Cisco Adaptive Security Appliance Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are not available.
A vulnerability in the auto-update feature of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause a reload of the ASA.
The vulnerability is due to insufficient input validation of auto-update data. An attacker could exploit this vulnerability by submitting crafted data to the auto-update process. An exploit could allow the attacker to cause the ASA to reload.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
At the time this alert was first published, Cisco ASA Software Release 18.104.22.168 and prior were vulnerable. Later releases of Cisco ASA Software may also be vulnerable.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Cisco released a security notice at the following link: CVE-2013-5568
Customers are advised to consult Cisco bug ID CSCui33308 for the most complete list of affected product versions.
An unauthenticated, remote attacker could exploit this vulnerability to cause an affected device to reload, resulting in a denial of service (DoS) condition.
The vulnerability is due to insufficient input validation of auto-update data by the auto-update feature used by an affected device.
An unauthenticated, remote attacker could exploit this vulnerability by submitting crafted data to the auto-update process. An exploit could allow the attacker to cause the ASA to reload, resulting in a DoS condition.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
The security vulnerability applies to the following combinations of products.
Cisco Adaptive Security Appliance (ASA) Software
9.0 .1, .2, .2.10, .3, .3.6
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