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AUSCERT External Security Bulletin Redistribution
Cisco Unified Communications Manager root Shell Access Local
Privilege Escalation Vulnerability
12 May 2015
AusCERT Security Bulletin Summary
Product: Cisco Unified Communications Manager
Publisher: Cisco Systems
Operating System: Cisco
VMware ESX Server
Impact/Access: Root Compromise -- Existing Account
CVE Names: CVE-2015-0717
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Cisco Unified Communications Manager root Shell Access Local Privilege
Threat Type: CWE-264: Permissions, Privileges, and Access Control
IntelliShield ID: 38763
First Published: 2015 May 08 21:01 GMT
Last Published: 2015 May 08 21:01 GMT
Port: Not available
Urgency: Unlikely Use
Severity: Moderate Damage
CVSS Base: 6.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal: 5.2
Version Summary: Cisco Unified Communications Manager contains a vulnerability
that could allow an authenticated, local attacker to execute arbitrary
commands as the root user. Updates are available.
A vulnerability in the local read file of the Cisco Unified Communications
Manager could allow an authenticated, local attacker to execute commands and
obtain an interactive Linux shell as the root user.
The vulnerability is due to a failure to properly sanitize user input. An
attacker could exploit this vulnerability by inserting Linux shell commands
into a parameter using common techniques. A successful exploit could allow the
attacker to execute any command on the Linux shell as the root user, which
could result in a complete system compromise.
Cisco has confirmed the vulnerability and released software updates.
At the time this alert was first published, Cisco Unified Communications
Manager 10.0(1.10000.12) was vulnerable. Other releases of Cisco Unified
Communications Manager may also be affected.
To exploit this vulnerability, an attacker must authenticate and have local
access to the targeted device. These 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.
Cisco has released bug ID CSCut19546 for registered users, which contains
additional details and an up-to-date list of affected product versions.
An authenticated, local attacker could exploit this vulnerability to execute
arbitrary commands and gain complete access to the underlying operating system
of an affected device by obtaining an interactive Linux shell as the root
user. A successful exploit could be used to conduct further attacks.
The vulnerability is due to improper sanitization of user-supplied input
processed by an affected device.
An authenticated, local attacker could exploit this vulnerability by inserting
Linux shell commands into a parameter on a targeted device. A successful
exploit could allow the attacker to execute any command on the Linux shell as
the root user, which could result in a complete system compromise.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access local
Administrators are advised to allow only privileged users to access
administration or management systems.
Administrators are advised to monitor affected systems.
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 email@example.com.
The security vulnerability applies to the following combinations of products.
Cisco Cisco Unified Communications Manager 10.0 (1.10000.12)
Associated Products: N/A
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