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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.2190
       Cisco Prime Infrastructure Privilege Escalation Vulnerability
                              21 August 2015

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

Product:           Cisco Prime Infrastructure
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Mitigation
CVE Names:         CVE-2015-4331  

Original Bulletin: 
   http://tools.cisco.com/security/center/viewAlert.x?alertId=40553

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Vulnerability Alert

Cisco Prime Infrastructure Privilege Escalation Vulnerability

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

IntelliShield ID: 40553

Version: 1

First Published: 2015 August 20 13:45 GMT

Last Published: 2015 August 20 13:45 GMT

Port: Not available

CVE: CVE-2015-4331

Urgency: Unlikely Use

Credibility: Confirmed

Severity: Mild Damage

CVSS Base: 4.0

CVSS Version 2.0

CVSS Temporal: 3.8

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

Description

A vulnerability in the Cisco Prime Infrastructure (PI) username storage and 
authentication process could allow an authenticated, remote attacker to gain 
elevated privileges on a targeted system.

The vulnerability occurs because the affected software saves case-sensitive 
usernames and performs case-sensitive string comparisons. An attacker could 
exploit this vulnerability during authentication by entering a username that 
contains characters in cases different from the combination registered on the
affected software. If the Cisco PI is configured for external authentication 
using a AAA server, the login will succeed but the affected software will 
assign default authorizations to the user who is logged in. A successful 
exploit could allow the attacker to access the targeted system and elevate 
privileges in the application.

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

Warning Indicators

Cisco Prime Infrastructure versions 1.4(0.45) and prior are vulnerable.

IntelliShield Analysis

To exploit this vulnerability, an attacker must authenticate to the targeted 
device. A successful exploit could be accomplished if the affected software is
configured for external authentication. These access requirements reduce 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 CSum59958 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 gain 
elevated privileges on a targeted system.

Technical Information

The vulnerability occurs because the affected software saves case-sensitive 
usernames and performs case-sensitive username string comparisons.

An attacker could exploit this vulnerability during authentication by entering
a username that contains characters in cases different from the combination 
registered on the affected software. A successful exploit could allow the 
attacker to access the targeted system, elevate privileges in the application,
and conduct further attacks.

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 Infrastructure 1.4 .0.45

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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