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                              CERT-Renater

                 Note d'Information No. 2017/VULN202
_____________________________________________________________________

DATE                : 06/07/2017

HARDWARE PLATFORM(S): Cisco ASR 5000 Series, 5500 Series, 5700
                                      Series.

OPERATING SYSTEM(S): Cisco StarOS, systems running Cisco Virtualized
                                 Packet Core Software.

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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-asrcmd
____________________________________________________________________

Cisco Security Advisory: Cisco StarOS CLI Command Injection Vulnerability

Advisory ID: cisco-sa-20170705-asrcmd

Revision: 1.0

For Public Release: 2017 July 5 16:00 GMT

Last Updated: 2017 July 5 16:00 GMT

CVE ID(s): CVE-2017-6707

CVSS Score v(3): 8.2 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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Summary
=======
A vulnerability in the CLI command-parsing code of the Cisco StarOS
operating system for Cisco ASR 5000 Series, 5500 Series, and 5700
Series devices and Cisco Virtualized Packet Core (VPC) Software could
allow an authenticated, local attacker to break from the StarOS CLI of
an affected system and execute arbitrary shell commands as a Linux root
user on the system.

The vulnerability exists because the affected operating system does not
sufficiently sanitize commands before inserting them into Linux shell
commands. An attacker could exploit this vulnerability by submitting a
crafted CLI command for execution in a Linux shell command as a root
user. A successful exploit could allow the attacker to break from the
StarOS CLI and execute arbitrary commands on the affected system as a
Linux root user.

Cisco has released software updates that address this vulnerability.
There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-asrcmd
["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-asrcmd"]

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+ CERT-RENATER          | tel : 01-53-94-20-44           +
+ 23 - 25 Rue Daviel    | fax : 01-53-94-20-41           +
+ 75013 Paris           | email: cert@support.renater.fr +
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