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Cisco Small Business SPA300 and SPA500 Series IP Phones Unauthenticated Remote Dial Vulnerability

Cisco-SA-20150319-CVE-2015-0670 · Medium · Published · Updated

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 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. Cisco has confirmed the vulnerability; however, software updates are not available. To exploit this vulnerability, an attacker may need access to trusted, internal networks behind a firewall to send crafted XML requests to the targeted device. This access requirement may reduce the likelihood of a successful exploit. Cisco would like to thank Chris Watts of Tech Analysis for reporting this vulnerability. Cisco plans to release new software that addresses this vulnerability by April 10, 2015.

Cisco advisory · CSAF JSON

Workarounds

Administrators are advised to contact the vendor regarding future updates and releases.

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.

CVEsCVE-2015-0670
Cisco Bug IDsCSCuo52482
CVSS ScoreBase 6.4
Base 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N/E:F/RL:U/RC:C
Product Names From Source
Cisco Small Business SPA500 Series IP Phones

Related Products

Product CVE Evidence
Cisco Small Business SPA500 Series IP Phones CVE-2015-0670 Cisco OpenVuln