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Cisco Bug: CSCvo05687 - Cisco Wireless IP Phone 8821 and 8821-EX Remote Code Execution Vulnerability

Last Modified

Jun 10, 2019

Products (1)

  • Cisco IP Phone 8800 Series

Known Affected Releases

11.0(4)SR2015

Description (partial)

Symptom:
A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code.

The vulnerability exists because the software improperly validates user-supplied input during user authentication. An attacker could exploit this vulnerability by connecting to an affected device using HTTP and supplying malicious user credentials. A successful exploit could allow the attacker to trigger a reload of an affected device, resulting in a DoS condition, or to execute arbitrary code with the privileges of the app user.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190320-ip-phone-rce

Conditions:
Please refer to the Security Advisory.
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