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Cisco AnyConnect User Interface Dialog Rendered When Connecting to Arbitrary Hosts Vulnerability

Cisco-SA-20150115-CVE-2014-3314 · Medium · Published · Updated

A vulnerability in Cisco AnyConnect for Android and Mac OS X could allow an unauthenticated, remote attacker to force the rendering of an authentication form in the client. The vulnerability is due to insufficient validation of the type of host to which AnyConnect establishes a connection. An attacker could exploit this issue by convincing a user to connect with AnyConnect to a malicious host. That host would then trick the user into sending valid credentials to the host. If successful, the attacker could discover login credentials for the user. Cisco has confirmed the vulnerability in a security notice and has released updated software. To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link. Cisco indicates through the CVSS score that proof-of-concept exploit code exists; however, the code is not known to be publicly available.

Cisco advisory ·CSAF JSON

Workarounds

Administrators are advised to apply the appropriate updates.

Administrators are advised to allow only trusted users to have network access.

Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

Administrators can help protect affected systems from external attacks by using a solid firewall strategy.

Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.

Administrators are advised to monitor affected systems.

CVEsCVE-2014-3314
Cisco Bug IDsCSCuo24931, CSCuo24940
CVSS ScoreBase 4.3
Base 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N/E:POC/RL:U/RC:C
Product Names From Source
Cisco AnyConnect Secure Mobility Client, Cisco Secure Client

Related Products

Product CVE Evidence
Cisco Secure Client CVE-2014-3314 Cisco OpenVuln
Cisco AnyConnect Secure Mobility Client CVE-2014-3314 Cisco OpenVuln