Cisco IP Phones Vulnerable to Remote Eavesdropping - BestCyberNews: Online News Presenter in the present world

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Cisco IP Phones Vulnerable to Remote Eavesdropping

A vulnerability in the firmware of the Cisco Small Business SPA 300 and 500 series IP phones could allow an unauthenticated, remote attacker to listen to the audio stream of an IP phone.

The security hole was discovered by Chris Watts of Tech Analysis. In July 2014, the researcher reported two other flaws impacting Cisco SPA300 and SPA500 series IP phones: a cross-site scripting (XSS) vulnerability (CVE-2014-3313), and a vulnerability that can be exploited by a local attacker to execute arbitrary commands (CVE-2014-3312). 

The vulnerability is due to improper authentication settings in the default configuration. An attacker could exploit this vulnerability by sending a crafted XML request to the affected device. An exploit could allow the attacker to listen to a remote audio stream or make phone calls remotely.

The vulnerability is due to improper authentication settings in the default configuration of the affected software.An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted XML request to a targeted device. 

An exploit could allow the attacker to access sensitive information by listening to a remote audio stream sent from the device. In addition, the attacker could make phone calls remotely.

An unauthenticated, remote attacker could exploit this vulnerability to listen to a remote audio stream from an affected device or to gain access to make phone calls remotely. A successful exploit could be used to conduct further attacks.

Cisco has confirmed the vulnerability; however, software updates are not available. Cisco has released bug ID CSCuo52482 for registered users that contains additional details and an up-to-date list of affected product versions.

Administrators Please Follow Below Recommendations:

  • Administrators are advised to enable XML Execution authentication in the configuration settings of affected devices.


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


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


  • 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.




Author Venkatesh Yalagandula Follow us Google + and Facebook and Twitter