtain upgrades by contacting the Cisco Technical Assistance Center at
1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
Alert History
Initial Release
Product Sets
The security vulnerability applies to the following combinations of products.
Primary Products:
Cisco Cisco FireSIGHT System Software 5.3 .1.3 | 6.0 .0
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.
- -------------------------------------------------------------------------
Vulnerability Alert
Cisco FireSIGHT Management Center Cross-Site Scripting Vulnerability
Threat Type: CWE-79: Cross-Site Scripting (XSS)
IntelliShield ID: 38883
Version: 1
First Published: 2015 June 08 21:52 GMT
Last Published: 2015 June 08 21:52 GMT
Port: Not available
CVE: CVE-2015-0737
Urgency: Unlikely Use
Credibility: Confirmed
Severity: Mild Damage
CVSS Base: 4.3
CVSS Version 2.0
CVSS Temporal: 4.1
Version Summary: Cisco FireSIGHT Management Center contains a vulnerability
that could allow an unauthenticated, remote attacker to conduct cross-site
scripting attacks. Updates are not available.
Description
A vulnerability in the Cisco FireSIGHT Management Center could allow an
unauthenticated, remote attacker to perform cross-site scripting (XSS)
attacks.
The vulnerability is due to insufficient input validation of some parameters
passed via HTTP GET or POST methods. An attacker could exploit this
vulnerability by intercepting the user packets and injecting malicious code. A
successful exploit could allow the attacker to execute arbitrary script code
in the context of the affected site or allow the attacker to access sensitive
browser-based information.
Cisco has confirmed the vulnerability; however, software updates are not
available.
Warning Indicators
At the time this alert was first published, Cisco FireSIGHT System Software
version 5.3.1.1 was vulnerable. Later versions of Cisco FireSIGHT System
Software 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 provided link.
Cisco indicates through the CVSS score that functional exploit code exists;
however, the code is not known to be publicly available.
Vendor Announcements
Cisco has released bug ID CSCuu11099 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 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 input validation of some parameters
passed to an affected device via HTTP GET or POST methods.
An unauthenticated, remote attacker could exploit this vulnerability by
intercepting the user packets and injecting malicious code. A successful
exploit could allow the attacker to execute arbitrary script 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 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 Cisco FireSIGHT System Software 5.3 .1.1
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.
- --------------------------END INCLUDED TEXT--------------------
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