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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.2457
     Cisco Prime Network Registrar Privilege Escalation Vulnerability
                             21 September 2015

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Prime Network Registrar
Publisher:         Cisco Systems
Operating System:  Cisco
                   VMware ESX Server
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Mitigation
CVE Names:         CVE-2015-6296  

Original Bulletin: 
   http://tools.cisco.com/security/center/viewAlert.x?alertId=41041

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Vulnerability Alert

Cisco Prime Network Registrar Privilege Escalation Vulnerability

Threat Type: CWE-264: Permissions, Privileges, and Access Control

IntelliShield ID: 41041

Version: 1

First Published: 2015 September 17 21:02 GMT

Last Published: 2015 September 17 21:02 GMT

Port: Not available

CVE: CVE-2015-6296

Urgency: Unlikely Use

Credibility: Confirmed

Severity: Mild Damage

CVSS Base: 6.8

CVSS Temporal: 6.5

Version Summary: Cisco Prime Network Registrar contains a vulnerability that 
could allow an authenticated, local attacker to gain elevated privileges on a
targeted application. Updates are not available.

Description

A vulnerability in the default configuration of the Cisco Prime Network 
Registrar (CPNR) virtual appliance (OVA) which could allow an authenticated, 
local attacker to gain root privileges.

The vulnerability is due to an insecure default account present on the 
affected device. A local attacker could exploit the vulnerability by using the
insecure default account to gain additional privileges on the affected device.
If successful, the attacker could gain root privileges and possibly compromise
the affected device.

Cisco has confirmed the vulnerability; however, software updates are not 
available.

Warning Indicators

At the time this alert was first published, Cisco Prime Network Registrar 
versions 8.1(3.3), 8.2(3), and 8.3(2) were vulnerable. Other versions may also
be affected.

IntelliShield Analysis

To exploit this vulnerability, an attacker must authenticate to the targeted 
device with local account access. This access requirement reduces 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 CSCuw21825 for registered users, which contains 
additional details and an up-to-date list of affected product versions.

Impact

An authenticated, local attacker could exploit this vulnerability to elevate 
privileges and gain control of a targeted system.

Technical Information

The vulnerability is due to an insecure default account present on the 
affected device.

An attacker could exploit the vulnerability by using the insecure default 
account to gain additional privileges on the affected device. An exploit could
allow the attacker to gain root privileges and possibly compromise the 
targeted device

Safeguards

Administrators are advised to contact the vendor regarding future updates and
releases.

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

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 Prime Network Registrar 8.1 .3.3 | 8.2 .3 | 8.3 .2

Associated Products:

N/A

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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