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Category:   Device (Firewall)  >   Cisco ASA Vendors:   Cisco
Cisco ASA Buffer Overflow in IKEv1/IKEv2 Processing Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1034997
SecurityTracker URL:
CVE Reference:   CVE-2016-1287   (Links to External Site)
Updated:  May 17 2016
Original Entry Date:  Feb 10 2016
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco ASA. A remote user can execute arbitrary code on the target system or cause the target system to reload.

A remote user can send specially crafted UDP packets via IPv4 or IPv6 to the target system to trigger a buffer overflow in the IKEv1 and IKEv2 processing code and cause the target system to reload or execute arbitrary code.

Systems configured to terminate IKEv1 or IKEv2 VPN connections are affected.

Systems configured in routed firewall mode and in either single or multiple context mode are affected.

Clientless SSL and AnyConnect SSL configurations are not affected.

The vendor has assigned bug IDs CSCux29978 and CSCux42019 to this vulnerability.

A demonstration exploit method is described at:

David Barksdale, Jordan Gruskovnjak, and Alex Wheeler of Exodus Intelligence reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system or cause the target system to reload.
Solution:   The vendor has issued a fix (8.4(7.30), 8.7(1.18), 9.0(4.38), 9.1(7), 9.2(4.5), 9.3(3.7), 9.4(2.4), 9.5(2.2)).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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