Cisco Security Advisory
Cisco Adaptive Security Appliance Information Disclosure Vulnerability
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AV:N/AC:L/Au:N/C:P/I:N/A:N/E:F/RL:OF/RC:C
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A vulnerability in the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to access sensitive data, including the ASA Software version that is currently running on the appliance.
The vulnerability occurs because the Cisco ASA does not sufficiently protect sensitive data during a Cisco AnyConnect client authentication attempt. An attacker could exploit the vulnerability by attempting to authenticate to the Cisco ASA with AnyConnect.
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: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160115-asa
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Vulnerable Products
All Cisco ASA hardware platforms are vulnerable when running Cisco ASA Software prior to a fixed release indicated in Cisco bug ID CSCuo65775 (registered customers only).Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this vulnerability.
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Workarounds are not available.
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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.
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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.
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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.
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Show LessVersion Description Section Status Date 1.2 Clarified what information could be disclosed Summary Final 2016-February-03 1.1 Clarified vulnerable hardware and software versions Vulnerable Products Final 2016-January-22 1.0 Initial public release - Final 2016-January-15
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