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Cisco Unified IP Phone 9900 Series Mobility Extension Availability Vulnerability

Cisco-SA-20150204-CVE-2015-0600 · Medium · Published · Updated

A vulnerability in the mobility extension support of Cisco Unified IP Phone 9900 Series could allow an unauthenticated, remote attacker to log off the mobility extension user. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted packets to an affected device. An exploit could allow the attacker to cause a denial of service (DoS) condition in which the user is no longer associated with the device and must log in again. Cisco has confirmed the vulnerability in a security notice; however, software updates are not available. To exploit this vulnerability, the attacker may need access to trusted, internal networks behind a firewall to send crafted packets 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.

Cisco advisory ·CSAF JSON

Workarounds

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.

CVEsCVE-2015-0600
Cisco Bug IDsCSCuq12139
CVSS ScoreBase 4.3
Base 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P/E:F/RL:U/RC:C
Product Names From Source
Cisco Unified IP Phones 9900 Series Firmware

Related Products

Product CVE Evidence
Cisco Unified IP Phones 9900 Series Firmware CVE-2015-0600 Cisco OpenVuln