A vulnerability in the Safe Search enforcement component of Cisco ASA CX Context-Aware Security could allow an unauthenticated, remote attacker to bypass security policy enforced by the affected component.
The vulnerability is due to improper implementation of the logic that should perform the filtering action. An attacker could exploit this vulnerability by sending a crafted HTTP request through the affected system.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker must have the ability to send a crafted HTTP requests through a targeted device which may reside on trusted, internal networks in which the attacker would likely need access to. This access requirement decreases the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Customers are advised to consult Cisco bug ID CSCui94622 for the most complete list of affected product versions.
Vulnerable ProductsAt the time this alert was first published, Cisco ASA CX Context-Aware Security Software versions 9.0.2-68 and prior were vulnerable. Later releases of Cisco ASA CX Context-Aware Security Software may also be vulnerable.
Products Confirmed Not VulnerableNo other Cisco products are currently known to be affected by these vulnerabilities.
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.
Software updates are not available.
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.
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 Release NA Final 2013-Nov-04
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