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The remote device is missing a vendor-supplied security patch.
A vulnerability in the VPN authentication code that handles parsing of
the username from the certificate on the Cisco ASA firewall could allow
an unauthenticated, remote attacker to cause a reload of the affected
The vulnerability is due to parallel processing of a large number of
Internet Key Exchange (IKE) requests for which username-from-cert is
configured. An attacker could exploit this vulnerability by sending a
large number of IKE requests when the affected device is configured with
the username-from-cert command. An exploit could allow the attacker to
cause a reload of the affected device, leading to a denial of service
See also :
Apply the relevant patch referenced in Cisco Bug Id CSCua91108.
Risk factor :
Medium / CVSS Base Score : 5.4
CVSS Temporal Score : 4.7
Public Exploit Available : true
Nessus Plugin ID: 72485 ()
Bugtraq ID: 63262
CVE ID: CVE-2013-5544
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