Cisco Security Advisory
Click Icon to Copy Verbose Score
AV:L/AC:L/Au:S/C:C/I:C/A:C/E:F/RL:OF/RC:C
-
A vulnerability in the command-line interface (CLI) of the Cisco Aironet 1850 Series Access Point device could allow an authenticated, local attacker to obtain elevated privileges to the restricted shell on the device.
The vulnerability is due to a lack of proper escape protections when validating CLI commands entered at the device prompt. An authenticated attacker could exploit this vulnerability by entering malicious commands at the CLI to obtain access to the restricted shell. An exploit could allow the attacker to obtain root-level privileges on the affected device.
Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151005-aironet
-
If the AAA server logs include records indicating that an authenticated user is performing actions at a higher privilege level than their originally assigned user role, this may indicate that the affected device has been compromised by this vulnerability. In particular, this vulnerability can allow a user to gain root-level privileges. Therefore, commands executed with root-level privileges should be reviewed in detail.
-
No workarounds are available.
-
When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
-
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
-
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
-
Show LessVersion Description Section Status Date 1.0 Initial public release. NA Final 2015-October-05
-
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. CISCO EXPECTS TO UPDATE THIS DOCUMENT AS NEW INFORMATION BECOMES AVAILABLE.
A stand-alone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy, and may lack important information or contain factual errors. The information in this document is intended for end-users of Cisco products.