A vulnerability in the Cisco Small Business SPA300 and SPA500 Series IP Phones could allow an unauthenticated, local attacker to access the debug shell and file system of the affected device. The vulnerability is due to insufficient authentication implementation in the debug console interface. An attacker could exploit this vulnerability by sending crafted commands to the debug interface of the affected device. An exploit could allow the attacker to execute arbitrary commands and access system memory with elevated privileges. Cisco has confirmed the vulnerability in a security notice; however, software updates are not available. To exploit this vulnerability, an attacker must have local access to the targeted device. This access requirement may reduce 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.
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 | 2014-Jul-09 |
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