A vulnerability in the command-line interpreter of Cisco Aironet 1800, 2800, and 3800 Series Access Points could allow an authenticated, local attacker to inject commands in the Linux shell. The commands could be executed with root-level privileges.
The vulnerability is due to improper sanitization of user-supplied input for parameters of command-line interface (CLI) commands. An attacker could exploit this vulnerability by authenticating to the affected device and executing a subset of CLI commands with crafted input for those parameters. A successful exploit could allow the attacker to execute Linux shell commands with root-level privileges on the affected device.
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: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160606-aap
Vulnerable ProductsThe following Cisco Aironet Access Points running Cisco Aironet Access Point Software Release 8.2(100.0) are vulnerable:
- Aironet 1830e Access Point
- Aironet 1830i Access Point
- Aironet 1850e Access Point
- Aironet 1850i Access Point
- Aironet 2800 Series Access Points
- Aironet 3800 Series Access Points
Products Confirmed Not VulnerableNo other Cisco products are currently known to be affected by this vulnerability.
There are no workarounds that address this vulnerability.
This vulnerability is fixed in Cisco Aironet Access Point Software releases 8.2(110.0) and later. Cisco provides information about fixed software in Cisco bugs, which are accessible through the Cisco Bug Search Tool.
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 upgrade 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.
This vulnerability was found during Cisco internal security testing.
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.
Version Description Section Status Date 1.0 Initial public release. — Final 2016-June-06
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